ACP Atmospheric Chemistry and Physics ACP 1680-7324 Copernicus GmbH Göttingen, Germany 10.5194/acp-10-5943-2010 Relationship between wind speed and aerosol optical depth over remote ocean Huang H. 1 Thomas G. E. 1 Grainger R. G. 1 Atmospheric, Oceanic and Planetary Physics, University of Oxford, Oxford, OX1 3PU, UK 02 07 2010 10 13 5943 5950 This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://www.atmos-chem-phys.net/10/5943/2010/acp-10-5943-2010.html The full text article is available as a PDF file from http://www.atmos-chem-phys.net/10/5943/2010/acp-10-5943-2010.pdf

The effect of wind speed on aerosol optical depth (AOD) at 0.55 μm over remote ocean regions is investigated. Remote ocean regions are defined by the combination of AOD from satellite observation and wind direction from ECMWF. According to our definition, many ocean regions cannot be taken as remote ocean regions due to long-range transportation of aerosol from continents. Highly correlated linear relationships are found in remote ocean regions with a wind speed range of 0–20 ms<sup>−1</sup>. The enhancement of AOD at high wind speed is explained as the increase of sea salt aerosol production.

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