Changes of Long-wave and Sort-wave Radiations at Ground Surface during Dust Storms at Dunhuang, China

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Du, Mingyuan^1 ; Yonemura, Seiichiro^1 ; Shen, Yanbo^2 ; Wang, Wanfu^3

Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Japan^1

National Climate Centre (NCC), China Meteorological Administration (CMA), China^2

Conservation Institute of Dunhuang Academy, China^3

关键词: Aerosol loading;    Dunhuang;    Dust storm;    Long-wave radiation;    Observation;    Optical thickness;    Short-wave radiation;    Visibili;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012167/pdf
DOI  :  10.1088/1757-899X/301/1/012167

来源: IOP

【 摘 要 】

Aerosols have a direct radioactive and forcing because they scatter and absorb solar and infrared radiation in the atmosphere. Mineral dust is a major contributor to aerosol loading and optical thickness. The characteristics of short-wave and long-wave radiation variations at ground surfaces during some dust storms were analyzed by intensive observations at two different environments: desert and oasis. When a dust storm occurs, the incoming short-wave radiation deceases and long-wave radiation increases. Increasing in long-wave radiation is greater in oasis than in desert indicating there is a warmer dust layer there.