NOAA GOES Image Viewer website
4 Feb 2023 - 14:23 EST
4 Feb 2023 - 19:23 UTC

GOES-West - Sector view: Pacific Southwest - Tropospheric Dust Content

1 hour loop - 12 images - 5 minute update

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Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1816 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1816 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1821 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1821 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1826 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1826 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1831 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1831 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1841 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1841 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1846 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1846 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1851 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1851 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1856 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1856 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1901 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1901 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1906 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1906 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1911 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1911 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1916 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 04 Feb 2023 - 1916 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)