| Title | Evaluation of three evapotranspiration products over the Canadian landmass |
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| Author | Wang, S ; Pan, M;
Mu, Q |
| Source | Amerian Geophysical Union 2013 Conference, abstracts; 2013 p. 1 |
| Links | Online - En ligne
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| Year | 2013 |
| Alt Series | Earth Sciences Sector, Contribution Series 20130192 |
| Publisher | Amerian Geophysical Union |
| Meeting | Amerian Geophysical Union 2013 Conference; San Francisco; CA; December 9-13, 2013 |
| Document | book |
| Lang. | English |
| Media | on-line; digital |
| File format | html |
| Province | British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut; Canada |
| NTS | 1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Subjects | hydrogeology; evapotranspiration coefficient; evaporation; precipitation; hydrologic environment; hydrologic properties |
| Program | Groundwater Geoscience Aquifer Assessment &
support to mapping |
| Abstract | Evapotranspiration (ET) is the water lost from the Earth¿s surfaces to the atmosphere. Subtracting ET from precipitation results in the available water to a hydrologic system for recharge to subsurface
aquifers and to stream flows. ET is a strong indicator of water availability in response to changes in climate and land use. Thus, the characterization of the spatial and seasonal variations of ET is critical to sustainable management of water
resources. Remote sensing has been playing an important role in mapping large scale ET and providing useful information to fill our knowledge gaps. This study compares three mainstream ET products obtained from the EALCO, MODIS, and VIC models over
the Canadian landmass. The three ET products generally showed good agreement over the southern part of the landmass, but the differences over the northern part (i.e., the arctic, taiga, and cordillera regions) were found substantial. The impact of
the uncertainties in the ET data on assessing the regional water budget is discussed. |
| Summary | (Plain Language Summary, not published)
Evapotranspiration (ET) is the water lost from the Earth¿s surfaces to the atmosphere. It determines the available water for groundwater recharge and
stream flows. ET is a strong indicator of water availability in response to changes in climate and land use. Thus, the characterization of the spatial and seasonal variations of ET is critical to sustainable management of water resources. Remote
sensing has been playing an important role in mapping large scale ET and providing useful information to fill our knowledge gaps. This study compares three mainstream ET products obtained from the EALCO, MODIS, and VIC models over the Canadian
landmass. The three ET products generally showed good agreement over the southern part of the landmass, but the differences over the northern part (i.e., the arctic, taiga, and cordillera regions) were found substantial. The impact of the
uncertainties in the ET data on assessing the regional water budget is discussed. |
| GEOSCAN ID | 292928 |
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