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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >WIND EROSION PREDICTION OVER THE AUSTRALIAN CONTINENT
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WIND EROSION PREDICTION OVER THE AUSTRALIAN CONTINENT

机译:预测澳大利亚大陆的风蚀

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摘要

Wind erosion is a complicated process influenced by weather patterns, soil conditions, and vegetation cover. In this work we present an integrated wind erosion assessment and prediction system which couples a wind erosion scheme with an atmospheric prediction model and a Geographic Information System database. The system is applied to the February 1996 dust storms over the Australian continent and the predictions are in good agreement with meteorological records and satellite images. It is found that over the 1 week period from February 6 to 12, 1996, the total dust emission from the Australian continent was around 6 million tons. As demonstrated in this study, the system cap be used to identify areas and periods under wind erosion threat and to identify the responsible environmental factors. For atmospheric studies the integrated system provides a possibility of quantifying the sources of dust particles which in turn play an important role in atmospheric radiative processes. [References: 28]
机译:风蚀是一个受天气模式,土壤条件和植被覆盖影响的复杂过程。在这项工作中,我们提出了一个综合的风蚀评估和预测系统,该系统将风蚀方案与大气预测模型和地理信息系统数据库相结合。该系统用于1996年2月在澳大利亚大陆上空的沙尘暴,其预报与气象记录和卫星图像非常吻合。据发现,在1996年2月6日至12日的1周时间内,澳大利亚大陆的粉尘排放总量约为600万吨。如本研究所示,系统上限可用于确定遭受风蚀威胁的区域和时期并确定负责任的环境因素。对于大气研究,集成系统提供了量化尘埃颗粒来源的可能性,这些尘埃又在大气辐射过程中起着重要作用。 [参考:28]

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