Questions tagged [arctic]

For questions pertaining to land and waters above 60 degrees North.

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11
votes
1answer
107 views

Why is there a bend in the Lomonosov Ridge?

Why is there a bend in the Lomonosov Ridge? This is a supplementary question to that asked by Sabre Tooth in What is the tectonic explanation for parallel ridges in the Arctic ocean
10
votes
2answers
753 views

Can the Bering Sea Rule be used to predict the weather?

Recently, a colleague explained that the recent cold spell in the eastern United States could have been predicted using the Bering Sea Rule. The idea is that 17-21 days after a storm appears in the ...
8
votes
2answers
620 views

Will global warming lead to agriculture in the Arctic?

From what I understand, global warming will make growing food a lot harder in areas like the American Midwest because temperatures will become too high for most crops. At the same time, Arctic (and ...
7
votes
1answer
66 views

How much of arctic ice is from snow fall versus frozen sea water?

How much of arctic ice is from snow fall versus frozen sea water? I presume arctic ice comes from both sources. Is there a way to tell how the ice was formed? In other words, if you made a core ...
7
votes
1answer
99 views

Is the Arctic ice dissapearing faster than IPCC models say?

Are observations of Arctic sea ice in accord with what the IPCC forecasts says they should be? And as such is the ice reducing in an exponential or linear way? For instance, from https://www....
7
votes
1answer
94 views

What is the geochemical source for the helium detected in deep Arctic explosive eruptions?

Recently, there has been explosive deep-ocean volcanism detected along the slowly-spreading Gakkel Ridge in the Arctic Ocean (see map below), according the National Geographic news article Arctic ...
6
votes
2answers
314 views

What is the relevance of Arctic coastal erosion to the Earth's climate?

Due to global warming and Arctic amplification, Northern Hemispheric permafrost is thawing and becoming a source of carbon and many greenhouse gases, which then positively feedback to global warming ...
6
votes
1answer
208 views

What is the mechanism for deep-sea volcanism of the Gakkel Ridge in the Arctic?

Related to an earlier question, What is the geochemical source for the helium detected in deep Arctic explosive eruptions?, where it is stated in the linked article that there is evidence of explosive ...
6
votes
2answers
78 views

Observations of sea ice typology in the Arctic

What are the main datasets characterizing sea ice typology, thickness, density, "passability", presence of pressure ridges in the Arctic? Is it something that can be detected from the air or a space ...
5
votes
1answer
388 views

What is the tectonic explanation for parallel ridges in the Arctic Ocean?

Looking at a map of the underwater features of the Arctic Ocean reveals three roughly parallel ridges, separated by basins (see image below): Image source The three ridges, as labelled are the Alpha ...
4
votes
1answer
49 views

Is the Arctic already ice-free during summer?

Not an expert in this field but I'm just curious as to how accurate the Google Map is here Also, from the interview with scientist Peter Wadhams, his estimate seems to be spot-on. I still remember, ...
4
votes
0answers
450 views

Does the Labrador current affect North Atlantic climate?

This summer has seen very low sea surface temperature anomalies in the North Atlantic. Using animations of these over the last year I feel the runoff of freshwater from Hudson Bay, into the Labrador ...
4
votes
0answers
54 views

Weekly atmospheric or oceanic oscillation within Arctic region

I'm in the middle of writing my Master's thesis. I've analyzed Ocean Bottom Pressure (OBP) signals derived from observations by the GRACE satellites.These observations are able to reproduce sub-...
3
votes
2answers
152 views

Implications of recent 36 degrees Fahrenheit (20C) anomaly at North Pole?

This extreme difference from normal -- could it occur in climates that are warmer, making some places unlivable? Additionally, is there a reason why extremely cold places should expect to have ...
3
votes
1answer
71 views

Simple way to understand these narrow frequency peaks in recently published “ice shelf singing”?

The Earther.Gizmodo.com article Scientists Discover a Weird Noise Coming From Antarctic Ice Shelf links to the American Geophysical Union video (an more importantly audio) (AGU) This is what an ...
2
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0answers
31 views

What are the impacts of pollutants from North America and elsewhere on Arctic wildlife?

What are the impacts of pollutants from North America and elsewhere on Arctic wildlife?
1
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0answers
19 views

less albedo feedback under high (BAU) emissions?

i've recently read Climate policy implications of nonlinear decline of Arctic land permafrost and other cryosphere elements https://www.nature.com/articles/s41467-019-09863-x the study estimates the ...
-2
votes
1answer
88 views

Antarctica Exploration [closed]

Which parts of Antarctica are unexplored? What about the underwater world of Antarctica? Specifically, what information do we have about it? What is so interesting about exploring Antarctica when ...