CIMSS-NOAA Weekly Report [ Archive ]

CIMSS-NOAA WEEKLY HIGHLIGHTS FOR THE WEEK ENDING NOVEMBER 29, 2024

DATA, INFORMATION, AND USE-INSPIRED SCIENCE:

CIMSS Reports to CWG on GOES-19 Co-Registration: Researchers at the University of Wisconsin-Madison Cooperative Institute for Meteorological Satellite Studies (CIMSS) reported to the GOES-R Calibration Working Group (CWG) and presented findings on November 22 regarding GOES-19 co-registration errors. GOES-19 had subtle co-registration errors between bands on different focal plane arrays that were negatively impacting the volcanic ash detection algorithm (causing false positive detections). On November 14, 2024 a correction for this error was implemented and co-registration errors immediately went away. GOES-19 is undergoing post-launch testing, not being used operationally, and algorithm developers are testing the data for operational readiness ahead of an anticipated operational date in spring 2025. (M. Gunshor, CIMSS, 608-263-1146)

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Figure: ABI volcanic ash RGB composite images shown before (left) and after (right) a correction to GOES-19 co-registration errors at 20:55 UTC on November 14, 2024 that were evident especially along cloud edges in GOES-19 (bottom) compared to GOES-16 (top).

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Updates to the CIMSS Satellite Blog: The Cooperative Institute for Meteorological Satellite Studies (CIMSS) Satellite Blog (https://cimss.ssec.wisc.edu/satellite-blog) was updated with the following case studies that show the beauty and the utility of Satellite Imagery: New fissure eruption between Stóra-Skógfell and Sýlingarfell on Iceland’s Reykjanes Peninsula (https://cimss.ssec.wisc.edu/satellite-blog/archives/61845); GOES-18 Level 2 Products over American Samoa (https://cimss.ssec.wisc.edu/satellite-blog/archives/61848); Lake effect clouds (producing light snow) in North Dakota (https://cimss.ssec.wisc.edu/satellite-blog/archives/61872). (S. Bachmeier, S. Lindstrom, CIMSS, 608 263 4425) 

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Figure: GOES-19 (Preliminary, Non-Operational) Day Cloud Phase Distinction image showing non-glaciated clouds down wind of Lake Sakakawea, 1601 UTC on 25 November 2024.

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