Sources of Asian dust and role of climate change versus desertification in Asian dust emission

Details Sources of Asian dust and role of climate change versus desertification in Asian dust emission Sources of Asian dust and role of climate change versus desertification in Asian dust emission

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30xasc8z&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 24, pp. ASC 8-1, CiteID 2272, DOI 10.1029/2003GL018206

Physics

33

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Global Change: Atmosphere (0315, 0325), Information Related To Geographic Region: Asia

Scientific paper

Simulations of Asian dust emissions over the past 43 years are presented based on a size-dependent soil dust emission and transport model (NARCM) along with supporting data from a network of surface stations. The deserts in Mongolia and in western and northern China (mainly the Taklimakan and Badain Juran, respectively) contribute ~70% of the total dust emissions; non-Chinese sources account for ~40% of this. Several areas, especially the Onqin Daga sandy land, Horqin sandy land, and Mu Us Desert, have increased in dust emissions over the past 20 years, but efforts to reduce desertification in these areas may have little effect on Asian dust emission amount because these are not key sources. The model simulations indicate that meteorology and climate have had a greater influence on the Asian dust emissions and associated Asian dust storm occurrences than desertification.

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