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).
New Polar Portal with Sea Ice Temperatures(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)
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!)]
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 It contains a selection of material obtained from hundreds of published and unpublished documents produced by explorers, ethnographers and other visitors who were in contact with Inuit during the early contact period or shortly before Inuit moved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.
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.
Air temperature anomalyand click on the "here (http://sites.google.com/site/arcticseaicegraphs/forecasts2)" link to see actual temperatures.
click here (http://sites.google.com/site/arcticseaicegraphs/forecasts2) to see actual surface air temperatures
Hi Neven, ...Neven replied:
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)
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)
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)
...
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.
#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).
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
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
And here is a very useful topographic map with glacier names etc.:
http://toposvalbard.npolar.no/ (http://toposvalbard.npolar.no/)
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.
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.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.
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.
Terry,
Those billboards were from the Heartland Institute, I recall, but your point is well taken.
Let there be maps....It will be nice to see actual maps some day!
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 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.
Zoe Della Vedovahttps://youtu.be/Bp5w4HjoaJM (https://youtu.be/Bp5w4HjoaJM)
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:
epiphyte: definitely unprecedented in recorded history.(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)
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.
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.
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)
'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.
...(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)
Here is a map of the Western Arctic region displayed ...
maps, more maps, I want more Arctic maps... (I'm writing for the thread, not my insatiable appetite.)...(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)
Here is a map of the Western Arctic region displayed ...
cross post:Has the limestone gone dolomitic? Memories of breaking my hands and heart breaking up some of it in the Forest of Dean, England.
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.)
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.
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: "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:QuoteResearchers 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:QuoteProduced 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
The Boundaries of the Arctic Ocean Seas.(https://forum.arctic-sea-ice.net/index.php?action=dlattach;topic=143.0;attach=100196;image)
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?
I think this is the NSIDC regions map.
(https://nsidc.org/sites/nsidc.org/files/images/data/masie/landmask_with_regions_countries.png)
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.
Thank you Anne. The article was fascinating. And maps are maps, so it wasn't 'off topic'!
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
PS:Thanks for the resource, BBR
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).
Where will all the snowmelt go?
(https://upload.wikimedia.org/wikipedia/commons/1/15/NorthAmerica-WaterDivides.png)
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!Go to the map and look at it enlarged. (Screen prints are at 25% and 400%, just for a taste.)
Does Espen have an opinion?
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)
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.
Does this work? This is published by NOAA. (so maybe not) Any way, here goes: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 coastI 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
Canadian Arctic Archipelago (CAA) map with many islands and waterways named.
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 knowhttps://www.gmrt.org/GMRTMapTool/np/ has a quicker interface (for me) but still no colour scale. Point and click for depth
Here's a map of Antarctica. Getz is about midway between PIG-Thwaites and Ross. (I had to look it up).
(https://upload.wikimedia.org/wikipedia/commons/thumb/8/88/Antarctic_ice_shelves.png/1024px-Antarctic_ice_shelves.png)
from Wikipedia (https://en.wikipedia.org/wiki/Greenland):QuoteThe total area of Greenland is 2,166,086 km2 (836,330 sq mi) (including other offshore minor islands), of which the Greenland ice sheet covers 1,755,637 km2 (677,855 sq mi) (81%) and has a volume of approximately 2,850,000 km3 (680,000 cu mi).
image from https://www.flickr.com/photos/66103993@N00/130597590 (click to enlarge a little)