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Aerosols, Monsoon Rainfall Variability, and Climate Change

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How absorbing are dust aerosols ????<br />

Comparison of Asian Dust Single Scattering Albedo<br />

versus Saharan <strong>and</strong> Saudi Arabian Dust<br />

1.00<br />

0.98<br />

absorbing<br />

More<br />

Single<br />

Scattering Albedo<br />

0.96<br />

0.94<br />

0.92 Beijing<br />

Anmyon, S. Korea<br />

Dunhuang, China<br />

Kanpur, India<br />

0.90<br />

Cape Verde<br />

Saudi Arabia - SV<br />

Bahrain<br />

0.88<br />

400 500 600 700 800 900 1000 1100<br />

Wavelength (nm)<br />

Micrographs of<br />

soot coating <strong>and</strong> aggregate<br />

on mineral dust from Asian dus<br />

t (courtesy of J. Anderson)<br />

Dusts over major industrial cities are more absorbing (solar radiation)<br />

T. Eck et al 2004<br />

45

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