| 中国地区三种地表反照率产品比较 |
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| 引用本文： | 唐晨凯,曾燕,施国萍,徐金勤.中国地区三种地表反照率产品比较[J].气象科学,2022,42(1):70-78. |
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| 作者姓名： | 唐晨凯 曾燕 施国萍 徐金勤 |
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| 作者单位： | 南京信息工程大学 应用气象学院, 南京 210044;中国气象局交通气象重点开放实验室, 南京 210019;江苏省气象科学研究所, 南京 210019;南京气象科技创新研究院, 南京 210019;南京信息工程大学 地理科学学院, 南京 210044 |
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| 基金项目： | 国家重点研发计划资助项目(2019FYB2102003);国家自然科学基金青年基金项目(41805083);江苏省研究生科研与实践创新计划项目(SJKY19_0949) |
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| 摘 要： | 利用2007—2011年MODIS、GlobAlbedo和ERA-Interim的3种地表反照率产品,借助地理信息系统(Geographic Information System,GIS)空间化技术,对中国地区3种地表反照率产品进行了对比分析。结果表明:3种产品与气象站观测值的时间分布趋势一致,冬季高夏季低,且相关性较高。3种产品中,MODIS与GlobAlbedo的绝对差异值最小,ERA-Interim与MODIS、GlobAlbedo的绝对差异值较大。3种产品在青藏高原和西北山地区域表现出较大的差异,且差异表现为冬半年高,夏半年低。3种产品之间相关性最高的是MODIS与GlobAlbedo,最低的是MODIS与ERA-Interim,3种产品在40°N以北具有较好的相关性。且在夏季和冬季地表反照率均值的表现说明,ERA-Interim相比MODIS、GlobAlbedo难以反映地表反照率受地形和土地覆被的影响。
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| 关 键 词： | 地表反照率 中国 MODIS GlobAlbedo ERA-Interim |
| 收稿时间： | 2020/3/25 0:00:00 |
| 修稿时间： | 2020/4/26 0:00:00 |
Comparison and analysis of surface albedo products in China |
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| TANG Chenkai,ZENG Yan,SHI Guoping,XU Jinqin.Comparison and analysis of surface albedo products in China[J].Scientia Meteorologica Sinica,2022,42(1):70-78. |
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| Authors: | TANG Chenkai ZENG Yan SHI Guoping XU Jinqin |
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| Institution: | School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China;Key Laboratory of Transportation Meteorology, China Meteorological Administration, Nanjing 210019, China;Jiangsu Research Institute of Meteorological Science, Nanjing 210019, China;Nanjing Joint Institute for Atmospheric Sciences, Nanjing 210019, China;School of Geographical Science, Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | Based on the surface albedo products of MODIS, GlobAlbedo and ERA-Interim from 2007 to 2011, the application of three kinds of surface albedo products in China was comparatively analyzed by using GIS (Geographic Information System) spatial technology. Results show that the three products are highly correlated with the meteorological station observations, all of which are high in winter and low in summer. Among the three products, the absolute difference between MODIS and GlobAlbedo is the smallest, and the absolute difference between era-interim and other products is large. The three products show great differences in the Qinghai-Tibet Plateau and the northwest mountainous area, and the differences are high in winter and low in summer. The highest correlation of the three products is MODIS and GlobAlbedo, the lowest is MODIS and ERA-interim, and the three products have a high correlation in the north of 40°N. The mean values of surface albedo in summer and winter of the three products indicate that ERA-Interim, compared with MODIS and GlobAlbedo, is difficult to reflect the influence of terrain and land cover on the surface albedo. |
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| Keywords: | surface albedo China MODIS GlobAlbedo ERA-Interim |
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