Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1109/IGARSS.2006.163 |
Potential for Dust Storm Detection Through Aerosol Radiative Forcing Related to Atmospheric Parameters | |
El-Askary, Hesham1; Kafatos, Menas2 | |
通讯作者 | El-Askary, Hesham |
会议名称 | IEEE International Geoscience and Remote Sensing Symposium (IGARSS) |
会议日期 | JUL 31-AUG 04, 2006 |
会议地点 | Denver, CO |
英文摘要 | The implications of climatic effects due to aerosols with a large variability like mineral dust serve as indicators of dust events and are examined. Airborne mineral dust can influence the climate by altering the radiative properties of the atmosphere. For instance, aerosols in the form of dust particles reflect the incoming solar radiation to space, thereby reducing the amount of radiation available to the ground. This is known as 'direct' radiative forcing of aerosols. Aerosols also serve as cloud condensation nuclei (CCN) and change the cloud albedo and microphysical properties of clouds, known as 'indirect' radiative forcing of aerosols. Direct and indirect radiative forcing by mineral dust are observed over a desert case study in China as well as a highly vegetated case study over Nile Delta, Egypt, using boundary layer dispersion (BLD), albedo, sensible heat flux (SHF), latent heat flux (LHF) and out going long wave radiation (OLR) parameters. During the presence of the dust event, shortwave fluxes largely decrease accompanied by an abrupt increase in the down-welling long wave fluxes resulting in surface forcing. This leads to absorption of the shortwave and long wave radiations resulting in a positive forcing in the top of the atmosphere. In this research we are focusing on the radiative impacts of the dust over some meteorological parameters. |
英文关键词 | Dust Storm Sensible Heat Flux Latent Heat Flux Boundary Layer Dispersion Albedo Outgoing Long Wave Radiation |
来源出版物 | 2006 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-8 |
ISSN | 2153-6996 |
出版年 | 2006 |
页码 | 620-+ |
ISBN | 978-0-7803-9509-1 |
出版者 | IEEE |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Egypt;USA |
收录类别 | CPCI-S |
WOS记录号 | WOS:000260989400159 |
WOS类目 | Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology |
WOS研究方向 | Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/295761 |
作者单位 | 1.Univ Alexandria, Dept Environm Studies, Fac Sci, Alexandria, Egypt; 2.George Mason Univ, Ctr Earth Observ & Space Res, Sch Comp Sci, Fairfax, VA USA |
推荐引用方式 GB/T 7714 | El-Askary, Hesham,Kafatos, Menas. Potential for Dust Storm Detection Through Aerosol Radiative Forcing Related to Atmospheric Parameters[C]:IEEE,2006:620-+. |
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