The image of satellite-derived 550 nm aerosol optical thickness over Europe is used with permission from Pepijn Veefkind. See: Aerosol optical depth over Europe in August 1997 derived from ATSR-2 data, C. Robles-Gonzalez, J.P. Veefkind, and G. de Leeuw, Geophysical Research Letters, p 955-958, April 1, 2000.

Measuring Aerosol Optical Thickness

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Much of the material on this Web page is based upon work supported by the GLOBE Program and the National Science Foundation. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of GLOBE or NSF.

MODIS monthly average 550 nm AOT over Philadelphia, PA, USA
(40░N, 75░W).