Quantifying the hydrological contribution of glaciers in southwestern Norway at the beginning of the 21st century
Study region: The research is conducted for nineteen glacierized basins in southwestern Norway during the early 21st century. Study focus: The study utilizes a process-based, distributed snow evolution model to carry out high-resolution simulations of glacier surface mass balance and catchment runof...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-04-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581825000291 |
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| author | Yongmei Gong Sangita Tomar Irina Rogozhina Stefano Basso |
| author_facet | Yongmei Gong Sangita Tomar Irina Rogozhina Stefano Basso |
| author_sort | Yongmei Gong |
| collection | DOAJ |
| description | Study region: The research is conducted for nineteen glacierized basins in southwestern Norway during the early 21st century. Study focus: The study utilizes a process-based, distributed snow evolution model to carry out high-resolution simulations of glacier surface mass balance and catchment runoff. The model is constrained by observations from fifteen glaciers and evaluated against measured discharge from eight river basins. We investigate the temporal and spatial distribution of surface mass balance and catchment runoff, and analyze the contribution of rainfall, snow and glacier meltwater to the total runoff. Finally, we examine the relationship between interannual variability of discharge and glacier cover. New hydrological insights for the region: The study reveals that glaciers in our study region provide 20.9 % and 19.5 % of the annual and summer runoff on average across different river basins. Snow meltwater is the prevailing runoff component throughout the year across most basins, whereas glacier meltwater is the primary contributor to the summer and autumn runoff for basins with glacier cover > 30 %.The interannual variability of discharge decreases with increasing glacier cover without reaching a local minimum. The sensitivity of discharge variability to temperature exceeds that to precipitation only at high glacier cover (42.1 %). |
| format | Article |
| id | doaj-art-71710da35a0344b49e1531712817a6ac |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-71710da35a0344b49e1531712817a6ac2025-01-31T05:11:20ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-04-0158102205Quantifying the hydrological contribution of glaciers in southwestern Norway at the beginning of the 21st centuryYongmei Gong0Sangita Tomar1Irina Rogozhina2Stefano Basso3Department of Geography, Norwegian University of Science and Technology, Trondheim, Norway; IPCC WGI TSU, Universite Paris Saclay, Paris, France; Correspondence to: Universite Paris Saclay.Department of Geography, Norwegian University of Science and Technology, Trondheim, NorwayDepartment of Geography, Norwegian University of Science and Technology, Trondheim, Norway; Center for Advanced Research in Arid Zones (CEAZA), Raúl Bitrán #1305, Campus Andrés Bello Universidad de La Serena, La Serena, Región de Coquimbo, Chile; Faculty of Engineering, University of La Serena, ChileDepartment of Geography, Norwegian University of Science and Technology, Trondheim, NorwayStudy region: The research is conducted for nineteen glacierized basins in southwestern Norway during the early 21st century. Study focus: The study utilizes a process-based, distributed snow evolution model to carry out high-resolution simulations of glacier surface mass balance and catchment runoff. The model is constrained by observations from fifteen glaciers and evaluated against measured discharge from eight river basins. We investigate the temporal and spatial distribution of surface mass balance and catchment runoff, and analyze the contribution of rainfall, snow and glacier meltwater to the total runoff. Finally, we examine the relationship between interannual variability of discharge and glacier cover. New hydrological insights for the region: The study reveals that glaciers in our study region provide 20.9 % and 19.5 % of the annual and summer runoff on average across different river basins. Snow meltwater is the prevailing runoff component throughout the year across most basins, whereas glacier meltwater is the primary contributor to the summer and autumn runoff for basins with glacier cover > 30 %.The interannual variability of discharge decreases with increasing glacier cover without reaching a local minimum. The sensitivity of discharge variability to temperature exceeds that to precipitation only at high glacier cover (42.1 %).http://www.sciencedirect.com/science/article/pii/S2214581825000291NorwayGlacierized basinsGlacio-hydrological modelingGlacier compensation effectRunoff compositionRunoff variability |
| spellingShingle | Yongmei Gong Sangita Tomar Irina Rogozhina Stefano Basso Quantifying the hydrological contribution of glaciers in southwestern Norway at the beginning of the 21st century Journal of Hydrology: Regional Studies Norway Glacierized basins Glacio-hydrological modeling Glacier compensation effect Runoff composition Runoff variability |
| title | Quantifying the hydrological contribution of glaciers in southwestern Norway at the beginning of the 21st century |
| title_full | Quantifying the hydrological contribution of glaciers in southwestern Norway at the beginning of the 21st century |
| title_fullStr | Quantifying the hydrological contribution of glaciers in southwestern Norway at the beginning of the 21st century |
| title_full_unstemmed | Quantifying the hydrological contribution of glaciers in southwestern Norway at the beginning of the 21st century |
| title_short | Quantifying the hydrological contribution of glaciers in southwestern Norway at the beginning of the 21st century |
| title_sort | quantifying the hydrological contribution of glaciers in southwestern norway at the beginning of the 21st century |
| topic | Norway Glacierized basins Glacio-hydrological modeling Glacier compensation effect Runoff composition Runoff variability |
| url | http://www.sciencedirect.com/science/article/pii/S2214581825000291 |
| work_keys_str_mv | AT yongmeigong quantifyingthehydrologicalcontributionofglaciersinsouthwesternnorwayatthebeginningofthe21stcentury AT sangitatomar quantifyingthehydrologicalcontributionofglaciersinsouthwesternnorwayatthebeginningofthe21stcentury AT irinarogozhina quantifyingthehydrologicalcontributionofglaciersinsouthwesternnorwayatthebeginningofthe21stcentury AT stefanobasso quantifyingthehydrologicalcontributionofglaciersinsouthwesternnorwayatthebeginningofthe21stcentury |