After an outage of about a week brought on by an anomaly in NOAA-20 (since fixed), NUCAPS profiles have re-appeared in AWIPS workstations, starting with the 1713 UTC overpass over the Eastern United States, shown above. One use for NUCAPS is to gauge how well a forecast is evolving. For... Read More
From 1500 to 1900 UTC on 4 January 2024, GOES-16 was in Mode 4 (vs. the usual Mode 6) operations. Mode 4 scanning produces a full-disk image every 5 minutes. Mesoscale sectors and CONUS sectors are not scanned (although a CONUS sector can of course be subsected out of the... Read More
The animation of GOES-17 visible imagery (Band 2, 0.64 µm), above, (created at the CSPP Geosphere site) shows the characteristic signal of Sun Glint — the moving bright region. Sun glint (also discussed on this blog here, here, here, here and — for moonglint: here!) occurs when radiation from the Sun reflects... Read More
GOES-18 images shown in this blog post are preliminary and non-operational During its Post-Launch Testing (PLT) period, once GOES-18 drifted to a position close to its final “Operational GOES-West” longitude of 137º W, a “Barcode Artifact” of vertical striping was occasionally seen in colder scenes of Band 07 Shortwave Infrared (3.9 µm)... Read More
