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The Impact of Variations of Underlying Surface and Vegetation Index on Numerical Simulation of Dust Emission
Author(s): 
Pages: 392-400
Year: Issue:  2
Journal: PLATEAU METEOROLOGY

Keyword:  叶面积指数植被覆盖起沙数值模拟;
Abstract: 分析了叶面积指数和植被覆盖变化对沙尘暴起沙过程的影响机理.在一个集成的沙尘数值模拟预报系统中,将模拟区域的叶面积指数分成了0,0.5,3.0和卫星反演的实测值4种,结果表明,叶面积指数对沙尘的数值模拟有较大的影响,利用卫星反演的叶面积指数计算沙尘浓度时,沙尘浓度的变化介于叶面积指数为0~0.5之间.将植被覆盖度数据分成0,0.2和卫星反演的实测值3个类型.当植被覆盖度都为0时,沙尘浓度最大;当植被覆盖度为0.2时,沙尘浓度出现的范围明显减少.
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