LithiaWx Posted September 16, 2013 Author Share Posted September 16, 2013 Decent mass gain rayon the GIS! Looks like about 2,500,000,000 tons Link to comment Share on other sites More sharing options...
TerryM Posted September 17, 2013 Share Posted September 17, 2013 Perhaps with this years melt behind us we'll have time for some study of the mechanism's at work. Everyone I assume is familiar with Dr. Box's and NASA's excellent sites. Another site that specifically addresses issues related to Nares Strait, Petermann Glacier and by extension the ice islands that have been spawned is Dr' Munchow's Icy Seas http://icyseas.org/author/muenchow/ A recent paper of his points to the increase by 15% to 30% in ice shelf velocity measured at the Petermann Glacier (links are at his page). Petermann drains ~4% of the GIS, but the huge calving events in 2010 and again in 2012 have made it almost a household word. Andreas has calculated that ~12Gt is lost through the Petermann Fjord each year with 5GT from basal melting. If one extrapolated the 12Gt annual loss as representing 4% of the ice sheet then 300Gt loss per year would be expected with 100Gt from basal melt. The limitations proposed for GIS's contribution might be understated if they aren't taking the extent of basal melting into account since most of the limitation is based of the amount of ice that could wind it's way to the sea. My nightmare is that much of the ice sheet simply melts back from the narrow fjords and flows off as water. It's also interesting that PII-2012 and PII-2010 were about equal in having a mass of ~18 Gt even though 2010 was much larger (and thinner). Terry Link to comment Share on other sites More sharing options...
Jonger Posted October 3, 2013 Share Posted October 3, 2013 Some -30C showing up over Greenland this coming weekend. Link to comment Share on other sites More sharing options...
PhillipS Posted October 4, 2013 Share Posted October 4, 2013 Here is the latest DMI Greenland Ice Sheet mass balance plot [source]: The GIS is still on track for a net loss of 350 - 375 Gtons for 2013 - though high precipitation during the remainder of the year could lower the net loss to around 300 Gtons and hgh calving could raise it closer to 400 Gtons. I think most people here know, but for those who don't, Glaciers and ice streams within ice sheets flow year-round though there can be a seasonal variation to the rate of flow. Here is a NASA animation of the GIS and its ice streams [link] Link to comment Share on other sites More sharing options...
Midlo Snow Maker Posted October 6, 2013 Share Posted October 6, 2013 Vodka cold at summit right now -47f Link to comment Share on other sites More sharing options...
tacoman25 Posted November 1, 2013 Share Posted November 1, 2013 How's the old island doing? Link to comment Share on other sites More sharing options...
LakeEffectKing Posted November 1, 2013 Share Posted November 1, 2013 How's the old island doing? I heard the corn crop this year was terrible.... Link to comment Share on other sites More sharing options...
tacoman25 Posted November 1, 2013 Share Posted November 1, 2013 I heard the corn crop this year was terrible.... How about grapes? I was really looking forward to some nice Greenland wine next year. Link to comment Share on other sites More sharing options...
LakeEffectKing Posted November 1, 2013 Share Posted November 1, 2013 How about grapes? I was really looking forward to some nice Greenland wine next year. According to some, you may only have to wait a couple more years to enjoy such pleasentries...while laying on the famed sandy beaches of southern Greenland, for that matter! Link to comment Share on other sites More sharing options...
CAD_Wedge_NC Posted November 2, 2013 Share Posted November 2, 2013 According to some, you may only have to wait a couple more years to enjoy such pleasentries...while laying on the famed sandy beaches of southern Greenland, for that matter! If you can stand the massive methane releases that will be coming up out of the ground all around you. Hope you are not a smoker. Link to comment Share on other sites More sharing options...
SVT450R Posted January 13, 2014 Share Posted January 13, 2014 Anyone know when GRACE mass balance updates if it's not already for 2013 melt season. Link to comment Share on other sites More sharing options...
The_Global_Warmer Posted January 13, 2014 Share Posted January 13, 2014 Anyone know when GRACE mass balance updates if it's not already for 2013 melt season. there was an issue with retrieving the August and September data. But through July it was much lower than 2010-2012. Link to comment Share on other sites More sharing options...
SVT450R Posted January 13, 2014 Share Posted January 13, 2014 there was an issue with retrieving the August and September data. But through July it was much lower than 2010-2012. Thanks for the info. Link to comment Share on other sites More sharing options...
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