IGSNRR OpenIR
Intercomparison of two trapezoid-based soil moisture downscaling methods using three scaling factors
Tian, Jing1; Deng, Xiangzheng2; Su, Hongbo1,3
2019-04-03
Source PublicationINTERNATIONAL JOURNAL OF DIGITAL EARTH
ISSN1753-8947
Volume12Issue:4Pages:485-499
Corresponding AuthorTian, Jing(tianj.04b@igsnrr.ac.cn)
AbstractThis paper compared two soil moisture downscaling methods using three scaling factors. Level 3 soil moisture product of advanced microwave scanning radiometer for EOS (AMSR-E) is downscaled from 25 to 1 km. The downscaled results are compared with the soil moisture observations from polarimetric scanning radiometer (PSR) microwave radiometer and field sampling. The results show that (1) the scaling factor of normalized soil thermal inertia (NSTIs) and vegetation temperature condition index (VTCI) are better than soil evaporative efficiency in reflecting soil moisture; (2) for method 1, NSTIS is the best in the downscaling of soil moisture. For method 2, VTCI is the best; (3) no significant differences of the correlation coefficients (R-2) and the biases were found between the two methods for the same scaling factors. However, method 2 shows a better potential than method 1 in the time-series applications of the downscaling of soil moisture; (4) compared with the relationship between the area-averaged soil moisture of AMSR-E and that of PSR, R-2 of the 6 sets of the downscaled soil moisture almost do not decrease, which suggests the validity of the downscaling of soil moisture with the two downscaling methods using the three scaling factors.
KeywordSoil moisture downscaling trapezoid-based method scaling factor
DOI10.1080/17538947.2018.1447031
WOS KeywordIMPROVING SPATIAL REPRESENTATION ; AMSR-E ; THERMAL INERTIA ; HIGH-RESOLUTION ; DISAGGREGATION ; MODEL ; SMOS ; INTEGRATION ; ALGORITHM ; FLUX
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41671354] ; National Key Research and Development Plan[2016YFA0602501]
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Plan
WOS Research AreaPhysical Geography ; Remote Sensing
WOS SubjectGeography, Physical ; Remote Sensing
WOS IDWOS:000461865100007
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/48618
Collection中国科学院地理科学与资源研究所
Corresponding AuthorTian, Jing
Affiliation1.Chinese Acad Sci, IGSNRR, Key Lab Water Cycle & Related Land Surface Proc, A11 Datun Rd, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Chinese Agr Policy, Beijing, Peoples R China
3.Florida Atlantic Univ, Dept Civil Environm & Geomat Engn, Boca Raton, FL 33431 USA
Recommended Citation
GB/T 7714
Tian, Jing,Deng, Xiangzheng,Su, Hongbo. Intercomparison of two trapezoid-based soil moisture downscaling methods using three scaling factors[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2019,12(4):485-499.
APA Tian, Jing,Deng, Xiangzheng,&Su, Hongbo.(2019).Intercomparison of two trapezoid-based soil moisture downscaling methods using three scaling factors.INTERNATIONAL JOURNAL OF DIGITAL EARTH,12(4),485-499.
MLA Tian, Jing,et al."Intercomparison of two trapezoid-based soil moisture downscaling methods using three scaling factors".INTERNATIONAL JOURNAL OF DIGITAL EARTH 12.4(2019):485-499.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tian, Jing]'s Articles
[Deng, Xiangzheng]'s Articles
[Su, Hongbo]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tian, Jing]'s Articles
[Deng, Xiangzheng]'s Articles
[Su, Hongbo]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tian, Jing]'s Articles
[Deng, Xiangzheng]'s Articles
[Su, Hongbo]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.