NOAA GOES Image Viewer website
20 Jul 2024 - 00:25 EDT
20 Jul 2024 - 04:25 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 - 20 Jul 2024 - 0040 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0040 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0110 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0110 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0120 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0120 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0140 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0140 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0200 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0200 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0220 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0220 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0230 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0230 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0240 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0240 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0310 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0310 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0320 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0320 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0340 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0340 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0400 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 20 Jul 2024 - 0400 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)