Sand storm. Source: pxhere

Dust storm over Algeria and Mali

14 July 2003 00:00 UTC

Sand storm. Source: pxhere
Sand storm. Source: pxhere

Dust storm over Algeria and Mali in July 2003.

Last Updated

23 March 2022

Published on

14 July 2003

In order to test the capability of MSG to monitor dust storms during the night, the case of 14 July 2003 (dust storm over Algeria) was studied in more detail. Due to the low emissivity of desert surfaces in the IR8.7 channel, dust clouds are clearly distinct from cloud-free desert surfaces in the IR8.7–IR10.8 brightness temperature difference images.

Met-7 IR Channel, 14 July, 02:00 UTC
Figure 1: Meteosat-7 IR Channel, 14 July, 02:00 UTC
Met-8 Difference Image IR8.7–IR10.8, 14 July, 02:00 UTC
Figure 2: Meteosat-8 Difference Image IR8.7–IR10.8, 14 July, 02:00 UTC. Animation (02:00–08:30 UTC)
Met-8 Channel 01 (VIS0.6), 14 July, 08:45 UTC
Figure 3: Meteosat-8 Channel 01 (VIS0.6), 14 July, 08:45 UTC
Met-8, 14 July 2003, 10:00 UTC
Figure 4: Meteosat-8 RGB Composite IR12.0–IR10.8, IR10.8–IR8.7, IR10.8, 14 July, 10:00 UTC