{"id":306,"date":"2023-03-15T06:05:57","date_gmt":"2023-03-15T06:05:57","guid":{"rendered":"https:\/\/arcticwatch.info\/index.php\/2023\/03\/15\/the-2023-maximum-arctic-sea-ice-extent\/"},"modified":"2023-04-15T17:43:49","modified_gmt":"2023-04-15T17:43:49","slug":"the-2023-maximum-arctic-sea-ice-extent","status":"publish","type":"post","link":"https:\/\/arcticwatch.info\/index.php\/2023\/03\/15\/the-2023-maximum-arctic-sea-ice-extent\/","title":{"rendered":"The 2023 Maximum Arctic Sea Ice Extent"},"content":{"rendered":"
\n

March has arrived, so it\u2019s time to start taking a serious look at where and when the 2023 maximum Arctic sea ice extent will occur.<\/p>\n

To start with here\u2019s Zack Labe\u2019s overview<\/a> of previous years\u2019 maxima:<\/p>\n

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

Zack\u2019s graph displays the JAXA\/ViSHOP<\/a> version of Arctic extent, so here too is JAXA\u2019s own graph of the current sea ice extent:<\/p>\n

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

It doesn\u2019t look as though the 2023 maximum has been achieved yet, but extent on March 1st was 14.01 million km\u00b2. That is evidently not going to be the lowest in the satellite era!<\/p>\n

<\/a>[Edit \u2013 March 8th]<\/strong><\/p>\n

As Tom has already mentioned below, JAXA extent has declined significantly since the (so far!) peak extent of 14.12 million km\u00b2 on both the 2nd and 3rd of March:<\/p>\n

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

It\u2019s too soon to be certain of course, but we certainly now have a good candidate for the 2023 maximum JAXA extent.<\/p>\n

NSIDC 5 day averaged extent is still increasing, but let\u2019s see what this afternoon\u2019s update (UTC) reveals\u2026<\/p>\n

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

Which is a decrease of 0.001 million km\u00b2 from March 6th, leaving a current NSIDC maximum extent of 14.62 million km\u00b2!<\/p>\n

Finally, for the moment at least, AWI\u2019s \u201chigh resolution\u201d AMSR2 extent looks a lot less convincing than JAXA\u2019s:<\/p>\n

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

<\/a>[Edit \u2013 March 11th]<\/strong><\/p>\n

NSIDC Arctic sea ice extent took a tumble yesterday, so with only mild trepidation I\u2019m calling the 2023 maximum extent. In the case of the NSIDC\u2019s 5 day average metric that\u2019s still a rounded up 14.62 million km\u00b2 on March 6th:<\/p>\n

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

The JAXA\/ViSHOP maximum extent remains at 14.12 million km\u00b2 on March 2nd:<\/p>\n

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

The \u201chigh resolution\u201d AMSR2 based metric from AWI peaked at 14.24 million km\u00b2 on March 5th:<\/p>\n

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

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

March has arrived, so it\u2019s time to start taking a serious look at where and when the 2023 maximum Arctic sea ice extent will occur. To start with here\u2019s Zack Labe\u2019s overview of previous years\u2019 maxima: Zack\u2019s graph displays the…<\/p>\n","protected":false},"author":2,"featured_media":307,"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-306","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\/306","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=306"}],"version-history":[{"count":2,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/posts\/306\/revisions"}],"predecessor-version":[{"id":404,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/posts\/306\/revisions\/404"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/media\/307"}],"wp:attachment":[{"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/media?parent=306"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/categories?post=306"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arcticwatch.info\/index.php\/wp-json\/wp\/v2\/tags?post=306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}