期刊
HYDROLOGICAL PROCESSES
卷 28, 期 23, 页码 5662-5673出版社
WILEY-BLACKWELL
DOI: 10.1002/hyp.10068
关键词
groundwater; discharge; mapping; Landsat; thermal; remote sensing; Prairie Pothole
资金
- NSERC
- Alberta Water Research Institute
- Alberta Geological Survey - Provincial Groundwater Inventory Program
- NSERC Discovery Grant
Mapping groundwater discharge zones at broad spatial scales remains a challenge, particularly in data sparse regions. We applied a regional scale mapping approach based on thermal remote sensing to map discharge zones in a complex watershed with a broad diversity of geological materials, land cover and topographic variation situated within the Prairie Parkland of northern Alberta, Canada. We acquired winter thermal imagery from the USGS Landsat archive to demonstrate the utility of this data source for applications that can complement both scientific and management programs. We showed that the thermally determined potential discharge areas were corroborated with hydrological (spring locations) and chemical (conservative tracers of groundwater) data. This study demonstrates how thermal remote sensing can form part of a comprehensive mapping framework to investigate groundwater resources over broad spatial scales. Copyright (c) 2013 John Wiley & Sons, Ltd.
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