| Title | Methods for estimating surface water storage changes and their evaluations |
| |
| Author | Wang, S ; Li, J;
Russell, H |
| Source | Journal of Hydrometeorology vol. 24, issue 3, 2023 p. 445-461, https://doi.org/10.1175/JHM-D-22-0098.1  Open Access |
| Image |  |
| Year | 2023 |
| Alt Series | Natural Resources Canada, Contribution Series 20220445 |
| Publisher | American Meteorological Society |
| Document | serial |
| Lang. | English |
| Media | paper; digital; on-line |
| File format | pdf; html |
| Province | Canada; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut |
| 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 | Science and Technology; evaporation; remote sensing; Hydrology |
| Illustrations | location maps; tables; charts; cross-plots; graphs |
| Program | Canada Centre for Remote Sensing Remote Sensing Science Program - Optical methods and applications |
| Released | 2023 03 08 |
| Abstract | Developing effective methods for estimating regional-scale surface water storage change (dSW) has become increasingly important for water resources studies and environmental impact assessment. Three
methods for estimating monthly dSW are proposed in this study, of which one is based on land surface runoff and two use waterbody water budgets. Water areas observed by Landsat satellites for Canada's entire landmass are used for evaluation of the
results. The surface runoff method achieved the least satisfactory results, with large errors in cold season or dry regions. The two water-budget methods demonstrated significant improvements, particularly when water area dynamics is considered in
the estimation of waterbody water budget. The three methods performed consistently across different climate regions in the country, and showed better correlations with observations over wet climate regions than over dry regions with poorly connected
hydrological system. The results also showed impact of glacier and permanent snow melts over the Rocky Mountains on basin-scale surface water dynamics. The methods and outputs from this study can be used for calibrating and validating hydrological
and climate models, assessing climate change and human disturbance impacts on regional water resources, and filling the dSW data gaps in GRACE-based total water storage decompositions studies. |
| Summary | (Plain Language Summary, not published)
Quantifying surface water storage change has become increasingly important for water resources studies and environmental impact assessment, but there are
no robust methods available for regional-scale estimations. New methods are proposed in this study using water budget approach and observations by Landsat satellites. Canada’s entire landmass are used as the study region. The methods and outputs from
this study can be used for calibrating and validating hydrological and climate models, assessing climate change and human disturbance impacts on regional water resources, and filling the surface water data gaps in GRACE-based total water storage
decompositions studies. |
| GEOSCAN ID | 331248 |
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