Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023627 |
The Role of Floodplain Topography in Deriving Basin Discharge Using Passive Microwave Remote Sensing | |
Kim, Seokhyeon; Sharma, Ashish | |
2019-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:2页码:1707-1716 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | Discharge measurements are essential for a range of hydrologic applications. In situ observations, however, are seldom available. Whereas satellite remote sensing offers a fascinating possibility of deriving discharge data for ungauged catchments, it comes with significant uncertainty and has had limited adoption until recently. A satellite-derived flood signal, referred to as the Measurement-Calibration (MC) ratio, is being increasingly used but suffers from significant uncertainty and inaccuracy, partly because ground geomorphic attributes are ignored in its estimation. We present here an approach for enhancing the MC ratio by accounting for local topography and its impact on flow creation within a catchment. The Topographic Wetness Index is used for extracting the MC ratio from 179 hydrologic reference stations across Australia representing different climates, watershed sizes, and elevations. Results indicate clear improvements in flow estimates using the proposed method as compared to the options currently in place. |
英文关键词 | MC ratio Topographic Wetness Index ungauged basins microwave remote sensing |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461858900043 |
WOS关键词 | WETNESS INDEX ; MODEL ; SYSTEM |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/181314 |
专题 | 资源环境科学 |
作者单位 | Univ New South Wales, Sch Civil & Environm Engn, Sydney, NSW, Australia |
推荐引用方式 GB/T 7714 | Kim, Seokhyeon,Sharma, Ashish. The Role of Floodplain Topography in Deriving Basin Discharge Using Passive Microwave Remote Sensing[J]. WATER RESOURCES RESEARCH,2019,55(2):1707-1716. |
APA | Kim, Seokhyeon,&Sharma, Ashish.(2019).The Role of Floodplain Topography in Deriving Basin Discharge Using Passive Microwave Remote Sensing.WATER RESOURCES RESEARCH,55(2),1707-1716. |
MLA | Kim, Seokhyeon,et al."The Role of Floodplain Topography in Deriving Basin Discharge Using Passive Microwave Remote Sensing".WATER RESOURCES RESEARCH 55.2(2019):1707-1716. |
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