NOAA GOES Image Viewer website
8 Oct 2024 - 09:04 EDT
8 Oct 2024 - 13:04 UTC

GOES-West - Sector view: Central Alaska - Tropospheric Dust Content

2 hour loop - 12 images - 10 minute update

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Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 0940 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 0940 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1000 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1000 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1010 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1010 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1050 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1050 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1100 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1100 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1110 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1110 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1130 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1130 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1140 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1140 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1150 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1150 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1200 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1200 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1220 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1220 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1240 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 08 Oct 2024 - 1240 UTC Latitude / Longitude grid
legend for Dust RBG

Dust RGB key:

1 - Dust plume, day (bright magenta, pink) Note: Dust at night becomes purple shades below 3 km

2 - Low, water cloud (light purple)

3 - Desert surface, day (light blue)

4 - Mid, thick clouds (tan shades)

5 - Mid, thin cloud (green)

6 - Cold, thick clouds (red)

7 - High, thin ice clouds (black)

8 - Very thin clouds, over warm surface (blue)


Dust RGB Dust can be hard to see in visible and infrared imagery because it is optically thin, or because it appears similar to other cloud types such as cirrus. The RGB product is able to contrast airborne dust from clouds using band differencing and the IR thermal channel. The IR band differencing allows dust storms to be observed during both daytime and at night.

• For more details, see the Dust RGB Quick Guide, (PDF, 978 KB)