NOAA GOES Image Viewer website
19 Oct 2021 - 23:57 EDT
20 Oct 2021 - 03:57 UTC

GOES-West - Sector view: Pacific Southwest - Nighttime Microphysics*

1 hour loop - 12 images - 5 minute update

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Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0256 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0256 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0301 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0301 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0306 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0306 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0311 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0311 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0316 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0316 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0321 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0321 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0326 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0326 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0331 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0331 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0336 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0336 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0341 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0341 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0346 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0346 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0351 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 20 Oct 2021 - 0351 UTC Latitude / Longitude grid
 

About Nighttime Microphysics

Nighttime Microphysics RGB The distinction between low clouds and fog in satellite imagery is challenging. While the difference between the 10.4 and 3.9 μm channels has been a regularly applied product to meet aviation forecast needs, the Nighttime Microphysics (NtMicro) RGB adds another channel difference (12.4- 10.4 μm) as a proxy to cloud thickness and repeats the use of the 10.4 μm thermal channel to enhance areas of warm (i.e. low) clouds where fog is more likely. The NtMicro RGB is also an efficient tool to quickly identify other cloud types in the mid and upper atmosphere.

• For more details, see the Nighttime Microphysics RGB Quick Guide, (PDF, 1.41 MB)

*GOES-17 Infrared Image Quality

During post-launch testing of the GOES-17 ABI instrument, an issue with the instrument's cooling system was discovered. The loop heat pipe (LHP) subsystem, which transfers heat from the ABI electronics to the radiator, is not operating at its designed capacity. The consequence of this is that the ABI detectors cannot be maintained at their intended temperatures under certain orbital conditions. This is preventing adequate cooling for some of the infrared (IR) channels on the instrument during parts of the night, leading to partial loss of ABI imagery. Learn more.

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