NOAA GOES Image Viewer website
20 Oct 2020 - 08:18 EDT
20 Oct 2020 - 12:18 UTC

GOES-West PACUS - Nighttime Microphysics*

1 hour loop - 12 images - 5 minute update

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Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 0945 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 0945 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1000 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1000 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1015 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1015 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1030 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1030 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1045 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1045 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1100 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1100 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1115 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1115 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1130 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1130 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1145 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1145 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1201 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1201 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1206 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1206 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1211 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 20 Oct 2020 - 1211 UTC
 

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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