| DOI: | 10.1002/2015GL064125
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| 论文题名: | Microwave remote sensing of short-term droughts during crop growing seasons |
| 作者: | Yuan X.; Ma Z.; Pan M.; Shi C.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9545
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| EISSN: | 1944-9276
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| 出版年: | 2015
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| 卷: | 42, 期:11 | | 起始页码: | 4394
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| 结束页码: | 4401
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| 语种: | 英语
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| 英文关键词: | drought
; ENSO
; reanalysis
; remote sensing
; soil moisture
; validation
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| Scopus关键词: | Crops
; Cultivation
; Drought
; Microwaves
; Moisture
; Soil moisture
; Soils
; Space optics
; ENSO
; European Space Agency
; Interannual variation
; Microwave remote sensing
; Reanalysis
; Satellite soil moisture
; Validation
; Vegetation penetration
; Remote sensing
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| 英文摘要: | Severe short-term (monthly to seasonal) droughts frequently occurred over China in recent years, with devastating impacts on crop production. This study assesses the capability of microwave remote sensing in detecting soil moisture (agricultural) droughts over China and in providing early warnings. The 22 year (1992-2013) European Space Agency satellite soil moisture retrievals are compared against the in situ observations at 312 stations in China, the global soil moisture reanalysis, and the observed rainfall deficit. Both the reanalysis and remote sensing products can only detect less than 60% of drought months at in situ station scale, but they capture the interannual variations of short-term drought area at river basin scales quite well. As compared with reanalysis, the passive and merged microwave products have better drought detection over sparsely vegetated regions in northwestern China and the active microwave product with better vegetation penetration works the best in eastern China. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84934436187&doi=10.1002%2f2015GL064125&partnerID=40&md5=80ac7f7635cb0665704bc5ae4237b84f
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9160
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | RCE-TEA, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
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| Recommended Citation: | |
Yuan X.,Ma Z.,Pan M.,et al. Microwave remote sensing of short-term droughts during crop growing seasons[J]. Geophysical Research Letters,2015-01-01,42(11).
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