tag:blogger.com,1999:blog-3046701423623795423.post7419065090911610104..comments2024-03-25T04:43:08.153-07:00Comments on Arctic News: CryoSatSam Caranahttp://www.blogger.com/profile/12376449209858411775noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-3046701423623795423.post-3570933191304344202012-08-19T04:40:27.303-07:002012-08-19T04:40:27.303-07:00Thanks for commenting, Seymour. The article in the...Thanks for commenting, Seymour. The <a href="http://www.guardian.co.uk/environment/2012/aug/11/arctic-sea-ice-vanishing" rel="nofollow">article in the Guardian</a> says that CryoSat data indicate that sea ice volume in 2004 was ~13,000 cubic km, while "<i>in 2012, there is 7,000 cubic km</i>". The article does also mention Peter Wadhams, adding that, compared to 30 years ago, summer sea ice has lost ~70% of volume. PIOMAS staff mention a <a href="http://www.realclimate.org/index.php/archives/2012/04/arctic-sea-ice-volume-piomas-prediction-and-the-perils-of-extrapolation/" rel="nofollow">75% reduction in September volume from 1979 to 2011</a>. <br /><br />PIOMAS data show a 2011 minimum of 4,000 cubic km. Some projections for 2012, based on PIOMAS data, point at a 3,000 cubic km minimum. You say volume was 7,000 cubic km in 2012, Seymour. What month in 2012 does your figure apply to? What do you think will the minimum be for 2012?Sam Caranahttps://www.blogger.com/profile/12376449209858411775noreply@blogger.comtag:blogger.com,1999:blog-3046701423623795423.post-9312335763777729762012-08-19T04:13:06.043-07:002012-08-19T04:13:06.043-07:00'John Nissen, Chair of the Arctic Methane Emer...'John Nissen, Chair of the Arctic Methane Emergency Group (AMEG), comments: "Dr Laxon failed to mention the data on sea ice thickness that has been collected over many years by sea ice expert Professor Peter Wadhams of the University of Cambridge'<br /><br />The original Observer Article on this story (http://www.guardian.co.uk/environment/2012/aug/11/arctic-sea-ice-vanishing) makes explicit reference to Wadhams work with submarines and their relevance to volume changes over a longer period...Seymourhttps://www.blogger.com/profile/08131287661852847892noreply@blogger.comtag:blogger.com,1999:blog-3046701423623795423.post-37281075780051575922012-08-17T04:41:46.913-07:002012-08-17T04:41:46.913-07:00You are correct, Ben, I've amended the post...You are correct, Ben, I've amended the post's text to clear up confusion about that. Your site gives an excellent overview of <a href="https://sites.google.com/site/apocalypse4real/home/sea-ice-concentration-and-thickness-comparison" rel="nofollow">recent changes in sea ice concentration and thickness</a>. Let me know if you hear more on how CrySat compares with Godiva2 and PIOMAS, or any further relevant news.Sam Caranahttps://www.blogger.com/profile/12376449209858411775noreply@blogger.comtag:blogger.com,1999:blog-3046701423623795423.post-31360423952781170762012-08-17T03:47:35.890-07:002012-08-17T03:47:35.890-07:00Hi Sam,
The Godiva2 data comes from the GHRSST da...Hi Sam,<br /><br />The Godiva2 data comes from the GHRSST data, if it is coming from CRYOSAT, can you give me a source? I have been posting Godiva2 data for a few weeks on my website.<br /><br />https://sites.google.com/site/apocalypse4real/<br />Apocalypse4Realhttps://www.blogger.com/profile/13789600722271701780noreply@blogger.com