A One Year Landsat 8 Conterminous United States Study of Cirrus and Non-Cirrus Clouds

被引：40

作者：

Kovalskyy, Valeriy ^{[1
]}

Roy, David P. ^{[1
]}

机构：

[1] S Dakota State Univ, Geospatial Sci Ctr Excellence, Brookings, SD 57007 USA

来源：

REMOTE SENSING | 2015年 / 7卷 / 01期

关键词：

Landsat; 8; cloud; cirrus; DATA CONTINUITY MISSION; AUTOMATED CLOUD; COVER CHANGE; MODIS; VALIDATION; ALGORITHM; AVAILABILITY; RADIANCES; CHANNEL; SHADOW;

D O I：

10.3390/rs70100564

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The first year of available Landsat 8 data over the conterminous United States (CONUS), composed of 11,296 acquisitions sensed over more than 11 thousand million 30 m pixel locations, was analyzed comparing the spatial and temporal incidence of 30 m cloud and cirrus states available in the standard Landsat 8 Level 1 product suite. This comprehensive data analysis revealed that on average over a year of CONUS observations (i) 35.9% were detected with high confidence cloud, with spatio-temporal patterns similar to those observed by previous Landsat 5 and 7 cloud analyses; (ii) 28.2% were high confidence cirrus; (iii) 20.1% were both high confidence cloud and high confidence cirrus; and (iv) 6.9% were detected as high confidence cirrus but low confidence cloud. The results illustrate the potential of the 30 m cloud and cirrus states available in the standard Landsat 8 Level 1 product suite but imply that the historical CONUS Landsat archive has about 7% of undetected cirrus contaminated pixels. Systematic cloud detection commission errors over a minority of highly reflective exposed soil/sand surfaces were found and it is recommended that caution be taken when using the currently available Landsat 8 cloud data over similar surfaces.

引用

页码：564 / 578

页数：15

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