| The responses of vegetation water content (EWT) and assessment of drought monitoring along a coastal region using remote sensing | |
Gao, Zhiqiang1 ; Wang, Qiuxian1; Cao, Xiaoming2; Gao, Wei3; Cao, XM (reprint author), Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100101, Peoples R China. caoxm1027@gmail.com
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| 发表期刊 | GISCIENCE & REMOTE SENSING
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| ISSN | 1548-1603 |
| 2014-01-02 | |
| 卷号 | 51期号:1页码:1-16 |
| 关键词 | Responses Land Surface Parameters Remote Sensing Equivalent Water Thickness (Ewt) |
| DOI | 10.1080/15481603.2014.882564 |
| 产权排序 | [Gao, Zhiqiang; Wang, Qiuxian] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Cao, Xiaoming] Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100101, Peoples R China; [Gao, Wei] Colorado State Univ, USDA UVB Monitoring & Res Program, Nat Resource Ecol Lab, Ft Collins, CO 80525 USA |
| 作者部门 | 海岸带信息集成与综合管理实验室 |
| 英文摘要 | This article retrieved the vegetation water content equivalent water thickness (EWT) information and the relevant parameters for the land surface from full-band TM remote sensing data. The effects of surface water heat flux and surface covering on the EWT were analyzed via studies of the regional land cover status and the combined EWT with land surface parameters. This article also analyzed the roles and limitations of EWT in drought monitoring combined with classification of the regional drought and regional water stress index (RWSI). From the results, the following conclusions were reported. (1) The spatial distribution of the EWT is closely related to the vegetation, and the EWT is able to monitor the regional water conditions to a certain extent. (2) The distribution of the EWT is affected significantly by the density of vegetation cover, land surface temperature and evapo-transpiration. (3) The correlation between the NDVI (or fractional vegetation cover) and the EWT differs under different vegetation coverage conditions. (4) The evapo-transpiration of the ecological environment is closely tied to the EWT such that the changes in evapo-transpiration affect the EWT significantly. (5) The ability of the EWT to monitor regional drought is conditional, and therefore no significant indication exists that can be used to monitor moderate to severe drought conditions.; This article retrieved the vegetation water content equivalent water thickness (EWT) information and the relevant parameters for the land surface from full-band TM remote sensing data. The effects of surface water heat flux and surface covering on the EWT were analyzed via studies of the regional land cover status and the combined EWT with land surface parameters. This article also analyzed the roles and limitations of EWT in drought monitoring combined with classification of the regional drought and regional water stress index (RWSI). From the results, the following conclusions were reported. (1) The spatial distribution of the EWT is closely related to the vegetation, and the EWT is able to monitor the regional water conditions to a certain extent. (2) The distribution of the EWT is affected significantly by the density of vegetation cover, land surface temperature and evapo-transpiration. (3) The correlation between the NDVI (or fractional vegetation cover) and the EWT differs under different vegetation coverage conditions. (4) The evapo-transpiration of the ecological environment is closely tied to the EWT such that the changes in evapo-transpiration affect the EWT significantly. (5) The ability of the EWT to monitor regional drought is conditional, and therefore no significant indication exists that can be used to monitor moderate to severe drought conditions. |
| 文章类型 | Article |
| 资助机构 | Physical Geography ; Remote Sensing |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | ENERGY BALANCE ALGORITHM ; LAND-SURFACE IMAGERY ; ATMOSPHERIC CORRECTION ; SPECTRAL INDEX ; REFLECTANCE ; VALIDATION ; SPACE |
| 研究领域[WOS] | Physical Geography ; Remote Sensing |
| WOS记录号 | WOS:000334039200001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8603 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 |
| 通讯作者 | Cao, XM (reprint author), Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100101, Peoples R China. caoxm1027@gmail.com |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 2.Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100101, Peoples R China 3.Colorado State Univ, USDA UVB Monitoring & Res Program, Nat Resource Ecol Lab, Ft Collins, CO 80525 USA |
| 推荐引用方式 GB/T 7714 | Gao, Zhiqiang,Wang, Qiuxian,Cao, Xiaoming,et al. The responses of vegetation water content (EWT) and assessment of drought monitoring along a coastal region using remote sensing[J]. GISCIENCE & REMOTE SENSING,2014,51(1):1-16. |
| APA | Gao, Zhiqiang,Wang, Qiuxian,Cao, Xiaoming,Gao, Wei,&Cao, XM .(2014).The responses of vegetation water content (EWT) and assessment of drought monitoring along a coastal region using remote sensing.GISCIENCE & REMOTE SENSING,51(1),1-16. |
| MLA | Gao, Zhiqiang,et al."The responses of vegetation water content (EWT) and assessment of drought monitoring along a coastal region using remote sensing".GISCIENCE & REMOTE SENSING 51.1(2014):1-16. |
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