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312 points trauco | 1 comments | | HN request time: 0.202s | source
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mensetmanusman ◴[] No.44415252[source]
NOAA-20 is better and will still be available.

Also from NOAA: “Noaa said they would not affect the quality of forecasting.”

Decommissioning old sensors?

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garrettdreyfus ◴[] No.44419569[source]
https://michaelrlowry.substack.com/p/critical-hurricane-fore...

“The ATMS sounder that remains is far inferior to hurricane forecasters than the SSMIS instrument the Department of Defense is discontinuing. Unlike the SSMIS which scans at a continuous resolution, the quality of the ATMS degrades considerably on its edges, rendering the sounder useless for most operational hurricane forecasts. The example below shows the difference between the scans from both instruments for Hurricane Erick last Wednesday, June 18th.”

There is also a useful figure included.

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1. s1artibartfast ◴[] No.44426753[source]
This figure is laterally an edge case. NOAA-21 images the earth twice a day with higher resolution