{"id":48916,"date":"2022-11-24T18:29:59","date_gmt":"2022-11-24T18:29:59","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=48916"},"modified":"2022-11-29T19:23:11","modified_gmt":"2022-11-29T19:23:11","slug":"sar-data-over-guam-part-x","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/48916","title":{"rendered":"SAR Data over Guam (part X)"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1005\" height=\"841\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/HimarwariBand13_and_SARWinds_0-30_-20221124_0830toggle.gif\" alt=\"\" class=\"wp-image-48917\"\/><figcaption class=\"wp-element-caption\">Himawari-8 Band 13 Clean Window Infrared (10.4) imagery and SAR winds (color-enhanced from 0-30 knots) from RADARSAT-2, 0830 UTC on 24 November 2022 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>The 10th and final special RADARSAT-2 data collection of SAR winds over the Guam Area of Responsibility (AOR) occurred on 24 November, and is shown above in a toggle with the Himawari-8 Clean Window imagery at the same time (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/HimarwariBand13_and_SARWinds_BeaufortScale-20221124_0830toggle.gif\">Here<\/a> is the same toggle as above but with SAR data enhanced with a Beaufort Scaling, from 0-125 knots).  Of note in this image is the feature with strong winds &#8212; up to 30 knots &#8212; to the west of Guam (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/SARWindsZoom_0-30_-20221124_083020.png\">Here&#8217;s a zoomed-in view<\/a>). The curved westward edge suggests some type of outflow boundary perhaps, and the Himawari-8 imagery does show convection just to the east.  Many people would be hard pressed to predict the distribution of winds in the SAR field below from the Himawari-8 imagery!  The strongest winds are in a region centered on Rota &#8212; the island just northeast of Guam.  It&#8217;s hard to see why that is based on the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/HimarwariBand13-20221124_083020.png\">Himawari-8 Clean Window image<\/a>.  The arc of stronger winds from north-northwest of Guam is (at least) associated with clouds, albeit clouds with warm brightness temperatures.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1005\" height=\"841\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/HimarwariBand13_SARWinds_0-30_-20221124_083020.png\" alt=\"\" class=\"wp-image-48920\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/HimarwariBand13_SARWinds_0-30_-20221124_083020.png 1005w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/HimarwariBand13_SARWinds_0-30_-20221124_083020-300x251.png 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/HimarwariBand13_SARWinds_0-30_-20221124_083020-768x643.png 768w\" sizes=\"auto, (max-width: 1005px) 100vw, 1005px\" \/><figcaption class=\"wp-element-caption\">Himawari-8 Band 13 Clean Window Infrared (10.4) imagery overlain with SAR winds (color-enhanced from 0-30 knots) from RADARSAT-2, 0830 UTC on 24 November 2022 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>Careful inspection of the imagery above (or the <a href=\"https:\/\/www.star.nesdis.noaa.gov\/socd\/mecb\/sar\/AKDEMO_products\/APL_winds\/wind_images_nic\/2022-11\/RSAT2_GSS_2022_11_24_08_27_18_0722593638_145.51E_13.66N_VV_C_nrcs.png\">Normalized Radar Cross Section<\/a> imagery <a href=\"https:\/\/www.star.nesdis.noaa.gov\/socd\/mecb\/sar\/AKDEMO_products\/APL_winds\/wind_images_nic\/sarwinds_daily_now.html?date=20221124\">available at this site<\/a>), shows that the ships are back offshore of Saipan!  They are apparent in the zoomed-in image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1005\" height=\"841\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/SARWindsZoomSaipan_0-30_-20221124_083020.png\" alt=\"\" class=\"wp-image-48923\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/SARWindsZoomSaipan_0-30_-20221124_083020.png 1005w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/SARWindsZoomSaipan_0-30_-20221124_083020-300x251.png 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/11\/SARWindsZoomSaipan_0-30_-20221124_083020-768x643.png 768w\" sizes=\"auto, (max-width: 1005px) 100vw, 1005px\" \/><figcaption class=\"wp-element-caption\">SAR winds (color-enhanced from 0-30 knots) from RADARSAT-2, 0830 UTC on 24 November 2022 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Thanks to the SAR people at NOAA\/STAR for supporting these special SAR data collections near Guam!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The 10th and final special RADARSAT-2 data collection of SAR winds over the Guam Area of Responsibility (AOR) occurred on 24 November, and is shown above in a toggle with the Himawari-8 Clean Window imagery at the same time (Here is the same toggle as above but with SAR data enhanced with a Beaufort Scaling, [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":48920,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[62,104],"tags":[],"class_list":["post-48916","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-himawari-8","category-sar"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/48916","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=48916"}],"version-history":[{"count":2,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/48916\/revisions"}],"predecessor-version":[{"id":48924,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/48916\/revisions\/48924"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/48920"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=48916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=48916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=48916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}