Controls of Variability in the Laurentian Great Lakes Terrestrial Water Budget
Abstract The land surface hydrology of the North American Great Lakes region regulates ecosystem water availability, lake levels, vegetation dynamics, and agricultural practices. In this study, we analyze the Great Lakes terrestrial water budget using the Noah‐MP land surface model to characterize t...
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| Format: | Article |
| Language: | English |
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Wiley
2023-10-01
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| Series: | Water Resources Research |
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| Online Access: | https://doi.org/10.1029/2022WR033759 |
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| author | Samar Minallah Allison L. Steiner Valeriy Y. Ivanov Andrew W. Wood |
| author_facet | Samar Minallah Allison L. Steiner Valeriy Y. Ivanov Andrew W. Wood |
| author_sort | Samar Minallah |
| collection | DOAJ |
| description | Abstract The land surface hydrology of the North American Great Lakes region regulates ecosystem water availability, lake levels, vegetation dynamics, and agricultural practices. In this study, we analyze the Great Lakes terrestrial water budget using the Noah‐MP land surface model to characterize the catchment hydrological regimes and identify the dominant quantities contributing to the variability in the land surface hydrology. We show that the Great Lakes domain is not hydrologically uniform and strong spatiotemporal differences exist in the regulators of the hydrological budget at daily, monthly, and annual timescales. Subseasonally, precipitation and soil moisture explain nearly all the terrestrial water budget variability in the southern basins, while the northern latitudes are snow‐dominated regimes. Seasonal assessments reveal greater differences among the basins. Precipitation, evaporation, and runoff are the dominant sources of variability at lower latitudes, while at higher latitudes, terrestrial water storage in the form of ground snowpack and soil moisture has the leading role. Differences in land cover categorizations, for example, croplands, forests, or urban zones, further induce spatial differences in the hydrological characteristics. This quantification of variability in the terrestrial water cycle embedded at different temporal scales is important to assess the impacts of changes in climate and land cover on catchment sensitivities across the diverse hydroclimate of the Great Lakes region. |
| format | Article |
| id | doaj-art-3bbdb38feca74a2c8ea2f28e37cafcba |
| institution | OA Journals |
| issn | 0043-1397 1944-7973 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Water Resources Research |
| spelling | doaj-art-3bbdb38feca74a2c8ea2f28e37cafcba2025-08-20T02:35:08ZengWileyWater Resources Research0043-13971944-79732023-10-015910n/an/a10.1029/2022WR033759Controls of Variability in the Laurentian Great Lakes Terrestrial Water BudgetSamar Minallah0Allison L. Steiner1Valeriy Y. Ivanov2Andrew W. Wood3Department of Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USADepartment of Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USADepartment of Civil and Environmental Engineering University of Michigan Ann Arbor MI USAClimate and Global Dynamics Laboratory National Center for Atmospheric Research Boulder CO USAAbstract The land surface hydrology of the North American Great Lakes region regulates ecosystem water availability, lake levels, vegetation dynamics, and agricultural practices. In this study, we analyze the Great Lakes terrestrial water budget using the Noah‐MP land surface model to characterize the catchment hydrological regimes and identify the dominant quantities contributing to the variability in the land surface hydrology. We show that the Great Lakes domain is not hydrologically uniform and strong spatiotemporal differences exist in the regulators of the hydrological budget at daily, monthly, and annual timescales. Subseasonally, precipitation and soil moisture explain nearly all the terrestrial water budget variability in the southern basins, while the northern latitudes are snow‐dominated regimes. Seasonal assessments reveal greater differences among the basins. Precipitation, evaporation, and runoff are the dominant sources of variability at lower latitudes, while at higher latitudes, terrestrial water storage in the form of ground snowpack and soil moisture has the leading role. Differences in land cover categorizations, for example, croplands, forests, or urban zones, further induce spatial differences in the hydrological characteristics. This quantification of variability in the terrestrial water cycle embedded at different temporal scales is important to assess the impacts of changes in climate and land cover on catchment sensitivities across the diverse hydroclimate of the Great Lakes region.https://doi.org/10.1029/2022WR033759Great Lakesland surface hydrologyterrestrial water budgetprincipal component analysisland surface modelpartial least squares regression |
| spellingShingle | Samar Minallah Allison L. Steiner Valeriy Y. Ivanov Andrew W. Wood Controls of Variability in the Laurentian Great Lakes Terrestrial Water Budget Water Resources Research Great Lakes land surface hydrology terrestrial water budget principal component analysis land surface model partial least squares regression |
| title | Controls of Variability in the Laurentian Great Lakes Terrestrial Water Budget |
| title_full | Controls of Variability in the Laurentian Great Lakes Terrestrial Water Budget |
| title_fullStr | Controls of Variability in the Laurentian Great Lakes Terrestrial Water Budget |
| title_full_unstemmed | Controls of Variability in the Laurentian Great Lakes Terrestrial Water Budget |
| title_short | Controls of Variability in the Laurentian Great Lakes Terrestrial Water Budget |
| title_sort | controls of variability in the laurentian great lakes terrestrial water budget |
| topic | Great Lakes land surface hydrology terrestrial water budget principal component analysis land surface model partial least squares regression |
| url | https://doi.org/10.1029/2022WR033759 |
| work_keys_str_mv | AT samarminallah controlsofvariabilityinthelaurentiangreatlakesterrestrialwaterbudget AT allisonlsteiner controlsofvariabilityinthelaurentiangreatlakesterrestrialwaterbudget AT valeriyyivanov controlsofvariabilityinthelaurentiangreatlakesterrestrialwaterbudget AT andrewwwood controlsofvariabilityinthelaurentiangreatlakesterrestrialwaterbudget |