Absorption of sunlight by dust as inferred from satellite and ground‐based remote sensing

Geophysical Research Letters - Tập 28 Số 8 - Trang 1479-1482 - 2001
Y. J. Kaufman1, D. Tanré2, Оleg Dubovik3, Arnon Karnieli4, L. A. Remer1
1NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771
2Lab. d'Optique Atmos., CNRS, Univ. de Sciences et Techniques de Lille, Villeneuve d'Ascq, France
3Science Systems and Applications, Inc., Lanham, MD 20706;
4J. Blaustein Inst. for Desert Research, Ben Gurion Univ., Sede-Boker, Israel 84990

Tóm tắt

Dust absorption of solar radiation is not well known due to limitations in the accuracy of in situ measurements. Here we report two new independent remote sensing techniques that provide sensitive measurements of dust absorption. One uses satellite spectral measurements, the second ground based sky measurements. Both techniques demonstrate that Saharan dust absorption of solar radiation is several times smaller than the current international standards. For example, at wavelength of 0.64 µm the dust single scattering albedo is reported here as 0.97±0.02 rather than 0.87±0.04 in recent review.

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Geophysical Research Letters

Tập 28 Số 8

1479-1482

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