NOAA GOES Image Viewer website
23 Apr 2024 - 20:33 EDT
24 Apr 2024 - 00:33 UTC

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

2 hour loop - 12 images - 10 minute update

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Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2150 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2150 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2200 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2200 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2210 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2210 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2220 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2220 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2230 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2230 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2240 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2240 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2300 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2300 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2310 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2310 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2320 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2320 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2330 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2330 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2340 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 23 Apr 2024 - 2340 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 24 Apr 2024 - 0010 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 24 Apr 2024 - 0010 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)