{"id":3128,"date":"2025-06-13T18:03:58","date_gmt":"2025-06-13T16:03:58","guid":{"rendered":"https:\/\/arcticwatch.info\/index.php\/2025\/06\/13\/facts-about-the-arctic-in-june-2025\/"},"modified":"2025-06-16T21:47:59","modified_gmt":"2025-06-16T19:47:59","slug":"facts-about-the-arctic-in-june-2025","status":"publish","type":"post","link":"https:\/\/arcticwatch.info\/index.php\/2025\/06\/13\/facts-about-the-arctic-in-june-2025\/","title":{"rendered":"Facts About the Arctic in June 2025"},"content":{"rendered":"
\n

I\u2019ve been away on a \u201croad trip\u201d during the first part of June, so this month\u2019s initial update is a trifle tardy.<\/p>\n

After a 100k \u201cbreak\u201d yesterday JAXA\/ViSHOP extent is currently in a tie with 2024 for 4th lowest for the date, and still slightly below 2012.<\/p>\n

\"\"<\/a><\/figure>\n

The PIOMAS sea ice thickness<\/a> map\u00a0for May 31st continues to show plenty of thick ice in the Beaufort and Chukchi Seas:<\/p>\n

\"\"<\/a><\/figure>\n

However, the associated volume graph shows the 2025 curve only slightly above the previous low for the date in 2017:<\/p>\n

\"\"<\/a><\/figure>\n

I have received a disturbing email from the NSIDC, which reads as follows:<\/p>\n

Recent delivery from the US Navy of the SSMIS passive microwave data that the CDR sea ice product uses has become more sporadic. The Defense Department has informed NSIDC that they will reduce the priority of processing SSMIS data, resulting in likely daily data gaps.<\/p>\n

Due to aging SSMIS sensors, NSIDC has already begun exploring alternative sensors, which led to incorporating the JAXA Advanced Microwave Scanning Radiometer 2 (AMSR2) prototype sea ice concentration in our latest version. Users may wish to begin utilizing those AMSR2 data as the SSMIS portion continues to degrade. As documented in NSIDC Special Report #27<\/a>, the SSMIS-using CDR and its AMSR2 corollary are not yet fully intercalibrated. Users will see differences between the products, as AMSR2\u2019s higher resolution provides better ice edge detection than SSMIS. We are developing a new version that will intercalibrate these sensors, though this will take time. We apologize for any inconvenience and appreciate your patience during this transition.<\/p><\/blockquote>\n

I clicked the link to read the special report, only to discover that the entire NSIDC web site is out of action this evening. Hopefully it will be back in action soon.<\/p>\n

<\/a>[Update \u2013 June 13th]<\/strong><\/p>\n

I tried clicking the NSIDC\u2019s link to Special Report 27 again today, and thankfully it is now working! It contains much more information than this, but here are the NSIDC\u2019s comparisons between SSMIS and AMSR2 data for the months of March and September:<\/p>\n

\"\"<\/a><\/figure>\n
\"\"<\/a><\/figure>\n

Watch this space!<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

After a 100k \u201cbreak\u201d yesterday JAXA\/ViSHOP extent is currently in a tie with 2024 for 4th lowest for the date, and still slightly below 2012.<\/p>\n","protected":false},"author":2,"featured_media":3129,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3128","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analysis"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/posts\/3128","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/comments?post=3128"}],"version-history":[{"count":1,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/posts\/3128\/revisions"}],"predecessor-version":[{"id":3139,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/posts\/3128\/revisions\/3139"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/media\/3129"}],"wp:attachment":[{"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/media?parent=3128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/categories?post=3128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/tags?post=3128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}