Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/rs8020137 |
Assessment of the Suomi NPP VIIRS Land Surface Albedo Data Using Station Measurements and High -Resolution Albedo Maps | |
Zhou, Yuan1; Wang, Dongdong1; Liang, Shunlin1,2; Yu, Yunyue3; He, Tao1 | |
通讯作者 | Zhou, Yuan |
来源期刊 | REMOTE SENSING
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EISSN | 2072-4292 |
出版年 | 2016 |
卷号 | 8期号:2 |
英文摘要 | Land surface albedo (LSA), one of the Visible Infrared Imaging Radiometer Suite (VIIRS) environmental data records (EDRs), is a fundamental component for linking the land surface and the climate system by regulating shortwave energy exchange between the land and the atmosphere. Currently, the improved bright pixel sub-algorithm (BPSA) is a unique algorithm employed by VIIRS to routinely generate LSA EDR from VIIRS top-of-atmosphere (TOA) observations. As a product validation procedure, LSA EDR reached validated (V1 stage) maturity in December 2014. This study summarizes recent progress in algorithm refinement, and presents comprehensive validation and evaluation results of VIIRS LSA by using extensive field measurements, Moderate Resolution Imaging Spectroradiometer (MODIS) albedo product, and Landsat-retrieved albedo maps. Results indicate that: (1) by testing the updated desert-specific look-up-table (LUT) that uses a stricter standard to select the training data specific for desert aerosol type in our local environment, it is found that the VIIRS LSA retrieval accuracy is improved over a desert surface and the absolute root mean square error (RMSE) is reduced from 0.036 to 0.023, suggesting the potential of the updated desert LUT to the improve the VIIRS LSA product accuracy; (2) LSA retrieval on snow-covered surfaces is more accurate if the newly developed snow-specific LUT (RMSE = 0.082) replaces the generic LUT (RMSE = 0.093) that is employed in the current operational LSA EDR production; (3) VIIRS LSA is also comparable to high-resolution Landsat albedo retrieval (RMSE < 0.04), although Landsat albedo has a slightly higher accuracy, probably owing to higher spatial resolution with less impacts of mixed pixel; (4) VIIRS LSA retrievals agree well with the MODIS albedo product over various land surface types, with overall RMSE of lower than 0.05 and the overall bias as low as 0.025, demonstrating the comparable data quality between VIIRS and the MODIS LSA product. |
英文关键词 | albedo Suomi NPP VIIRS Landsat accuracy assessment |
类型 | Article |
语种 | 英语 |
国家 | USA ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000371898800017 |
WOS关键词 | BROAD-BAND ALBEDO ; BIDIRECTIONAL REFLECTANCE ; MODIS ; CLIMATE ; ALGORITHM ; FORESTS ; EARTH ; SIGNATURES ; RETRIEVAL ; FEEDBACKS |
WOS类目 | Remote Sensing |
WOS研究方向 | Remote Sensing |
来源机构 | 北京师范大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195936 |
作者单位 | 1.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA; 2.Beijing Normal Univ, Sch Geog, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China; 3.NOAA, Ctr Satellite Applicat & Res, Natl Environm Satellite Data & Informat Serv, College Pk, MD 20740 USA |
推荐引用方式 GB/T 7714 | Zhou, Yuan,Wang, Dongdong,Liang, Shunlin,et al. Assessment of the Suomi NPP VIIRS Land Surface Albedo Data Using Station Measurements and High -Resolution Albedo Maps[J]. 北京师范大学,2016,8(2). |
APA | Zhou, Yuan,Wang, Dongdong,Liang, Shunlin,Yu, Yunyue,&He, Tao.(2016).Assessment of the Suomi NPP VIIRS Land Surface Albedo Data Using Station Measurements and High -Resolution Albedo Maps.REMOTE SENSING,8(2). |
MLA | Zhou, Yuan,et al."Assessment of the Suomi NPP VIIRS Land Surface Albedo Data Using Station Measurements and High -Resolution Albedo Maps".REMOTE SENSING 8.2(2016). |
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