Analysis of Local Cloud Properties Using Downward Solar Radiation Dataset from Geostationary Satellite
Analysis of Local Cloud Properties Using Downward Solar Radiation Dataset from Geostationary Satellite
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DOI：
10.2208/jscejhe.73.i_481
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发表时间：
2017
影响因子：
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通讯作者：
Deepak Bikram Thapa Chhetri;Herlin Verina;Y. Fujimori;R. Moriwaki
中科院分区：
文献类型：
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作者：
Deepak Bikram Thapa Chhetri;Herlin Verina;Y. Fujimori;R. Moriwaki
本研究的主要目的是分析向下短波辐射估计从地球静止卫星使用一个指数称为晴空率（CSR），并应用它来看看地理和土地利用变化对云的影响。本研究的目标区松山具有山地、平原和城乡土地利用对比的特点。取得了以下成果。山区的CSR可能低于平原地区。时间分析表明，与平原地区相比，山区的CSR下降到中午，然后增加相应的时间。城市和农村的对比表明，下午城市云的形成和厚度高于农村。CRS索引和数据集具有很高的潜力来了解当地的云属性。
The main objective of this study is to analyze downward shortwave radiation estimated from geostationary satellite by using an index called Clear Sky Rate (CSR) and apply it to see the impact of geographical and land use variation on clouds. Matsuyama, the target area in this study has mountains, plains and con-trasting land uses of urban and rural areas. The following outcomes were obtained. CSR is likely to be lower in mountainous areas than in the plain areas. The temporal analysis shows that the CSR on the mountains decreases down to the midday and then increases accordingly with time compared to the plain areas. The comparison between urban and rural areas shows that formation and thickness of cloud in an urban area are higher than the rural area in the afternoon. The CRS index and the dataset has a high potential to understand the local cloud properties.