摘要
【目的】验证MODIS最新版本气溶胶产品在中国陆地地区的适用性。【方法】利用AERONET地基观测数据对MODIS C6版本气溶胶光学厚度(AOD)进行验证,并将研究范围划分为5个区域,分析了C6 AOD产品在各区域的反演效果。【结果】华北和东南沿海地区的MODIS AOD反演精度高;西北地区各站点的精度有较大差别;青藏高原地区精度较差,存在严重高估现象;中东部地区部分站点存在高估。对比之前版本的AOD产品,C6产品在中国各区域的精度有显著提高。【结论】MODIS C6版本气溶胶产品在中国具有较强的适用性和应用价值。
[Purposes]This study verifies the applicability of the latest version of MODIS aerosol products over land in China.[Methods]AERONET ground-based observation data was used to verify the aerosol optical depth(AOD)of MODIS C6 version.The study area was divided into five regions,and the inversion effect of C6 AOD products in each region was analyzed.[Findings]The results show that the MODIS AOD inversion accuracy in North China and southeast coastal areas is high.The accuracy of each station in northwest China is quite different.The accuracy of the Qinghai-Tibet Plateau is poor,and there is a serious overestimation phenomenon.Some stations in the central and eastern regions are overestimated.Compared with the previous version of AOD products,the precision of C6 products in various regions of China has been significantly improved.[Conclusions]MODIS C6 aerosol products have strong applicability and application value in China.
作者
张天棋
ZHANG Tianqi(Southwest University of Science and Technology,Mianyang 621010,China)
出处
《河南科技》
2023年第2期103-106,共4页
Henan Science and Technology
