Talk:GEOS-5 ADAS Radiance Monitoring: Difference between revisions

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end of MODIS winds
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* Noise levels for MetOp-C AMSU-A channel have been increasing with an accelerated rate since mid-2022.  In early October 2023 the number of rejected data for the channel increased significantly, with an increased number of missing values starting around 7 Oct 2023.  The rejected data increased until nearly all of the radiances for channel 4 in the operational stream were missing by 20 Oct. The missing radiances for channel 4 led to rejection of other channels (ch 5, 6) on the instrument.   
* Noise levels for MetOp-C AMSU-A channel have been increasing with an accelerated rate since mid-2022.  In early October 2023 the number of rejected data for the channel increased significantly, with an increased number of missing values starting around 7 Oct 2023.  The rejected data increased until nearly all of the radiances for channel 4 in the operational stream were missing by 20 Oct. The missing radiances for channel 4 led to rejection of other channels (ch 5, 6) on the instrument.   
* Due to the large number of rejections, Channels 4,5, and 6 were turned off in FP and in GEOSIT as of 20231020 12UTC.  Shortly after that date (24 Oct) the radiance processing was modified and channel 4 data resumed (albeit noisy).  Ch 4,5,6 remain turned off for MetOp-C AMSUA.
* Due to the large number of rejections, Channels 4,5, and 6 were turned off in FP and in GEOSIT as of 20231020 12UTC.  Shortly after that date (24 Oct) the radiance processing was modified and channel 4 data resumed (albeit noisy).  Ch 4,5,6 remain turned off for MetOp-C AMSUA.
== ESPC Legacy Products Retirement of MODIS Winds ==
*'''30 Jan 2024''' MODIS wind processing ended January 29 2024.  The last date with MODIS winds was 2024/01/29 12z.
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