| 利用中国通量网和MODIS数据评估MISR地表反照率产品 |
| |
| 引用本文： | 吴宏伊,童玲.利用中国通量网和MODIS数据评估MISR地表反照率产品[J].测绘科学,2012(4):64-66. |
| |
| 作者姓名： | 吴宏伊 童玲 |
| |
| 作者单位： | 电子科技大学自动化工程学院 |
| |
| 基金项目： | 863计划资助项目(2009AA122101);国家自然科学基金资助项目(40871160,60841006) |
| |
| 摘 要： | 地表反照率是反映地表能量平衡的重要参数。本文通过中国陆地生态系统通量观测研究网络的实测反照率和MODIS的地表反照率产品对MISR的短波反照率数据进行验证和分析:提取了中国通量网中的8个站点的数据和对应的MODIS、MISR的反照率产品用于验证。验证的结果显示,在多数站点,MISR短波反照率能与地面数据相吻合,大部分的反演误差都集中在0.04以内;MISR与MODIS短波反照率的吻合度更高,总体的误差为0.018,均方根误差在0.04左右。总的来说,MISR地表反照率产品具有较高的反演质量。
|
| 关 键 词： | MISR 反照率 中国通量网 MODIS 短波 |
Evaluation of MISR surface albedo data using ChinaFLUX and MODIS data |
| |
| WU Hong-yi,TONG Ling.Evaluation of MISR surface albedo data using ChinaFLUX and MODIS data[J].Science of Surveying and Mapping,2012(4):64-66. |
| |
| Authors: | WU Hong-yi TONG Ling |
| |
| Institution: | (College of Automation,University of Electronic Science and Technology of China,Chengdu 611731,China) |
| |
| Abstract: | Land surface albedo is a critical variable reflecting the surface energy balance.This paper validated and analyzed MISR surface albedo data through in-situ measurements from ChinaFLUX and MODIS albedo products.Eight sites in ChinaFLUX were chosen and corresponding satellite products were extracted.The results showed that MISR shortwave albedo data agree with ground measurements in many sites.The differences between these two data source are less than 0.04 in most cases.MISR albedo data match MODIS albedo products even better.For all sites,the bias is 0.018 and RMSe is about 0.04.Generally,MISR has surface albedo products with high inversion quality. |
| |
| Keywords: | MISR surface albedo ChinaFLUX MODIS short wave |
| 本文献已被 CNKI 等数据库收录！ |
