Sahara Dust Outbreak, NAAPS, NRL Monterey Aerosol Page

Sahara Dust Outbreak, 26 February - 1 March, 2000

Last updated March 2, 2000

Summary:

An unusually strong Azores High has produced summer-like surface wind conditions (strong easterlies) over North Africa in winter and the associated dust production. The analyses of 500 mb heights, sea level pressure, and surface wind anomalies by NOAA's Climate Diagnostics Center reveal these conditions:

An unusually large event, or series of events, occurred between 24 February and 29 February, and may continue.

Observations:

6-hourly Surface Observations, 24 February - 1 March

Satellite Analysis:

Visible Meteosat imagery for 28 February show dust over the ocean (higher albedo), but not over the land

Special combination of Visible and infrared Meteosat imagery for 28 February by Tom Lee, NRL/MRY, shows dust over the ocean and land (cooler IR emission) during daytime hours

NOGAPS Dynamical Forcing:

6-hourly NOGAPS Dynamics, 24 February - 29 February

NAAPS Aerosol Simulation:

Links:

Acknowledgements: Acknowledgements

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Sahara Dust Outbreak, 26 February - 1 March, 2000