Arctic Sea Ice : Forum

Cryosphere => Arctic background => Topic started by: Tor Bejnar on July 05, 2013, 03:20:56 PM

Title: Arctic Maps
Post by: Tor Bejnar on July 05, 2013, 03:20:56 PM
The first map of the Arctic that I found on the internet that included a scale was this National Geographic map:  http://maps.nationalgeographic.com/maps/atlas/arctic-ocean-geopolitical.html (http://maps.nationalgeographic.com/maps/atlas/arctic-ocean-geopolitical.html).  (The scale is in the upper left corner, to which you may need to scroll.)

There is a Google Map of Greenland (and Nares Strait) with lots of location names here on the ASIF: https://forum.arctic-sea-ice.net/index.php/topic,277.0.html (https://forum.arctic-sea-ice.net/index.php/topic,277.0.html).  This thread has other Greenland area maps referenced as well.
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 08, 2013, 01:51:37 PM
Easier to read reference map (with scale) of the Arctic: http://www.lib.utexas.edu/maps/islands_oceans_poles/arctic_ref802647_1999.jpg (http://www.lib.utexas.edu/maps/islands_oceans_poles/arctic_ref802647_1999.jpg)

NOAA (The US's National Oceanic and Atmospheric Administration) has a collection of Arctic maps at: http://www.arctic.noaa.gov/maps.html (http://www.arctic.noaa.gov/maps.html)
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 16, 2013, 07:14:49 PM
Maps of Arctic ice, temperature, air pressure, etc., can be found on Neven’s Arctic Sea Ice Graphs (ASIG) page: https://sites.google.com/site/arcticseaicegraphs/ (https://sites.google.com/site/arcticseaicegraphs/).  Many maps and graphs link to interesting websites.
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 20, 2013, 11:33:00 PM
Weather reports for Arctic towns available from:  http://www.athropolis.com/map2.htm (http://www.athropolis.com/map2.htm)
This map (with a scale) also shows both Inuvik, N.W. Territories and Pond Inlet, Baffin Island, the start and goal for the NW Passage rowers (See https://forum.arctic-sea-ice.net/index.php/topic,387.0.html (https://forum.arctic-sea-ice.net/index.php/topic,387.0.html)).  The rowers are not too terribly far from Tuktoyaktuk with reported weather (as an example of what is available from this site):
Quote
Weather report as of 25 minutes ago (21:00 UTC):
The wind was blowing at a speed of 6.2 meters per second (13.8 miles per hour) from East/Northeast in Tuktoyaktuk, Canada. The temperature was 15 degrees Celsius (59 degrees Fahrenheit). Air pressure was 1,018 hPa (30.06 inHg). Relative humidity was 54.8%. There were a few clouds at a height of 213 meters (700 feet), a few clouds at a height of 2438 meters (8000 feet) and broken clouds at a height of 6706 meters (22000 feet). The visibility was 24.1 kilometers (15.0 miles).
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 22, 2013, 03:40:27 PM
The Geological Survey of Canada produced a beautiful geological map of the Arctic in 2008.  The ice may come and go, but the rocks change only slowly. :)  PDF or JPEG downloads available: http://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/downloade.web&search1=R=287868 (http://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/downloade.web&search1=R=287868)
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 24, 2013, 07:35:48 PM
Fascinating old maps of the Arctic available at http://commons.wikimedia.org/wiki/Category:Old_maps_of_the_Arctic (http://commons.wikimedia.org/wiki/Category:Old_maps_of_the_Arctic)

Did you know that in 1595 there was (thought to be) a continent surrounding the North Pole (with high black cliffs!) with four rivers flowing southwards into what we would call the Arctic Ocean (then Icy Sea), and that Nares Strait and Baffin Bay were called Fretum Dauis?  If you can read Latin, there is so much more! (like: 4 foot tall Pygmies whose shouts carry a long way – remember that my Latin is rustier than my Tatar [an insult to rust, sorry to say] so I use Google Translate and guess what letters make up the words)
Title: Re: Arctic Maps
Post by: Espen on July 25, 2013, 11:21:20 PM
When all this fuzz about Jakobshavn is over, here is how it will look like:
Title: Re: Arctic Maps
Post by: Anne on July 26, 2013, 12:03:51 AM
Thanks, Espen. That's wonderful. I love the captions. Do you have a date for it?
Title: Re: Arctic Maps
Post by: Espen on July 26, 2013, 12:21:46 AM
Hi Anne;

Published May 1 1818 by T & J Allman, Princess Street, Hannover Square, London.

Note it is not April 1st ;)
Title: Re: Arctic Maps
Post by: Anne on July 26, 2013, 12:28:38 AM
Thanks, I've just found it! This looks very interesting, if not entirely reliable. (http://books.google.co.uk/books?id=jzVcvTkgkYQC&pg=PR3&lpg=PR3&dq=map+greenland+allman+hanover+square&source=bl&ots=7TMid5S0AQ&sig=OoD_7gjut461coQOlMkL5IttzWw&hl=en&sa=X&ei=AqbxUZWOKaea1AXo0IGAAQ&ved=0CC0Q6AEwAA#v=onepage&q=map%20greenland%20allman%20hanover%20square&f=false)
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 27, 2013, 02:33:59 PM
A set of Arctic weather maps that almost anybody can comprehend at http://www.weather-forecast.com/maps/Arctic (http://www.weather-forecast.com/maps/Arctic)!  (They are not sophisticated.)
10-day forecasts in 6-hour increments forWatch an animation or select a date/time and look at the various maps available.  Also, current conditions at land-based reporting stations: air temperatures, wind speed/direction, weather (sun/cloud/rain). 

Good luck at finding the little “[Advanced mode]” (includes "significant ocean wave heights" and "tide forecasts") and where you can change from Fahrenheit to Celsius.
 
The current 10-day forecast calls for some snow almost every day on Ellesmere Island, and there are currently 12 foot seas off the southern tip of Greenland. 
Edit:  The "H"s and "L"s on the synoptic maps sure leave something to be desired!  One day the current storm's low pressure  is identified with an "L", the next day the low pressure is identified with an "H"  :(
Title: Re: Arctic Maps
Post by: Tor Bejnar on August 09, 2013, 06:57:46 PM
I looked around the NOAA site referenced above (July-8) and note that http://www.seaice.de/ (http://www.seaice.de/) has links to many of the resources known to us (for example, NSIDC's Sea Ice Index, Cryosphere Today and IARC-JAXA). 

The very first bulleted item is for Sea ice data from the University of Hamburg's Integrated Climate Data Center.  One could spend hours and hours reading about climate science here.

One bulleted item reads "Arctic.io Neven's Arctic sea ice blog Arctic sea ice graphs collection"
On close examination, three hyperlinks are offered: two of which are Neven's Arctic Sea Ice Blog and Arctic Sea ice Graphs.  The third hyperlink (http://www.arctic.io/ (http://www.arctic.io/)) includes a temperature map (reproduced below) with this description:
Quote
New Polar Portal with Sea Ice Temperatures
Aug_09_2013
Just launched this web site of Danish research institutions [-] displays the results of their monitoring efforts in the Arctic. New to me is the above composite of sliding mean temperatures captured by the Metop-A satellite. [hyphen added for clarity (I hope!)]
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fpolarportal.org%2Fuploads%2Ftx_dmidatastore%2Fwebservice%2Fn%2Fe%2F_%2Fl%2Fl%2FMap_IST_Small_en.png&hash=d2934af35efd9b0698304b1a6a301ab7)
Title: Re: Arctic Maps
Post by: anonymous on August 09, 2013, 09:14:31 PM
Should add the sea ice temperature map is actually from polarportal.dk (http://polarportal.dk/en/home/) (Danish/English) and mention recently a German/English portal also launched: meereisportal.de (http://www.meereisportal.de/de/)

I expect more interesting maps appearing on these sites soon...
Title: Re: Arctic Maps
Post by: Tor Bejnar on August 15, 2013, 06:17:26 PM
http://mondediplo.com/maps/peril (http://mondediplo.com/maps/peril)
Planet in Peril: Atlas of Current Threats to People and the Environment
Le Monde diplomatique (English Edition)

After a brief intro, the first subtitle in this article about the Atlas is "Polar ice caps melting faster" with a map showing forecasts of September Arctic ice coverage through 2090.
What??? ... Ahh: this was published in 2006 with data from 2005.

So, before 2007, the polar ice caps were "melting faster" and losing ice was the top threat to people (of 15 threats - Global warming was 2nd; health care and 'China' end the list).  Few suspected weather and other things that affect ice conditions could 'conspire' to bring about 2007 and 2012 Arctic ice loss in those 'good old days' when the Arctic was going to keep some ice around for the next 75 years.
Title: Re: Arctic Maps
Post by: Tor Bejnar on August 19, 2013, 05:34:19 PM
NSIDC makes it easy to compare a few features for different months and different years:  http://nsidc.org/cgi-bin/bist/bist.pl?annot=1&legend=1&scale=50&tab_cols=3&tab_rows=3&config=seaice_index&submit=Refresh&mo0=07&hemis0=N&img0=conc&mo1=08&hemis1=N&img1=conc&mo2=09&hemis2=N&img2=extn&year0=2007&year1=2012&year2=2013 (http://nsidc.org/cgi-bin/bist/bist.pl?annot=1&legend=1&scale=50&tab_cols=3&tab_rows=3&config=seaice_index&submit=Refresh&mo0=07&hemis0=N&img0=conc&mo1=08&hemis1=N&img1=conc&mo2=09&hemis2=N&img2=extn&year0=2007&year1=2012&year2=2013)
This link compares 2007, 2012 and 2013 showing July ice concentration, August ice cocentration and September extent.  (Obviously, no data for August and September 2013 yet!)
Title: Re: Arctic Maps
Post by: Tor Bejnar on September 09, 2013, 09:39:21 PM
Is there an Arctic map that you refer to occasionally that is not referenced here (yet) and is not linked on Neven's ASIG page?  There must be some good ones out there! 

For example: Wipneus’s red & blue daily ice extent change maps are on his “Home brew AMSR2 extent & area calculation” thread http://forum.arctic-sea-ice.net/index.php/topic,382.0.html (http://forum.arctic-sea-ice.net/index.php/topic,382.0.html).  Bi-weekly extent change maps are prepared for Neven’s bi-weekly ASIB updates.  Wipneus posted a really cool annual extent change map today http://neven1.typepad.com/blog/2013/09/piomas-september-2013.html?cid=6a0133f03a1e37970b019aff4895ec970b#comment-6a0133f03a1e37970b019aff46f429970d (http://neven1.typepad.com/blog/2013/09/piomas-september-2013.html?cid=6a0133f03a1e37970b019aff4895ec970b#comment-6a0133f03a1e37970b019aff46f429970d).  Are these gathered anywhere else with public access?
(https://sites.google.com/site/arctischepinguin/home/asib/tmpjaxa.png)
Title: Re: Arctic Maps
Post by: Tor Bejnar on September 12, 2013, 05:53:36 PM
Arctic sea ice maps before 1979 are accessible via NSIDC, etc.  See this ASIB entry:
http://neven1.typepad.com/blog/2013/09/ipcc-crisis-meeting.html?cid=6a0133f03a1e37970b019aff57dc55970d#comment-6a0133f03a1e37970b019aff57dc55970d (http://neven1.typepad.com/blog/2013/09/ipcc-crisis-meeting.html?cid=6a0133f03a1e37970b019aff57dc55970d#comment-6a0133f03a1e37970b019aff57dc55970d)
 
I randomly selected a chart (Point Barrow, 9/11/53) and submitted a request and got a  "page not found" response, but the system looks accessible.
Title: Re: Arctic Maps
Post by: Tor Bejnar on January 31, 2014, 04:48:14 AM
Neven recently wrote a blog post titled "Sea ice atlas" - http://neven1.typepad.com/blog/2014/01/sea-ice-atlas.html (http://neven1.typepad.com/blog/2014/01/sea-ice-atlas.html).  He starts his description with "Now, this is what I call a cool tool."

Have a look-see if you haven't yet.
Title: Re: Arctic Maps
Post by: Tor Bejnar on February 22, 2014, 10:29:05 PM
Artist's Sea Level Rise Map Envisions A World Of New Seas And Coastlines
http://www.huffingtonpost.com/2014/02/20/sea-level-rise-map_n_4824483.html?utm_hp_ref=mostpopular (http://www.huffingtonpost.com/2014/02/20/sea-level-rise-map_n_4824483.html?utm_hp_ref=mostpopular)

"Martin Vargic, an amateur graphic designer from Slovakia, designed this map that depicts a world after 260 feet of sea level rise."  Map includes polar views,and enlarges quite a bit.


Title: Re: Arctic Maps
Post by: Tor Bejnar on April 24, 2014, 06:19:52 PM
http://www.meteociel.fr/modeles/gfse_3d.php (http://www.meteociel.fr/modeles/gfse_3d.php)
BFTV posted this neat "interactive 3D globe for displaying jet stream, 850hPa temperatures, 500hPa heights and SLP forecast animations" elsewhere.  Centered on France, it shows virtually the entire Arctic.

(Doesn't work on Safari, but does on Firefox.)
Title: Re: Arctic Maps
Post by: Anne on June 11, 2014, 10:43:30 AM
National Geographic is changing the way it portrays the Arctic, to reflect the decline in the ice cap. The 10th edition will differentiate between multi-year ice and the maximum extent of seasonal ice, and they are using 2012 as the basis for the new representation.

(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fi.kinja-img.com%2Fgawker-media%2Fimage%2Fupload%2Fs--Xhf9D_Ud--%2Fc_fit%2Cfl_progressive%2Cq_80%2Cw_636%2Fzpu39qdlfcpphzbby04r.gif&hash=ee69607b05d4a4526e083b92958615c1)

Gizmodo has the story here: Link (http://gizmodo.com/melting-arctic-ice-is-drastically-changing-national-geo-1588660333)

NG's own story with video (requires registration) here:
http://news.nationalgeographic.com/news/2014/06/140609-arctic-ice-maps-atlas-tenth-edition-science/?_ga=1.122900104.2047681544.1371579435# (http://news.nationalgeographic.com/news/2014/06/140609-arctic-ice-maps-atlas-tenth-edition-science/?_ga=1.122900104.2047681544.1371579435#)
Title: Re: Arctic Maps
Post by: Anne on June 11, 2014, 03:47:59 PM
The Inuit Pan Arctic Atlas

(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fwww.dal.ca%2Fnews%2F2014%2F06%2F10%2Farctic-connections--mapping-historic-inuit-trails-online%2F_jcr_content%2Fimage.adaptive.579.high.jpg&hash=ece12f24224925b8a4c0f2167bb29e65)

Quote
The Atlas is one of the outcomes of the project “The Northwest Passage and the construction of Inuit pan-Arctic identities” (funded by SSHRC—the Social Sciences and Humanities Research Council), and co-directed by Claudio Aporta (Marine Affairs Program, Dalhousie University), Michael Bravo (Geography, University of Cambridge), and Fraser Taylor (Geomatics and Cartographic Research Centre, Carleton University). This project looks at Inuit occupancy of the Northwest Passage, through a study and documentation of Inuit traditional trails and place names, which have interconnected Inuit groups across the Arctic since time immemorial.

The two main research questions for this project are:

1. how extensive and significant is the historical Inuit presence along the Northwest Passage? and
2. how interconnected Inuit groups were before Europeans arrived?

This Atlas focuses on historical written evidence of Inuit presence in most of the Canadian Arctic. It contains a selection of material obtained from hundreds of published and unpublished documents produced by explorers, ethnographers and other visitors who were in contact with Inuit during the early contact period or shortly before Inuit moved to permanent settlements. A very significant proportion of those trails and place names are still used today. The Atlas is a database, and the sources can be found through searches, or clicking on the features on the map. Each document has been given a geographic reference (which in some cases, it occupies the whole Canadian Arctic). Whenever possible Inuit place names and trails encountered in the documents were digitized separately.

http://paninuittrails.org/index.html?module=module.about (http://paninuittrails.org/index.html?module=module.about)
Title: Re: Arctic Maps
Post by: Tor Bejnar on June 27, 2014, 02:33:07 PM
Frivolousz21 (in The 2014 Melting Season « Reply #1632 on: Today at 05:15:28 AM »)
posted this color-coded bathymetry map of the Arctic that shows at a glance, among other things, how shallow the Siberian coastal waters are and how deep the Canadian Arctic Archipelago (CAA) channels are.

(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FkIZYgHd.png&hash=d435691d98e411d7be9a854ec275edb7)
Title: Re: Arctic Maps
Post by: Anne on November 19, 2014, 02:28:23 PM
Russians discover new island in Laptev Sea.


(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fwww.adn.com%2Fsites%2Fdefault%2Ffiles%2Fstyles%2Ffull_width_620%2Fpublic%2Fnewislandrussia.jpg%3Fitok%3DqxCO2qsn&hash=69341f60533537c193385b855afa201f)


Admittedly it's not very big, but its previously unknown existence shows how poorly mapped that region remains.

More here:
http://www.adn.com/article/20141117/arctic-satellite-image-week-russia-discovers-new-arctic-island (http://www.adn.com/article/20141117/arctic-satellite-image-week-russia-discovers-new-arctic-island)
Title: Re: Arctic Maps
Post by: Tor Bejnar on January 20, 2015, 06:02:49 PM
Not of the Arctic, but interesting still:
http://www.newscientist.com/article/dn26803-map-that-changed-the-world-has-its-200th-birthday.html#.VL6G2S4-XOE (http://www.newscientist.com/article/dn26803-map-that-changed-the-world-has-its-200th-birthday.html#.VL6G2S4-XOE)
Map that changed the world has its 200th birthday
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fwww.newscientist.com%2Fdata%2Fimages%2Fns%2Fcms%2Fdn26803%2Fdn26803-1_1200.jpg&hash=c40ac886ed493f1ce4e092be09b579b6)
More info: http://en.wikipedia.org/wiki/William_Smith_%28geologist%29 (http://en.wikipedia.org/wiki/William_Smith_%28geologist%29)

I recently read The Map That Changed the World: William Smith and the Birth of Modern Geology by Simon Winchester (published in 2001)
Title: Re: Arctic Maps
Post by: Tor Bejnar on January 22, 2015, 01:24:55 PM
Here's a map of the Arctic from the mid 1800s:
(Let's see if I can attach a jpg file.)
Title: Re: Arctic Maps
Post by: Tor Bejnar on February 12, 2015, 08:04:09 PM
Here is a weather map used by solartim27 for Greenland and area (including, if you want, Europe and the rest of the world, excluding polar regions): www.windfinder.com/weather-maps/forecast/greenland (http://www.windfinder.com/weather-maps/forecast/greenland)
Title: Re: Arctic Maps
Post by: Tor Bejnar on March 30, 2015, 02:17:27 PM
This map (attached), brought to our attention by Sleepy on the 'Jakobshavn Isbræ / Sermeq Kujalleq / Ilulissat Icefjord ' thread on March 20, 2015, is similar to the one Espen shared on July 25, 2013 (above)
Title: Re: Arctic Maps
Post by: Tor Bejnar on April 17, 2015, 05:52:09 PM
Concerning the Arctic Sea ice Graphs (http://sites.google.com/site/arcticseaicegraphs/) page's forecasts page (http://sites.google.com/site/arcticseaicegraphs/forecasts):

That page is awesome! Thanks, Neven.

EDIT: the whole site is awesome actually! You've done a lot of work on it since a few months ago?

Thanks, slow wing. I update every few months, usually at the start of the melting season. The SLP patterns page was too much work (I figured Concentration maps is enough work already), which is why I've created the Forecasts page. I now only have to complete updating the Concentration maps page before the month is out, and then it's all set for the 2015 melting season.

So, go look at the 'new' http://sites.google.com/site/arcticseaicegraphs/forecasts (http://sites.google.com/site/arcticseaicegraphs/forecasts) page,
Quote
              Air temperature anomaly
click here (http://sites.google.com/site/arcticseaicegraphs/forecasts2) to see actual surface air temperatures
and click on the "here (http://sites.google.com/site/arcticseaicegraphs/forecasts2)" link to see actual temperatures.
Title: Re: Arctic Maps
Post by: Tor Bejnar on April 17, 2015, 07:37:57 PM
From the ASIB: 'real time' ice thickness maps (http://www.cpom.ucl.ac.uk/csopr/seaice.html)!!!

Boa05att wrote:
Quote
Hi Neven, ...
Is this the BBC scoop you were mentioning? :-)
'3D Cryosat' tracks Arctic winter sea ice
http://www.bbc.com/news/science-environment-32348291
 (http://www.bbc.com/news/science-environment-32348291)
Neven replied:
Quote
Yes, that's the scoop. CryoSat now has maps (http://www.cpom.ucl.ac.uk/csopr/seaice.html)!
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fwww.cpom.ucl.ac.uk%2Fcsopr%2Fsidata%2Fthk_28.png&hash=f2d0199709d1124a821000ec1f466d41)
Title: Re: Arctic Maps
Post by: Neven on April 18, 2015, 12:03:52 AM
Thanks, Tor, blog post is up (http://neven1.typepad.com/blog/2015/04/cryosat-sea-ice-thickness-maps.html).
Title: Re: Arctic Maps
Post by: Tor Bejnar on May 26, 2015, 03:36:35 PM
The forecast maps (https://sites.google.com/site/arcticseaicegraphs/forecasts) aren't working for me on the Arctic Sea ice Graphs (https://sites.google.com/site/arcticseaicegraphs/) site right now, so I looked elsewhere.  I just discovered some lovely animations on DMI:  Ocean Forecast - plots and animations (http://ocean.dmi.dk/anim/index.uk.php) (up to 5 day forecasts).  Selecting the "Arctic Sea" 'Geographical domain', it includes maps/animations for:
Title: Re: Arctic Maps
Post by: Tor Bejnar on May 28, 2015, 02:59:16 PM
from:  The 2015 melting season (http://forum.arctic-sea-ice.net/index.php/topic,1149.950.html)
« Reply #996 on: Today at 08:09:06 AM »
The ADS/vishop site now has a "Sea Ice Forecast" overlay feature. The images don't copy well to show here... go play with it on their page.

https://ads.nipr.ac.jp/vishop/vishop-monitor.html?N
 (https://ads.nipr.ac.jp/vishop/vishop-monitor.html?N)
...
Title: Re: Arctic Maps
Post by: Neven on June 02, 2015, 03:27:36 PM
The forecast maps (https://sites.google.com/site/arcticseaicegraphs/forecasts) aren't working for me on the Arctic Sea ice Graphs (https://sites.google.com/site/arcticseaicegraphs/) site right now, so I looked elsewhere.

The images were moved to another server. I've adjusted the link addresses. Page is working again.
Title: Re: Arctic Maps
Post by: Tor Bejnar on June 09, 2015, 07:24:18 PM
High-Resolution Global Soil Moisture Map (http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA19337)  New, from NASA's Jet Propulsion Lab: Soil Moisture Active Passive (SMAP).  (White means snow, ice or frozen.)

(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fwww.jpl.nasa.gov%2Fspaceimages%2Fimages%2Fmediumsize%2FPIA19337_ip.jpg&hash=96ada3ce865fa1f6f854b40e3194740a)
More info via Through the Sandglass (http://throughthesandglass.typepad.com/through_the_sandglass/2015/06/our-arid-planet.html).
Title: Re: Arctic Maps
Post by: Tor Bejnar on June 17, 2015, 07:14:02 PM
If 'functionally ice-free' is defined as the Arctic having less than 106 sq. km. area, then what does 1,000,000 square kilometers look like?  Let's see: pies are square! so it's a circle with a 564 km radius or a semi-circle with a 1596 km diameter.  Attached (I hope) is a map showing the 2012 minimum extent (3.41M sq.km.) with a semicircle that is approximately 1M sq.km. in area. [Edit: replace PDF image with JPG image.]

Title: Re: Arctic Maps
Post by: A-Team on June 17, 2015, 11:29:42 PM
#25 Here's a map of the Arctic from the mid 1800s:
That map was made by August Petermann in 1865. Its title is 'Karte der Arktischen & Antarktischen Regionen'. There is a nice zoomable version at the first link below and a discussion of Petermann's take on the Gulf Stream and Irminger Current at the second (along with an 1869 update, below).

Petermann was ridiculed in later decades for proposing that warm currents continuing up from the Atlantic and Bering Strait could lead to open water in the central Arctic Ocean. The 1865 map actually has the currents colored red and blue for temperature.

Interestingly, neither map shows any detail in the region of Petermann Glacier in NW Greenland which, though named after him, he never visited.

http://www.themaphouse.com/search_getamap.aspx?id=5757&ref=POLAR229 (http://www.themaphouse.com/search_getamap.aspx?id=5757&ref=POLAR229)
http://johnmckay.blogspot.com/2010/06/petermanns-polar-lands.html (http://johnmckay.blogspot.com/2010/06/petermanns-polar-lands.html)
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 02, 2015, 08:42:08 PM
Thanks, A-Team.

Further to my "How big is 1,000,000 sq. km." question, Hudson Bay has a surface area of 1,230,000 square kilometers and a spherical cap from 85N is 979,000 sq. km. (if my calculation is correct).
Title: Re: Arctic Maps
Post by: Tor Bejnar on August 20, 2015, 04:51:53 PM
Quote
Map from early Arctic explorer, Willem Barents (1601). Here be dragons (https://www.flickr.com/photos/thornet/14759770378/).
The link leads to a Flickr image showing there was open water all the way to the North Pole in 1601 (and dragons).  :D

Arctic Map By William Barents 1588 - more dragons  :), but I'm not certain about open water above 80N :'(
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Frender.fineartamerica.com%2Fimages%2Frendered%2Fmedium%2Fphone-case%2Fiphone4%2Fimages-medium-5%2Farctic-map-by-william-barents-1588-science-source.jpg&hash=4325825dad2d82a512d5170bdef73c8e)
Title: Re: Arctic Maps
Post by: Tor Bejnar on December 21, 2015, 05:59:55 PM
Arctic Coastal Erosion, Beaufort Sea Coast, AK (https://www.youtube.com/watch?v=BWpRjiUBiDg) - click to access 3-minute YouTube presentation.
Quote
Uploaded on Jul 29, 2011

Time-lapse series of coastal bluff erosion along the Arctic Coast at Drew Point, Beaufort Sea, Alaska. Coastal erosion rates exceeding 20 meters per year are being observed along the Arctic Coast, and they are especially high along Alaska's Beaufort Sea coastline. Comparison of aerial photos and LANDSAT imagery suggest accelerating erosion rates over the last 50 years. Arctic sea ice coverage has been declining dramatically over the last few decades and record September minima were observed in 2007. These observations suggest a causal relationship between sea ice decline and coastal change. The timelapse movies presented here show that the relative roles of thermal and wave energy may be significant. The bluffs consist of silt and have high ice-content. The thawing of the ice-rich bluffs by relatively warm seawater undermines coastal bluffs, leading to topple failures of discrete blocks defined by ice-wedge polygons. The fine-grained nature of these materials does not function as a protective barrier for incoming waves, so there is not a strong negative feedback on erosion rates, so that coastal erosion rates in this setting are likely to increase with continued Arctic warming.

Research Scientist, Irina Overeem, CSDMS, INSTAAR
Univ. of Colorado Boulder

The legend on the attached map is not clear any way I look at it, but appears to reference annual shores in 2000 through 2005.
Title: Re: Arctic Maps
Post by: Tor Bejnar on March 22, 2016, 08:34:25 PM
From the Svalbard (http://forum.arctic-sea-ice.net/index.php/topic,1504.msg72196.html#new) thread (comment #3):
Espen provides this link to a cool map of Spitsbergen and neighboring islands.  The smaller the scale you choose, the greater amount of detail shows. (For example, more words [details] appear on the map when you choose a scale that shows less area.)

And here is a very useful topographic map with glacier names etc.:

http://toposvalbard.npolar.no/ (http://toposvalbard.npolar.no/)
Title: Re: Arctic Maps
Post by: Espen on March 23, 2016, 08:27:49 PM
Adding another very useful map of North East Greenland:

http://geuskort.geus.dk/stednavnedb/#zoom=4.203140567090507&lat=8718990.9307876&lon=423315.96600678&filter= (http://geuskort.geus.dk/stednavnedb/#zoom=4.203140567090507&lat=8718990.9307876&lon=423315.96600678&filter=)
Title: Re: Arctic Maps
Post by: A-Team on March 24, 2016, 12:51:48 PM
Misanthropen Fjelde?

Quote
Snow-capped mountain in Lambert Land. The name is one of a group of five given by the Place Name Committee for dogs used on the 1906-08 Danmark-Ekspeditionen. They replaced names suggested by John Haller. ‘Misanthropen' was an old and rather miserable dog which did not get on with the other dogs in the team.
Quote
After the Norwegian–Danish dispute over the sovereignty of parts of East Greenland was settled at the International Court of Justice in The Hague in 1933, the Place Name Committee for Greenland (Stednavneudvalget) was established, and the place names used on existing published maps of Greenland were systematically reviewed and with few exceptions approved in danicised form.

More than 3000 place names were officially approved by the Place Name Committee for use in northern East Greenland up to the end of 1984, after which responsibility passed to the Home-Rule government at Nuuk in Green- land. More than a third of these place names were proposed by members of the expeditions led by the Danish geologist Lauge Koch. The post-war expeditions led by Lauge Koch were almost entirely geological in nature, and the place names given reflect in part geological characteristics of the features named, the animals encountered and events during the expeditions, as well as commemorating the mountains, lakes and other features of the home countries of the participants.
Gnejsnæs: peninsula in SW Lambert Land protruding into Zachariae Isstrøm. Named by John Haller following explorations during Lauge Koch's 1956-58 expeditions, for the rock type (gnejs = gneiss) and naes = village.

http://www.geus.dk/DK/publications/geol-survey-dk-gl-bull/21/Sider/default.aspx (http://www.geus.dk/DK/publications/geol-survey-dk-gl-bull/21/Sider/default.aspx)
Title: Re: Arctic Maps
Post by: Tor Bejnar on April 23, 2016, 04:35:20 PM
A map of Siberia with lots of place names can be found here (http://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~205579~3002497:U-S-S-R----Eastern-Siberia-and-Far-).  One can zoom in on areas of choice on the linked map (not the attached copy).
Title: Re: Arctic Maps
Post by: Tor Bejnar on October 30, 2016, 09:02:26 PM
I did an internet search for "outrageous Arctic maps" and spied this depressing, but not surprising, glimpse into the future:
(https://s-media-cache-ak0.pinimg.com/originals/95/ca/e7/95cae7ca6766acce5e52420be63fe68e.png)
Appearantly this is from Pinterest (https://www.pinterest.com/pin/57420963973571915/)
Title: Re: Arctic Maps
Post by: TerryM on October 31, 2016, 12:43:57 AM
Interesting to note that the above map was a product of the ever vigilant cartographers at The Heritage Foundation. Because they see climate change as a hoax, their worries about the Arctic are limited to fearing that evil Russians will attack if we don't remain ever vigilant.


We may remember The Heritage Foundation from their billboard campaign in which they associated climate change believers with Ted Kaczynski,  AKA The Unabomber, and Charles Manson.
http://mediamatters.org/blog/2012/11/28/meet-the-climate-denial-machine/191545 (http://mediamatters.org/blog/2012/11/28/meet-the-climate-denial-machine/191545)


http://www.sourcewatch.org/index.php/Heritage_Foundation (http://www.sourcewatch.org/index.php/Heritage_Foundation)
Notes that The Heritage Foundation recieved major funding from both the Koch brothers and South Korean Inteligence Service.


If The Heritage Foundation avows that Russia is a problem I'd be more inclined to fear the Irish.


Terry


Title: Re: Arctic Maps
Post by: Tor Bejnar on October 31, 2016, 03:08:37 AM
Terry,
Those billboards were from the Heartland Institute, I recall, but your point is well taken.
Title: Re: Arctic Maps
Post by: TerryM on October 31, 2016, 06:01:27 PM
Terry,
Those billboards were from the Heartland Institute, I recall, but your point is well taken.


OUCH!!
I saw Heritage Foundation as a source & some blood vessels must have popped in my eyes. :-[


My bad.
Terry
Title: Re: Arctic Maps
Post by: Tor Bejnar on December 01, 2016, 08:27:30 PM
cross post:
Let there be maps....

Modern day explorers from the Arctic nations of Canada, Denmark, Finland, Iceland, Sweden, Norway, Russia, and the United States are setting their sights north to map the seabed and establish sovereign rights to resources in an icy area that just over a decade ago was virtually inaccessible.

http://coastguard.dodlive.mil/2016/11/mapping-the-extended-continental-shelf-in-the-arctic/ (http://coastguard.dodlive.mil/2016/11/mapping-the-extended-continental-shelf-in-the-arctic/)
It will be nice to see actual maps some day!
Title: Re: Arctic Maps
Post by: Tor Bejnar on January 01, 2017, 05:27:33 AM
It appears I didn't mention here the Windytv.com (https://www.windytv.com/?2017-01-02-09,80.000,-65.435,4) website with awesome presentations of wind, temperature, waves, precipitation and pressure forecasts.
Title: Re: Arctic Maps
Post by: magnamentis on January 02, 2017, 01:17:27 AM
It appears I didn't mention here the Windytv.com (https://www.windytv.com/?2017-01-02-09,80.000,-65.435,4) website with awesome presentations of wind, temperature, waves, precipitation and pressure forecasts.

has been mentioned and used to post images a few times in the past but it's a such an extremely nice and useful tool that it's certainly good to bring it to more users by regular re-mentioning :-)

Feliz Año :-)
Title: Re: Arctic Maps
Post by: Tor Bejnar on January 16, 2017, 09:34:56 PM
Dragons that once appeared on maps of the Arctic apparently now only live in the Southern Ocean near Australia.
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fwww.sciencealert.com%2Fimages%2Farticles%2Fprocessed%2Fruby-seahorse_web_1024.jpg&hash=dc8400595d8a5560b9af5db37c44573b)
Quote
Zoe Della Vedova
Incredibly rare ruby sea dragon has been caught on camera for the first time

It's even more beautiful than we imagined.
CHRIS PASH, BUSINESS INSIDER
14 JAN 2017

A type of seadragon known only from museum specimens has been seen in the wild for the first time in deep water off Western Australia.

Two ruby seadragons were observed for nearly 30 minutes, uncovering new details about their anatomy, habitat, and behaviour.
 

The researchers from the University of Western Australia, the Western Australian Museum, and Scripps Institution of Oceanography used a mini-remotely operated vehicle in waters more than 50 meters deep near the Recherche Archipelago off Esperance.

Here’s the footage:
https://youtu.be/Bp5w4HjoaJM (https://youtu.be/Bp5w4HjoaJM)

Alright, I'm not really convinced early map makers were referencing the same or similar species to these small creatures now known to science.
Title: Re: Arctic Maps
Post by: Tor Bejnar on January 19, 2017, 05:05:16 PM
Cross-posted old map
epiphyte: definitely unprecedented in recorded history.

From one of my articles - http://www.science20.com/chatter_box/arctic_ice_july_2010_update_3_0 (http://www.science20.com/chatter_box/arctic_ice_july_2010_update_3_0)


The map shows what was considered to be an average minimum, i.e. summer  ice extent in 1939.
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fforum.arctic-sea-ice.net%2Findex.php%3Faction%3Ddlattach%3Btopic%3D1611.0%3Battach%3D40556%3Bimage&hash=3d068c0f28e763f9a60d5e953c0155c8)
Title: Re: Arctic Maps
Post by: be cause on January 19, 2017, 06:27:02 PM
I notice pack ice reaches to almost 85' N of Svalbard . Permanent sea ice appears to cover less area than in my old school Atlas from 1975..
Title: Re: Arctic Maps
Post by: logicmanPatrick on January 20, 2017, 02:56:45 AM
So extensive and dangerous a work

    Eleven nations established 14 principal research stations across the Polar Regions. 12 were in the Arctic, along with at least 13 auxilary stations. Over 700 men incurred the dangers of Arctic service to establish and relieve these stations between 1881 and 1884.

source:
http://www.pmel.noaa.gov/arctic-zone/ipy-1/Frontpage.htm (http://www.pmel.noaa.gov/arctic-zone/ipy-1/Frontpage.htm)
Title: Re: Arctic Maps
Post by: Tor Bejnar on February 01, 2017, 05:05:07 PM
Svalbard and Franz Josef Land (FJL)

The Norwegian  Svalbard archipelago (https://en.wikipedia.org/wiki/Svalbard) was known as Spitzbergen before 1925 and includes the island of Spitzbergen.  The Russian military's Franz Josef Land archipelago (https://en.wikipedia.org/wiki/Franz_Josef_Land) is also know as Franz Joseph Land and (less often) Franz Josef(ph) Islands.

(Bottom map of both archipelagoes is from a cruse company's PR map (https://www.google.com/imgres?imgurl=https%-land-arctic-for-explorers%2F79%2F&docid=laE9Z6y9O8A-uM&tbnid=Awq41djRoL3CsM%3A&vet=1&w=555&h=370&bih=756&biw=1263&q=svalbard%20franz%20josef%3A%2F%2Fposeidonexpeditions.com%2Fuploads%2Fprograms%2Ftb8F7K99zK53cfrWP10pcP5te_TlEtlF.jpg&imgrefurl=https%3A%2F%2Fposeidonexpeditions.com%2Farctic%2Ffranz-josef20land&ved=0ahUKEwjozrW4lu_RAhUB7yYKHXtCAXgQMwhjKD0wPQ&iact=mrc&uact=8))
Svalbard:
(https://upload.wikimedia.org/wikipedia/commons/c/c6/Spitsbergen_1758.jpg)
A cool map of FJL from an 1894-97 expedition is too big to show as an image (https://upload.wikimedia.org/wikipedia/commons/c/c0/Map_of_Franz_Josef_Land_showing_journeys_and_discoveries_of_Frederick_G._Jackson%2C_F.R.G.S._-_UvA-BC_OTM_HB-KZL_61_18_38.jpg).  An FJL sketch map (http://ccnmtl.columbia.edu/projects/poles/mapslides/nansen/) is depicted below.

Title: Re: Arctic Maps
Post by: magnamentis on February 01, 2017, 05:37:50 PM
Svalbard and Franz Josef Land (FJL)
A cool map of FJL from an 1894-97 expedition is too big to show as an image (https://upload.wikimedia.org/wikipedia/commons/c/c0/Map_of_Franz_Josef_Land_showing_journeys_and_discoveries_of_Frederick_G._Jackson%2C_F.R.G.S._-_UvA-BC_OTM_HB-KZL_61_18_38.jpg).  An FJL sketch map (http://ccnmtl.columbia.edu/projects/poles/mapslides/nansen/) is depicted below.

you can send me the image so i can gonna make it smaller for you if you like, assuming that you're talking about file size not image extent :-) however that as well could be fixed/altered, just in case you're interested.
Title: Re: Arctic Maps
Post by: Tor Bejnar on February 01, 2017, 08:19:31 PM
Thanks, magnamentis.  From above, here is the "cool map of FJL from an 1894-97 expedition is too big to show as an image (https://upload.wikimedia.org/wikipedia/commons/c/c0/Map_of_Franz_Josef_Land_showing_journeys_and_discoveries_of_Frederick_G._Jackson%2C_F.R.G.S._-_UvA-BC_OTM_HB-KZL_61_18_38.jpg)."  Click for enlarged, and much better looking, version.
(https://dl.dropboxusercontent.com/u/46421818/Sea%20Ice/2_Svalbard_Variants/Map_of_Franz_Josef_Land_XS.jpg)
Title: Re: Arctic Maps
Post by: Tor Bejnar on February 04, 2017, 08:14:02 PM
This isn't an Arctic map, but some may find this cross-post helpful:
There is a mix of ice shelfs here: Only the first picture shows the Shackelton Ice Shelf, the others show the West Ice Shelf where a large ice berg is finally breaking apart after staying put for at least 25 years.

All of the above images show the Shackleton ice shelf.  The West ice shelf lies between Amery and Shackleton and is not shown above.  Please see the image below.

The ice island in Shackleton is sometimes known as Pobeda ice island: it is mentioned in my article The Amery Zig-Zags. (http://www.science20.com/patrick_lockerby/the_amery_zigzags-224884)
Title: Re: Arctic Maps
Post by: Tor Bejnar on February 13, 2017, 03:39:57 PM
Crosspost plus Greenland map image (rotated - 'up' is to the right).  Click on links for 2 versions of map with scale.
'coastal topography'
http://membrane.com/sidd/greenland-2013/45-270.jpg (http://membrane.com/sidd/greenland-2013/45-270.jpg)
http://membrane.com/sidd/greenland-2013/large-1-text.jpg (http://membrane.com/sidd/greenland-2013/large-1-text.jpg)
I've yet to find better detail.
Title: Re: Arctic Maps
Post by: Tor Bejnar on February 25, 2017, 01:48:06 AM
maps, more maps, I want more Arctic maps... (I'm writing for the thread, not my insatiable appetite.)
...
Here is a map of the Western Arctic region displayed ...
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fforum.arctic-sea-ice.net%2Findex.php%3Faction%3Ddlattach%3Btopic%3D1611.0%3Battach%3D42195%3Bimage&hash=5b2a48bb4c7b4961bd54f0dee83d3816)
Title: Re: Arctic Maps
Post by: johnm33 on March 11, 2017, 01:08:53 PM
couple of interesting links, the first shows bathymetry worldwide reasonably well, but with too little detail for the shelves, the second is one of a series of 16 gives a slightly improved veiw but again lacks detail, and stops at 750 N/S
http://topex.ucsd.edu/marine_topo/globe.html (http://topex.ucsd.edu/marine_topo/globe.html)
http://topex.ucsd.edu/marine_topo/jpg_images/topo4.jpg (http://topex.ucsd.edu/marine_topo/jpg_images/topo4.jpg)
Title: Re: Arctic Maps
Post by: gerontocrat on March 11, 2017, 01:22:26 PM
maps, more maps, I want more Arctic maps... (I'm writing for the thread, not my insatiable appetite.)
...
Here is a map of the Western Arctic region displayed ...
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fforum.arctic-sea-ice.net%2Findex.php%3Faction%3Ddlattach%3Btopic%3D1611.0%3Battach%3D42195%3Bimage&hash=5b2a48bb4c7b4961bd54f0dee83d3816)

You could try contacting the Royal Geographical Society in London( RGS.org ). they've got heaven knows what in their archives.

Title: Re: Arctic Maps
Post by: Tor Bejnar on March 11, 2017, 07:33:57 PM
Nordaustlandet (northeast land) the second largest of Svalbard’s islands.

From a Royal Geographical Society's webpage (http://www.antiquemapsandprints.com/royal-geographical-society-496-c.asp):
Title: Re: Arctic Maps
Post by: Tor Bejnar on May 25, 2017, 05:10:56 PM
Here is a map showing the islands near Obuoy #14 in the Canadian Archipelago. (cross post from the Buoy thread (http://forum.arctic-sea-ice.net/index.php/topic,327.msg114691.html#msg114691)) [Edit: revised map from revised Obuoy post]
Title: Re: Arctic Maps
Post by: sqwazw on June 16, 2017, 06:20:16 AM
Not exactly a map, but it is pretty. Heres an exaggerated relief map of the bering strait, (High summer in 2021 by the looks of the ice):

(https://i.imgur.com/gdLjMU2.jpg)

Credit to reddit the front page for upvoting this.
Title: Re: Arctic Maps
Post by: Tor Bejnar on June 22, 2017, 07:06:21 PM
cross post:
Hans Island is composed of Silurian aged limestone, per this  1931 map (via Geo. Survey of Denmark) (http://www.geus.dk/DK/publications/geol-survey-dk-gl-bull/15/Documents/nr15_p77-80.pdf)
(Interesting that Petermann Fjord had a different name then.)
Title: Re: Arctic Maps
Post by: gerontocrat on June 22, 2017, 07:24:41 PM
cross post:
Hans Island is composed of Silurian aged limestone, per this  1931 map (via Geo. Survey of Denmark) (http://www.geus.dk/DK/publications/geol-survey-dk-gl-bull/15/Documents/nr15_p77-80.pdf)
(Interesting that Petermann Fjord had a different name then.)
Has the limestone gone dolomitic? Memories of breaking my hands and heart breaking up some of it in the Forest of Dean, England.
ps: These old maps are wonderful, made by true Mariner Masters.
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 25, 2017, 04:13:33 PM
A much better map than what I created June 15, 2015 (above)!
Mind you, by an ironic conincidence, "less than 1 million km2 of ice extent"  is almost exactly 15% of the average 1990s summer minimum...

Ha, I was wondering about that. Thanks, Peter. [...]

I like to say 'ice-free for all practical purposes', after hearing Walt Meier putting it like that once.

Someone has almost certainly already done this, but I don't know where, so I re-invented this wheel...

Here's a map showing what 1.0 million, 0.5 million, and 0.1 million km2 of ice extent could look like.  It's based on the grid cells with the maximum concentration in NSIDC September maps for the years 2008-2016.  My assumption is that ice will last longest in grid cells where Sept concentration is consistently the highest over the past decade.

[edit:  see map below]

If someone knows of a better version of this analysis here or elsewhere, please let me know!

Looking at the map, I'd say that 1 million km2 is actually a bit high for an "ice-free" threshold, personally.   
Title: Re: Arctic Maps
Post by: cesium62 on August 17, 2017, 01:08:09 AM
https://www.ngdc.noaa.gov/gazetteer/ (https://www.ngdc.noaa.gov/gazetteer/)
looks like a definitive interactive map of officially named undersea features.
Title: Re: Arctic Maps
Post by: Tor Bejnar on October 20, 2017, 04:18:12 PM
I don't recall posting a link to the sister thread Sea Level Rise Projections and Maps (https://forum.arctic-sea-ice.net/index.php/topic,526.0.html) that is in the "AGW in general - Consequences" section.  (There are precious few references to the Arctic in that thread, and no actually maps of the Arctic posted there.)
Title: Re: Arctic Maps
Post by: Tor Bejnar on November 08, 2017, 09:41:43 PM
Real maps!  Cross post from What's new in Greenland? thread.  I particularly value the map on the right that shows where glaciers have 'deep water ports' and are therefore most likely to suffer from warm ocean water melting their undersides.  The Petermann Glacier's fjord's depth was (more or less) known to me.  Of interest is Jakobshavn Glacier's deep connection to the interior.  Then there is the 3rd 'direct access' to the interior via Kane Basin and Humboldt Glacier.

https://www.nasa.gov/feature/jpl/new-greenland-maps-show-more-glaciers-at-risk (https://www.nasa.gov/feature/jpl/new-greenland-maps-show-more-glaciers-at-risk)

'New maps of Greenland’s coastal seafloor and bedrock beneath its massive ice sheet show that two to four times as many coastal glaciers are at risk of accelerated melting as previously thought.'

Sigh.
Title: Re: Arctic Maps
Post by: charles_oil on November 10, 2017, 11:18:50 AM

So is this the largest freshwater "lake" in the world - by far ???

Title: Re: Arctic Maps
Post by: Tor Bejnar on December 14, 2017, 08:44:03 PM
Cross posts.  (Adam Ash's post is cross posted above on Nov. 8.)

Title: "New map reveals landscape beneath Greenland's ice sheet"

https://phys.org/news/2017-12-reveals-landscape-beneath-greenland-ice.html

I wonder what is the relationship between the "new Greenland map" Adam Ash reported on above (November 7) and this one ["published this week (Thursday 14 December 2017)"].

From November 7 linked article:
Quote
Researchers at the University of California at Irvine (UCI), NASA and 30 other institutions have published the most comprehensive, accurate and high-resolution relief maps ever made of Greenland's bedrock and coastal seafloor. Among the many data sources incorporated into the new maps are data from NASA's Ocean Melting Greenland (OMG) campaign.
From today's linked article:
Quote
Produced by researchers at British Antarctic Survey (BAS), University of Bristol and University of California at Irvine (UCI), the printed map is unveiled this week at the American Geophysical Union meeting in New Orleans.

"Greenland Basal Topography BedMachine v3" is the new 1:3,500,000 scale map created from data collected by over 30 institutions.


 Read more at: https://phys.org/news/2017-12-reveals-landscape-beneath-greenland-ice.html#jCp
Title: Re: Arctic Maps
Post by: johnm33 on December 15, 2017, 10:46:13 AM
They still haven't corrected/eliminated the peninsular in front of Zacheraie
Title: Re: Arctic Maps
Post by: Tor Bejnar on April 28, 2018, 09:23:06 PM
Cross posts
The Boundaries of the Arctic Ocean Seas.

I looked for a definitive map of the Arctic Ocean with the boundaries marked in three ways - those used by the NSIDC for their regional extent and area spreadsheets, and the political boundaries.

I did not do very well.  I attach examples

Any idea where I can find them?
(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=143.0;attach=100196;image)
(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=143.0;attach=100198;image)
(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=143.0;attach=100199;image)
(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=143.0;attach=100200;image)
[Edit: Note: the following map on the NSIDC site (https://nsidc.org/data/masie/browse_regions) is interactive: each region is selectable.]
I think this is the NSIDC regions map.
(https://nsidc.org/sites/nsidc.org/files/images/data/masie/landmask_with_regions_countries.png)
Title: Re: Arctic Maps
Post by: Tor Bejnar on May 06, 2018, 03:28:10 PM
Posted elsewhere by uniquorn (https://forum.arctic-sea-ice.net/index.php/topic,2278.msg153075.html#msg153075)
(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=2278.0;attach=100484;image)
Title: Re: Arctic Maps
Post by: Anne on May 14, 2018, 07:40:23 PM
Slightly OT but interesting:
Greenland’s Hand-Sized Wooden Maps Were Used for Storytelling, Not Navigation
<snip>
Quote
On February 8, 1885, a hunter named Kunit approached Holm (Danish explorer) with a driftwood carving he had made—a representation of unbroken coastline that could be flipped around as one followed the contours of the coast. “[Kunit] had carved the chart himself and declared that it was not unusual to make such charts when one wanted to tell others about regions they did not know,” Holm wrote. The hunter produced three maps in total, now collectively referred to as the “Ammassalik maps.”

One carving, 5.5 inches in length, is highly detailed, embedded with all sorts of information and place names for the fjords above and beyond the 65th parallel. It even indicates locations where a traveler would need to carry his kayak overland to get to the next fjord. Another carving measures a little over 8.5 inches long and depicts a specific chain of islands along the coast, connected by narrow stems. These two maps could be placed next to one another to demonstrate the relative positions of the islands along the coast. A third, smaller map was also commissioned by Holm and shows the fjords stretching from Sermiligaaq to Kangerlussuatsiaq and includes valleys, shores, and inlets farther inland. Holm never actually traveled through the regions represented by the maps, but they helped him get a larger understanding of the local geography.

Much more, including pictures and video, at the link.
Atlas Obscura (https://www.atlasobscura.com/articles/greenland-wooden-maps-ammassalik)
Title: Re: Arctic Maps
Post by: Tor Bejnar on June 17, 2018, 03:44:37 PM
Thank you Anne.  The article was fascinating. And maps are maps, so it wasn't 'off topic'!

Hyperion posted (https://forum.arctic-sea-ice.net/index.php/topic,2278.msg159296.html#msg159296) this baythymetric map elsewehere:

(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=2278.0;attach=102840;image)
Title: Re: Arctic Maps
Post by: gerontocrat on June 18, 2018, 01:26:05 PM
Thank you Anne.  The article was fascinating. And maps are maps, so it wasn't 'off topic'!

I agree - maps is maps and always useful. So here are three more that I found useful when considering topics such as snow cover, effects of June river flows etc etc.
Title: Re: Arctic Maps
Post by: SimonF92 on July 01, 2018, 11:07:09 PM
One of my favourite resources for whole Arctic maps is the ECM, it gives some really nice theoretical maps based on global temperature changes

http://cci-reanalyzer.org/clim/ecm/

Title: Re: Arctic Maps
Post by: johnm33 on July 08, 2018, 01:01:43 PM
This (http://elevation.maplogs.com/) doesn't do a northern hemisphere projection, but it does allow for checking height/depth of features. Frinstance the depth of the hot-spot delivery trough
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fpuu.sh%2FASREp%2Fd4a18a301b.jpg&hash=fac3600a71d9bb114e58b148ec873e1f)
Title: Re: Arctic Maps
Post by: gerontocrat on August 20, 2018, 12:17:01 PM
Lots of stuff on the melting season thread on the Canadian Archipelago. Here is a political map with at least some of the names on.

https://www.dreamstime.com/nunavut-administrative-political-vector-map-flag-nunavut-administrative-political-vector-map-flag-image108825275

Title: Re: Arctic Maps
Post by: litesong on August 25, 2018, 07:55:23 PM
DeLorme(now owned by Garmin) highway maps are "books" of maps of the states of the U.S. The representation of Alaska is  a 156 page real book, with the highest detailed sector maps giving a stunning lifetime study of Alaska. Unfortunately for this website's followers, northern & western representation maps (including Alaskan lands bordering the Bering Sea, above the Arctic Circle line & Aleution Islands) are at a lower presentation of detail (still good,tho) & no sea ice conditions are included. However, the high detailed south & eastern sector maps, including shorelines & interior, do have glacier extents (hopefully accurate).  I have a 1998 version (gotten at garage sale) that I love. An up-dated Delorme Alaskan map is available, & would give interesting physical terrain detail differences to the original, if such be the case.   
Title: Re: Arctic Maps
Post by: kassy on October 06, 2018, 12:25:00 AM
Reposted from Artic Cafe thread

Test your knowledge of the Arctic seas, basins and shelfs in this 100 piece puzzle i made of a map Uniquorn posted.

https://www.jigsawplanet.com/?rc=play&pid=0a4eb46199b7
Title: Re: Arctic Maps
Post by: johnm33 on October 06, 2018, 08:49:25 PM
For arctic bathymetry try this https://maps.ngdc.noaa.gov/viewers/bathymetry/
click Arctic on right;
turn off 'multibeam surveys' and 'NOAA hydrographic data',
 Basemap option 2
 Options +contours and +graticule
detail, more when you zooom in
(https://forum.arctic-sea-ice.net/proxy.php?request=http%3A%2F%2Fpuu.sh%2FBGIxz%2F211fc09e74.jpg&hash=3045f57ab46782b11e3fd00c1201f67d)
Title: Re: Arctic Maps
Post by: Tor Bejnar on October 22, 2018, 04:56:00 PM
Cross post:
Ironbark Zinc took advantage of the poor ice conditions north of Greenland and chartered the ice breaking bulk carrier Nunavik for a tour to Citronen fjord as a proof of concept for their mine in the fjord.

http://sermitsiaq.ag/milepael-naaet-ironbark-projektet
Title: Re: Arctic Maps
Post by: Tor Bejnar on November 05, 2018, 05:17:20 PM
Cross-post:
PS:

weather.us has direct day-to-day comparisons now for very many variables! Unfortunately the data only goes back to 2017, but here is the year over year for snow depth.

(https://media.giphy.com/media/8JNDH9krEfhmNtlV7t/giphy.gif)

You can toggle back and forth for many other variables as well (SWE, water temp, sea ice, pretty much anything).

Go here and input whatever you want, just change region / timestamp etc:

https://weather.us/model-charts/euro/massachusetts/gusts-3h-mph/20171030-0600z.html

The ^ data is from the EURO. On that note, it is interesting that EURO is the only model where water temps and sea ice appear to be un-static, perhaps explaining one of the reasons why it is so much more accurate than the GFS / CMC, both of which lack these options for toggling (and whose consistently terrible output leads me to believe they do not incorporate it beyond 00z hr data as well).
Thanks for the resource, BBR
Title: Re: Arctic Maps
Post by: gerontocrat on December 01, 2018, 05:18:40 PM
A map - of the position of the main Greenland glacier fronts. I can never remember them all (easily confused at my age).

Also posted on "What's new in Greenland"
Title: Re: Arctic Maps
Post by: charles_oil on January 12, 2019, 08:44:33 PM
Not sure where this should go - but worth noting - looks like the Magnetic North Pole is sliding away from Canada / USA towards Russia.

I don't think this a DCMarvels superhero style achievement by some dastardly scientist / politician.....

"OSLO (Reuters) - Rapid shifts in the Earth’s north magnetic pole are forcing researchers to make an unprecedented early update to a model that helps navigation by ships, planes and submarines in the Arctic, scientists said.   
Compass needles point towards the north magnetic pole, a point which has crept unpredictably from the coast of northern Canada a century ago to the middle of the Arctic Ocean, moving towards Russia....... "


For a bit more (but no diagrams):
https://www.reuters.com/article/us-science-north/shifting-north-magnetic-pole-forces-unprecedented-navigation-fix-idUSKCN1P51UE (https://www.reuters.com/article/us-science-north/shifting-north-magnetic-pole-forces-unprecedented-navigation-fix-idUSKCN1P51UE)
Title: Re: Arctic Maps
Post by: charles_oil on January 13, 2019, 12:32:43 AM
Have found a map now - thanks to:
https://www.nzherald.co.nz/world/news/article.cfm?c_id=2&objectid=12189330


Looks like Nature has the original paper...
Update planned for 30th Jan is dependant on US gvt shutdown !!!
Title: Re: Arctic Maps
Post by: oren on January 13, 2019, 07:06:02 AM
This was posted by ASLR in the "ice apocalypse" thread, with some follow-on discussion
Title: Re: Arctic Maps
Post by: gerontocrat on January 25, 2019, 12:07:07 AM
Maps from paper
https://www.nature.com/scitable/knowledge/library/arctic-ocean-circulation-going-around-at-the-102811553

quoted in uniquorn's post https://forum.arctic-sea-ice.net/index.php/topic,2417.msg187169.html#msg187169
Title: Re: Arctic Maps
Post by: Tor Bejnar on March 06, 2019, 06:49:25 PM
North America continental divides - cross-post
Where will all the snowmelt go?

(https://upload.wikimedia.org/wikipedia/commons/1/15/NorthAmerica-WaterDivides.png)
Title: Re: Arctic Maps
Post by: Tor Bejnar on March 21, 2019, 02:44:27 PM
http://www.orangesmile.com/ru/foto/oceans/arctic-ocean.jpg
Title: Re: Arctic Maps
Post by: Tor Bejnar on April 26, 2019, 08:00:24 PM
cross post...
Hmmm.  I clicked on "Wikipedia map" and got a black X in a square instead of a map.  The map is at https://upload.wikimedia.org/wikipedia/commons/e/ee/Operational_Navigation_Chart_A-5%2C_3rd_edition.jpg
I was looking for a map with place names for the north-northwest corner of Greenland and came upon this detailed Wikipedia map (https://upload.wikimedia.org/wikipedia/commons/e/ee/Operational_Navigation_Chart_A-5%2C_3rd_edition.jpg).  It appears to not include places like Oodaaq/Oodaap Qeqertaa (https://en.wikipedia.org/wiki/Oodaaq) (which may not exist any more) but looks very useful.  I also found a Mapcarta map (https://mapcarta.com/19191224), but place names don't exactly match locations!

Does Espen have an opinion?
Go to the map and look at it enlarged.  (Screen prints are at 25% and 400%, just for a taste.)
Title: Re: Arctic Maps
Post by: Espen on April 26, 2019, 10:07:06 PM
Hello Tor the 2 islands you are asking for are found in some few maps like this one from GEUS the northernmost of the "islands" (sand gravel) is located at 83.40 where as Kap Morris Jesup is at 83.39 see attachment
Title: Re: Arctic Maps
Post by: Espen on April 26, 2019, 10:37:28 PM
And a few images from 1984 showing John Murray Island:
Title: Re: Arctic Maps
Post by: Tor Bejnar on June 11, 2019, 01:21:05 AM
I usually do know the difference between "Arctic" and "Antarctic", but cross-posts are [something]. :)

And for those who like to see where things are, here is a nice map of the various seas in Antarctica as used in these graphs.
(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=1759.0;attach=122711)
Title: Re: Arctic Maps
Post by: oren on June 11, 2019, 04:03:39 AM
Thank you Tor for continuing to update this important and interesting thread. Back-browsing here is a real pleasure.
Title: Re: Arctic Maps
Post by: gerontocrat on June 14, 2019, 07:39:50 PM
A couple of maps naming the islands of the Canadian Archipelago

And or those who like things on paper, a new map about Greenland and a lot more.

https://www.bbc.co.uk/news/science-environment-48611983

Quote
The seasonal sea-ice is in long-term decline and the ice sheet that sits atop Greenland is losing mass at a rate of about 280 billion tonnes a year.

So, if you choose to make a map of the region, you start from the recognition that what you're producing can only be a snapshot that will need to be updated in the relatively near future.

Laura Gerrish, a geographical information systems and mapping specialist at the British Antarctic Survey (BAS), knows this. Polar science and polar cartography are all about tracing change.

Laura has just finished making a exquisite new printed sheet map (1:4,000,000) of Greenland.

The detail is a delight - from the winding path of all the fjords and inlets, to the precise positioning of current ice margins, and the use of all those tongue-twisting Greenlandic names.
The Greenland and the European Arctic map is available for sale as either a flat wall map or a folded map at several outlets, including the Scott Polar Research Institute and Stanfords map store in London.
Title: Re: Arctic Maps
Post by: uniquorn on June 19, 2019, 12:11:52 AM
From Thomas E. Moore and Janet K. Pitman
Geological Society, London, Memoirs, 35, 731-750, 2011, https://doi.org/10.1144/M35.48

eurasia basin, geology and petroleum potential ;)
Title: Re: Arctic Maps
Post by: oren on June 19, 2019, 08:13:43 AM
The various routes of the Northwest Passage, with thanks to Jim Hunt.

(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=2591.0;attach=123360;image)
Title: Re: Arctic Maps
Post by: gerontocrat on July 22, 2019, 05:17:59 PM
Uniquorn..

Bathymetry Chukchi Sea

I end up with a not very detailed map
or a too detailed map

or this one
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 22, 2019, 05:41:13 PM
The match if Pacific salinity with melting patterns in the Chukchi Sea etc is also pretty neat - you can even see the baby elephants trunk along the Chukotka coast
I need a better resolution bathymetry map. The noaa map doesn't have the ~30m trough west of wrangel shown on mercator. Does anyone have one? Complete arctic ocean.
edit: please post in maps thread here https://forum.arctic-sea-ice.net/index.php/topic,417.0.html
Does this work? This is published by NOAA. (so maybe not)  Any way, here goes:
International Bathymetric Chart of the Arctic Ocean (https://ngdc.noaa.gov/mgg/bathymetry/arctic/arctic.html)
download map (https://www.ngdc.noaa.gov/mgg/bathymetry/arctic/downloads.html)
PDF version (https://www.ngdc.noaa.gov/mgg/bathymetry/arctic/IBCAO_TechnicalReference.PDF)

Here's the Wrangle Island area.
Title: Re: Arctic Maps
Post by: uniquorn on July 22, 2019, 05:50:48 PM
Thanks. This link works for me now I follow the instructions properly. https://maps.ngdc.noaa.gov/viewers/bathymetry/
I'll attempt to patch a few images together to make a nice big detailed map (only my connection is up and down like a yoyo today. Could be the heat)
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 22, 2019, 05:56:13 PM
Another Arctic Bathymetry map
https://www.arcgis.com/home/webmap/viewer.html?layers=e6f5d0f029d24b4099d7e3ed973f2117
Wrangle Island with north being up, this time.
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 22, 2019, 06:23:58 PM
Just having a look at the East Siberian Sea (ESS) bathymetry from ARCGIS (https://www.arcgis.com/home/webmap/viewer.html?layers=e6f5d0f029d24b4099d7e3ed973f2117).  These two images are 'big' so that the 10m, 25m and 50m contours show, as well as much of the width of the ESS.  The first image includes Wrangle Island and a spot of Siberia.  The second shows part of the New Siberian Islands WNW of the Lena Delta and much of the ESS's width.  Roughly speaking, it looks like the ESS is about half over 25m deep, and mostly under 50m. (click for full size if you want) The two areas are not adjacent.

Hmmm: the scale is in "mi" = miles.  Is the depth feet, fathoms, meters?????  Depth is in meters.
Title: Re: Arctic Maps
Post by: uniquorn on July 22, 2019, 06:55:22 PM
Thanks. ess has very few features by the look of it, just gradual slope. That doesn't even show at all on the noaa bathy (unless I'm doing something wrong)
Title: Re: Arctic Maps
Post by: uniquorn on July 22, 2019, 07:12:44 PM
here's my contribution from noaa. If you look carefully you can probably see the joins. If anyone knows how to show 34m contour let me know
Title: Re: Arctic Maps
Post by: johnm33 on July 22, 2019, 08:31:38 PM
It will zoom in a little more, try options bathymetry-contours, it doesn't always load fully, maybe once in three tries I'll get the full map with contours etc.
(https://puu.sh/DNHkb/e11a47e186.jpg)
(https://puu.sh/DW2Ns/d3027d23a3.jpg)
(https://puu.sh/DW2PE/fe3f1e1bb7.jpg)
It'll zoom in a little more but that's it as far as detail goes, what is handy is bottom left tells you the depth at any point.
Title: Re: Arctic Maps
Post by: johnm33 on July 22, 2019, 08:33:57 PM
plus
(https://puu.sh/DW3ab/715c2fdaed.jpg)
(https://puu.sh/DW3b9/b3dd9d0037.jpg)
Title: Re: Arctic Maps
Post by: mitch on July 22, 2019, 08:37:03 PM
When you refer to the "NOAA map" are you refering to the International Bathymetric Chart of the Arctic Ocean?:
https://www.ngdc.noaa.gov/mgg/bathymetry/arctic/arctic.html

The biggest problem in the Arctic is lack of data.  This is especially true on the shelf areas, because one needs to run a close grid of ship soundings to improve the map.  The version 3 of this map now has a 500 m pixel.
Title: Re: Arctic Maps
Post by: uniquorn on July 22, 2019, 09:07:57 PM
Thanks again everyone.
johnm33, I occasionally get incomplete contours, so I suppose I will try again, although if I zoom in that far it will be tricky to patch all the images together.
mitch, I've seen the letter sized map, I was hoping for something larger. Though it is pretty good when zoomed using acrobat. I'll try patching that together too.

I tried heavy contrast on the previous compilation and surprise, the contours are there. They are nearly all the same colour though. Here is the heavy contrast version, which satisfies me for now.
Title: Re: Arctic Maps
Post by: Tor Bejnar on July 26, 2019, 05:17:17 PM
Canadian Arctic Archipelago (CAA) map with many islands and waterways named.(https://upload.wikimedia.org/wikipedia/commons/a/aa/Canadian_Arctic_Archipelago%2C_annotated.svg)
[reference: Wikipedia (https://commons.wikimedia.org/wiki/File:Canadian_Arctic_Archipelago,_annotated.svg)]
Title: Re: Arctic Maps
Post by: SteveMDFP on July 26, 2019, 05:23:50 PM
Canadian Arctic Archipelago (CAA) map with many islands and waterways named.

Thanks for this.  As the CAA is currently melting rather fast,many of these place names are being mentioned, and many of us are pretty fuzzy about where they are.
Title: Re: Arctic Maps
Post by: Ossifrage on July 26, 2019, 09:59:51 PM
I talk a lot about the northern parts of the CAA. Here's my effort at assembling a more comprehensive map. I've... probably overlooked some names, and didn't bother with most of the minor islands. But this should suffice. Sorry that the numbers aren't in much of any order. Islands are in red, named water features in dark green.

Islands of the northern CAA
1 Prince Patrick Island
2 Eglinton Island
3 Melville Island
4 Brock Island
5 Emerald Isle
6 Mackenzie King Island
7 Borden Island
8 Ellef Ringnes Island
9 Meighen Island
10 Axel Heiberg Island
11 Ellesmere Island
12 Amund Ringnes Island
13 Lougheed Island
14 King Christian Island
15 Cornwall Island
16 Graham Island
17 Bathurst Island
18 Little Cornwallis Island
19 Cornwallis Island
20 Devon Island
21 Byam Martin Island
22 Banks Island
23 Victoria Island
24 Stefansson Island
25 Prince of Wales Island
26 Somerset Island
27 Baffin Island
28 Greenland

Water of the northern CAA
1 Arctic Ocean
2 M'Clure Strait. Part of the Parry Channel.
3 Crozier Channel
4 Kellett Strait
5 Fitzwilliam Strait
6 Ballantyne Strait
7 Wilkins Strait
8 Prince Gustav Adolf Sea
9 Peary Channel
10 Sverdrup Channel
11 Massey Sound
12 Kane Basin. Nares Strait is just north of here.
13 Baffin Bay
14 Norwegian Bay
15 Hassel Sound
16 Danish Strait
17 Maclean Strait
18 Hazen Strait
19 Hecla and Griper Bay
20 Byam Martin Channel
21 Desbarats Strait
22 Belcher Channel
23 Jones Sound
24 Glacier Strait
25 Lady Ann Strait
26 Lancaster Sound. Part of the Parry Channel.
27 Barrow Strait. Part of the Parry Channel.
28 Wellington Channel
29 Penny Strait
30 Austin Channel
31 Byam Channel
32 Viscount Melville Sound. Part of the Parry Channel.
33 Liddon Gulf
34 Beaufort Sea
35 Prince of Wales Strait
36 M'Clintock Channel
37 Peel Sound
38 Prince Regent Inlet
39 Admiralty Inlet
40 McDougall Sound
41 Nansen Sound
42 Greely Fjord
43 Eureka Sound



Title: Re: Arctic Maps
Post by: Tor Bejnar on July 27, 2019, 06:36:30 PM
Thanks so much, Ossifrage!  I knew you mentioned waterways not on the map I found, and looking them up and adding them was beyond my time-availability.  I like that your map also includes the several towns in the region (readable when the map is clicked/enlarged).  Also, when the map is opened in its own (computer screen) window, I can see the map and legend at the same time.
Title: Re: Arctic Maps
Post by: oren on July 28, 2019, 04:27:35 PM
Tor, some of Ossifrage's islands are north of the edge of the map you provided.
Title: Re: Arctic Maps
Post by: Espen on July 28, 2019, 07:20:41 PM
US Navy map:
Title: Re: Arctic Maps
Post by: Laurent on July 29, 2019, 07:48:20 PM
Thank you Ossifrage,
I did added the name into the meta data, i find it more practical to have only one file to manage. Just open the image with the usual viewer, display file>"property">metadata
it should works...
Title: Re: Arctic Maps
Post by: uniquorn on August 02, 2019, 01:29:54 PM
Lincoln Sea bathymetry  https://journals.plos.org/plosone/article/figure?id=10.1371/journal.pone.0122418.g001
edit: from binntho here https://forum.arctic-sea-ice.net/index.php/topic,2649.msg218428.html#msg218428
Title: Re: Arctic Maps
Post by: Tor Bejnar on August 03, 2019, 10:17:47 PM
another nice map of parts of the CAA, thanks to Petm (https://forum.arctic-sea-ice.net/index.php/topic,2591.msg218789.html#msg218789).  Click link (below image) for map in its own window.
(https://www.ec.gc.ca/glaces-ice/9A6E7D63-BEE0-4AF8-B072-E7B607CB16E3/ar_placenames_wa2_en.gif)
https://www.ec.gc.ca/glaces-ice/9A6E7D63-BEE0-4AF8-B072-E7B607CB16E3/ar_placenames_wa2_en.gif (https://www.ec.gc.ca/glaces-ice/9A6E7D63-BEE0-4AF8-B072-E7B607CB16E3/ar_placenames_wa2_en.gif)
Title: Re: Arctic Maps
Post by: petm on August 03, 2019, 10:31:17 PM
Thanks Tor, I hadn't seen this thread. Lots of nice maps here!

In addition to the Western Arctic map you posted, links to the the one for the Eastern Canadian Arctic (and others) can be found here:

https://www.canada.ca/en/environment-climate-change/services/ice-forecasts-observations/latest-conditions/products-guides/list-maps-place-names.html

(https://www.canada.ca/content/dam/eccc/migration/main/glaces-ice/F6813F93-DC86-4D63-9ED7-219E0DA2169F/ar_placenames_ea_en.gif)
https://www.canada.ca/content/dam/eccc/migration/main/glaces-ice/F6813F93-DC86-4D63-9ED7-219E0DA2169F/ar_placenames_ea_en.gif
Title: Re: Arctic Maps
Post by: uniquorn on August 05, 2019, 03:17:52 PM
here's my contribution from noaa. If you look carefully you can probably see the joins. If anyone knows how to show 34m contour let me know
https://www.gmrt.org/GMRTMapTool/np/ has a quicker interface (for me) but still no colour scale. Point and click for depth
Title: Re: Arctic Maps
Post by: Tor Bejnar on August 17, 2019, 05:30:34 PM
from here (https://forum.arctic-sea-ice.net/index.php/topic,2591.msg222754.html#msg222754), thanks to gerontocrat.

(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=2591.0;attach=130456;image)
Title: Re: Arctic Maps
Post by: uniquorn on September 03, 2019, 08:33:24 PM
From aslan here (https://forum.arctic-sea-ice.net/index.php/topic,2839.msg226504.html#msg226504)

Evaluation and control mechanisms of volume and freshwater export through the Canadian Arctic Archipelago in a high-resolution pan-Arctic ice-ocean model
Timothy McGeehan1and Wieslaw Maslowski1
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011JC007261
Title: Re: Arctic Maps
Post by: gerontocrat on October 21, 2019, 05:51:00 PM
Big Arctic Bathymetry map found on NOAA @ https://www.ngdc.noaa.gov/mgg/bathymetry/arctic/images/ibcaoposter.pdf