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gerontocrat

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Re: Arctic Maps
« Reply #100 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.
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

uniquorn

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Re: Arctic Maps
« Reply #101 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 ;)

oren

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Re: Arctic Maps
« Reply #102 on: June 19, 2019, 08:13:43 AM »
The various routes of the Northwest Passage, with thanks to Jim Hunt.


gerontocrat

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Re: Arctic Maps
« Reply #103 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
« Last Edit: July 22, 2019, 05:34:13 PM by gerontocrat »
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

Tor Bejnar

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Re: Arctic Maps
« Reply #104 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
download map
PDF version

Here's the Wrangle Island area.
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uniquorn

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Re: Arctic Maps
« Reply #105 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)

Tor Bejnar

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Re: Arctic Maps
« Reply #106 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.
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Tor Bejnar

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Re: Arctic Maps
« Reply #107 on: July 22, 2019, 06:23:58 PM »
Just having a look at the East Siberian Sea (ESS) bathymetry from ARCGIS.  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.
« Last Edit: July 22, 2019, 06:32:25 PM by Tor Bejnar »
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uniquorn

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Re: Arctic Maps
« Reply #108 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)

uniquorn

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Re: Arctic Maps
« Reply #109 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

johnm33

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Re: Arctic Maps
« Reply #110 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.



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.

johnm33

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Re: Arctic Maps
« Reply #111 on: July 22, 2019, 08:33:57 PM »
plus


mitch

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Re: Arctic Maps
« Reply #112 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.

uniquorn

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Re: Arctic Maps
« Reply #113 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.
« Last Edit: July 22, 2019, 09:16:32 PM by uniquorn »

Tor Bejnar

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Re: Arctic Maps
« Reply #114 on: July 26, 2019, 05:17:17 PM »
Canadian Arctic Archipelago (CAA) map with many islands and waterways named.
[reference: Wikipedia]
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SteveMDFP

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Re: Arctic Maps
« Reply #115 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.

Ossifrage

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Re: Arctic Maps
« Reply #116 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




Tor Bejnar

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Re: Arctic Maps
« Reply #117 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.
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oren

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Re: Arctic Maps
« Reply #118 on: July 28, 2019, 04:27:35 PM »
Tor, some of Ossifrage's islands are north of the edge of the map you provided.

Espen

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Re: Arctic Maps
« Reply #119 on: July 28, 2019, 07:20:41 PM »
US Navy map:
Have a ice day!

Laurent

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Re: Arctic Maps
« Reply #120 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...

uniquorn

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Re: Arctic Maps
« Reply #121 on: August 02, 2019, 01:29:54 PM »
« Last Edit: August 03, 2019, 10:24:01 PM by uniquorn »

Tor Bejnar

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Re: Arctic Maps
« Reply #122 on: August 03, 2019, 10:17:47 PM »
another nice map of parts of the CAA, thanks to Petm.  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
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petm

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Re: Arctic Maps
« Reply #123 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

uniquorn

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Re: Arctic Maps
« Reply #124 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

Tor Bejnar

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Re: Arctic Maps
« Reply #125 on: August 17, 2019, 05:30:34 PM »
from here, thanks to gerontocrat.

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uniquorn

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Re: Arctic Maps
« Reply #126 on: September 03, 2019, 08:33:24 PM »
From aslan here

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
« Last Edit: September 03, 2019, 08:57:17 PM by uniquorn »

gerontocrat

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Re: Arctic Maps
« Reply #127 on: October 21, 2019, 05:51:00 PM »
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)