NOAA GOES Image Viewer website
10 Oct 2024 - 04:45 EDT
10 Oct 2024 - 08:45 UTC

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

2 hour loop - 12 images - 10 minute update

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Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0520 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0520 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0530 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0530 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0540 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0540 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0600 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0600 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0610 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0610 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0620 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0620 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0640 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0640 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0650 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0650 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0700 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0700 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0730 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0730 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0810 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0810 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0820 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 10 Oct 2024 - 0820 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)