IGSNRR OpenIR
Intercomparison of AVHRR GIMMS3g, Terra MODIS, and SPOT-VGT NDVI Products over the Mongolian Plateau
Bai, Yongqing1,2; Yang, Yaping1,3; Jiang, Hou1,2
2019-09-01
Source PublicationREMOTE SENSING
Volume11Issue:17Pages:30
Corresponding AuthorYang, Yaping(yangyp@igsnrr.ac.cn)
AbstractThe rapid development of remote sensing technology has promoted the generation of different vegetation index products, resulting in substantive accomplishment in comprehensive economic development and monitoring of natural environmental changes. The results of scientific experiments based on various vegetation index products are also different with the variation of time and space. In this work, the consistency characteristics among three global normalized difference vegetation index (NDVI) products, namely, GIMMS3g NDVI, MOD13A3 NDVI, and SPOT-VGT NDVI, are intercompared and validated based on Landsat 8 NDVI at biome and regional scale over the Mongolian Plateau (MP) from 2000 to 2014 by decomposing time series datasets. The agreement coefficient (AC) and statistical scores such as Pearson correlation coefficient, root mean square error (RMSE), mean bias error (MBE), and standard deviation (STD) are used to evaluate the consistency between three NDVI datasets. Intercomparison results reveal that GIMMS3g NDVI has the highest values basically over the MP, while SPOT-VGT NDVI has the lowest values. The spatial distribution of AC values between various NDVI products indicates that the three NDVI datasets are highly consistent with each other in the northern regions of the MP, and MOD13A3 NDVI and SPOT-VGT NDVI have better consistency in expressing vegetation cover and change trends due to the highest proportions of pixels with AC values greater than 0.6. However, the trend components of decomposed NDVI sequences show that SPOT-VGT NDVI values are about 0.02 lower than the other two datasets in the whole variation periods. The zonal characteristics show that GIMMS3g NDVI in January 2013 is significantly higher than those of the other two datasets. However, in July 2013, the three datasets are remarkably consistent because of the greater vegetation coverage. Consistency validation results show that values of SPOT-VGT NDVI agree more with Landsat 8 NDVI than GIMMS3g NDVI and MOD13A3 NDVI, and the consistencies in the northeast of the MP are higher than northwest regions.
KeywordNDVI consistency assessment Mongolian Plateau intercomparison consistency validation terrestrial ecoregion
DOI10.3390/rs11172030
WOS KeywordENHANCED VEGETATION INDEX ; TIME-SERIES ; NOAA-AVHRR ; SATELLITE DATA ; TREND ANALYSIS ; RIVER-BASIN ; LAND-COVER ; PHENOLOGY ; DYNAMICS ; GRASSLAND
Indexed BySCI
Language英语
Funding ProjectSpecial Project of Scientific and Technological Fundamental Resources Survey in China[2017FY101300] ; National Earth System Science Data Center[2005DKA32300] ; China Knowledge Center for Engineering Sciences and Technology-Geography Resources and Ecology Knowledge Service System[CKCEST-2019-1-4]
Funding OrganizationSpecial Project of Scientific and Technological Fundamental Resources Survey in China ; National Earth System Science Data Center ; China Knowledge Center for Engineering Sciences and Technology-Geography Resources and Ecology Knowledge Service System
WOS Research AreaRemote Sensing
WOS SubjectRemote Sensing
WOS IDWOS:000486874300074
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69556
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYang, Yaping
Affiliation1.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Bai, Yongqing,Yang, Yaping,Jiang, Hou. Intercomparison of AVHRR GIMMS3g, Terra MODIS, and SPOT-VGT NDVI Products over the Mongolian Plateau[J]. REMOTE SENSING,2019,11(17):30.
APA Bai, Yongqing,Yang, Yaping,&Jiang, Hou.(2019).Intercomparison of AVHRR GIMMS3g, Terra MODIS, and SPOT-VGT NDVI Products over the Mongolian Plateau.REMOTE SENSING,11(17),30.
MLA Bai, Yongqing,et al."Intercomparison of AVHRR GIMMS3g, Terra MODIS, and SPOT-VGT NDVI Products over the Mongolian Plateau".REMOTE SENSING 11.17(2019):30.
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