Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/2000JD900668 |
Interactive soil dust aerosol model in the GISS GCM 1. Sensitivity of the soil dust cycle to radiative properties of soil dust aerosols | |
Perlwitz, J; Tegen, I; Miller, RL | |
通讯作者 | Perlwitz, J |
来源期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 0148-0227 |
出版年 | 2001 |
卷号 | 106期号:D16页码:18167-18192 |
英文摘要 | The sensitivity of the soil dust aerosol cycle to radiative forcing by the soil dust aerosol particles themselves is studied. Four experiments with the NASA GISS atmospheric general circulation model, which includes a soil dust aerosol model, are compared, all using a prescribed climatological sea surface temperature as a lower boundary condition. In one experiment, dust is included as a dynamic tracer with no radiative effect, whereas dust interacts with radiation in the other simulations. The single-scattering albedo of dust particles is prescribed to be globally uniform in the experiments with radiatively active dust, although this albedo is varied from experiment to experiment. On a global scale the radiative forcing by dust generally causes a reduction in the atmospheric dust load, corresponding to a decreased dust source flux. The dust source flux and its changes are analyzed in more detail for the main source regions. This analysis shows that the reduction varies both with the season and with the single-scattering albedo of the dust particles. The experiments show that dust radiative forcing can lead to significant changes both in the soil dust cycle and in the climate state. To estimate dust concentration and radiative forcing by dust more accurately, dust size distributions and dust single-scattering albedo in the model should be a function of the source region, because dust concentration and the climate response to dust radiative forcing are sensitive to dust radiative parameters. |
类型 | Article |
语种 | 英语 |
国家 | USA ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000170579400037 |
WOS关键词 | GENERAL-CIRCULATION MODEL ; MINERAL DUST ; OPTICAL-THICKNESS ; SIZE DISTRIBUTION ; CLIMATE-CHANGE ; DESERT DUST ; SURFACE ; SIMULATIONS ; TROPOSPHERE ; DISTRIBUTIONS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/141236 |
作者单位 | (1)Columbia Univ, Dept Appl Phys & Appl Math, NASA GISS, New York, NY 10025 USA;(2)Max Planck Inst Biochem, D-07745 Jena, Germany;(3)NASA, Goddard Inst Space Studies, New York, NY 10025 USA |
推荐引用方式 GB/T 7714 | Perlwitz, J,Tegen, I,Miller, RL. Interactive soil dust aerosol model in the GISS GCM 1. Sensitivity of the soil dust cycle to radiative properties of soil dust aerosols[J],2001,106(D16):18167-18192. |
APA | Perlwitz, J,Tegen, I,&Miller, RL.(2001).Interactive soil dust aerosol model in the GISS GCM 1. Sensitivity of the soil dust cycle to radiative properties of soil dust aerosols.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,106(D16),18167-18192. |
MLA | Perlwitz, J,et al."Interactive soil dust aerosol model in the GISS GCM 1. Sensitivity of the soil dust cycle to radiative properties of soil dust aerosols".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 106.D16(2001):18167-18192. |
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