Saharan dust storms and indirect aerosol effects on clouds: CRYSTAL-FACE results

Details Saharan dust storms and indirect aerosol effects on clouds: CRYSTAL-FACE results Saharan dust storms and indirect aerosol effects on clouds: CRYSTAL-FACE results

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30l..35s&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 12, pp. 35-1, CiteID 1633, DOI 10.1029/2003GL017371

Physics

94

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Atmospheric Composition And Structure: Pollution-Urban And Regional (0305), Meteorology And Atmospheric Dynamics: Remote Sensing

Scientific paper

A recent field experiment in southern Florida using aircraft and polarization lidar shows that mineral dust particles transported from Saharan Africa are effective ice nuclei, apparently capable of glaciating a mildly supercooled (-5.2° to -8.8°C) altocumulus cloud. These results are similar to those from Asian dust storm particles observed over the western US, suggesting that in the northern hemisphere major dust storms play a role in modulating climate through the indirect aerosol effect on cloud properties. If this is true of desert dusts in general, then even minor aeolian emissions could have an effect on regional weather and climate.

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