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Messages - ms

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1
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: November 08, 2019, 05:03:49 PM »
It seems that the Greenland Ice sheet was reacting very quickly to changes during last glacial.

Quote
Abstract

Although geological and modelling evidence indicate that the last glacial inception in North America was in NE Canada, little is known about the glacial response of the nearby western Greenland Ice Sheet (GIS) during the glacial advance of marine oxygen isotope stage 4 (MIS4). Our multi-proxy study of a marine sediment core collected about 60 km southwest of the Outer Hellefisk Moraines demonstrates that in the southern Davis Strait region the most extreme Greenland shelf glaciation of the last glacial cycle occurred during MIS 4, with another prominent glacial advance at 37–33 kyr BP. During those periods the GIS likely reached the Outer Hellefisk Moraines in this area. Except for these two periods, our data suggest significant advection of relatively warm Irminger Sea Water by the West Greenland Current since MIS 4. This advection likely limited the extent of the MIS2 glaciation on the SW Greenland shelf. Decreased precipitation over southwestern Greenland predicted by atmospheric models as a downstream effect of a much larger MIS2 Laurentide Ice Sheet may have played an additional role.


https://www.nature.com/articles/s41598-019-51983-3

and
https://videnskab.dk/naturvidenskab/groenlands-indlandsis-kan-reagere-hurtigt-og-uventet-paa-klimaforandringer
(popular version in Danish)

2
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: July 08, 2019, 08:05:19 PM »
The rock dust from Greenlands glaiciers might even have a better use
http://sciencenordic.com/can-greenlandic-mud-help-feed-world
- research is on-going.

3
Greenland and Arctic Circle / Re: Greenland 2019 Melt Season
« on: May 03, 2019, 08:24:11 PM »
DMI should declare 'open season' on the melting season tomorrow as their criteria for 5% or greater melt extent for three consecutive days is all but assured to be met.

They heard you  :)
https://www.dmi.dk/?id=1042 (in danish)
http://polarportal.dk/en/news/news/greenland-melt-season-officially-starts-almost-a-month-early/
(in english)

4
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: December 15, 2017, 08:17:37 PM »
New paper from a danish/greenlandish team: Abrupt shift in the observed runoff from the southwestern Greenland ice sheet

From the abstract: "We present for the first time a 40-year (1975–2014) time series of observed meltwater discharge from a >6500-km2 catchment of the southwestern Greenland ice sheet. We find that an abrupt 80% increase in runoff occurring between the 1976–2002 and 2003–2014 periods is due to a shift in atmospheric circulation..."

http://advances.sciencemag.org/content/3/12/e1701169

Two articles in danish about the project:
https://www.dr.dk/nyheder/viden/miljoe/40-aars-maalinger-det-gik-allerede-galt-med-indlandsisen-i-2003
http://www.geus.dk/cgi-bin/webbasen_nyt.pl?id=1513242866&cgifunction=form

5
More details about the land slide and the risk of another slide here:
https://ing.dk/artikel/geus-overhaengende-risiko-nyt-fjeldskred-groenland-200633
(in danish)

6
Arctic sea ice / Re: I'm updating the ASIG next week. Any tips?
« on: January 14, 2017, 03:43:58 PM »
Thankyou for the new look of the graphs pages.

It looks like Wipneus' global sea ice area graph is updating automatically, but the global sea ice extent is not updating. It would be nice to have both update.

7
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: September 05, 2016, 04:23:12 PM »
The danish professor of geology Minik Rosing, who has been studying the specific area for years is very sceptical of their findings.
http://videnskab.dk/naturvidenskab/forskere-verdens-aeldste-fossiler-er-fundet-i-groenland
( in danish)
He is not convinced that the formations they found are a sign of life. But he does agree that the area has signs of early life ( http://science.sciencemag.org/content/283/5402/674 )

8
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: February 03, 2016, 05:55:09 PM »
I just saw this news (in danish).
http://videnskab.dk/miljo-naturvidenskab/oprab-til-alle-laenestolsforskere-esa-frigiver-satellitdata-over-gronland


A call to armchair-scientists, that ESA has launched a new home-page with data on the Greenland Ice sheet.

http://esa-icesheets-cci.org/

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