Strong Under‐Ice Heating of Central Asian Shallow Lakes
Abstract Shallow lakes (<2 m depth) of Central Asian, receiving strong solar radiation and low precipitation, are sensitive to atmospheric forcing because of their low heat capacity, yet their under‐ice thermal conditions remain poorly investigated. We conducted the first complete ice season moni...
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| Format: | Article |
| Language: | English |
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Wiley
2025-07-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL114501 |
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| author | Puzhen Huo Peng Lu Matti Leppäranta Georgiy Kirillin Bin Cheng Fei Xie Zhijun Li |
| author_facet | Puzhen Huo Peng Lu Matti Leppäranta Georgiy Kirillin Bin Cheng Fei Xie Zhijun Li |
| author_sort | Puzhen Huo |
| collection | DOAJ |
| description | Abstract Shallow lakes (<2 m depth) of Central Asian, receiving strong solar radiation and low precipitation, are sensitive to atmospheric forcing because of their low heat capacity, yet their under‐ice thermal conditions remain poorly investigated. We conducted the first complete ice season monitoring of Lake Ulansu (Ulansuhai, Wuliangsuhai), revealing unique thermal behavior. The lake was salinity stratified (<3‰), stabilizing the lower water layer and allowing the water temperature to reach 10°C before break‐up. The solar radiation absorbed by the water (Qsw) drove the water–ice heat flux, with approximately 82% of Qsw returning to the ice base, facilitating a rapid shift from convective mixing to stable stratification. These findings provide key insights into the thermal regimes of Central Asian shallow lakes, informing climate models and ecological assessments for more than 10,000 similar lakes in the region. |
| format | Article |
| id | doaj-art-5c47ad3ff8974b369249486ccbd7324f |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-5c47ad3ff8974b369249486ccbd7324f2025-08-20T03:58:44ZengWileyGeophysical Research Letters0094-82761944-80072025-07-015214n/an/a10.1029/2024GL114501Strong Under‐Ice Heating of Central Asian Shallow LakesPuzhen Huo0Peng Lu1Matti Leppäranta2Georgiy Kirillin3Bin Cheng4Fei Xie5Zhijun Li6State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian ChinaState Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian ChinaUniversity of Helsinki Helsinki FinlandDepartment of Ecohydrology Leibniz‐Institute of Freshwater Ecology and Inland Fisheries (IGB) Berlin GermanyFinnish Meteorological Institute Helsinki FinlandState Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian ChinaState Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian ChinaAbstract Shallow lakes (<2 m depth) of Central Asian, receiving strong solar radiation and low precipitation, are sensitive to atmospheric forcing because of their low heat capacity, yet their under‐ice thermal conditions remain poorly investigated. We conducted the first complete ice season monitoring of Lake Ulansu (Ulansuhai, Wuliangsuhai), revealing unique thermal behavior. The lake was salinity stratified (<3‰), stabilizing the lower water layer and allowing the water temperature to reach 10°C before break‐up. The solar radiation absorbed by the water (Qsw) drove the water–ice heat flux, with approximately 82% of Qsw returning to the ice base, facilitating a rapid shift from convective mixing to stable stratification. These findings provide key insights into the thermal regimes of Central Asian shallow lakes, informing climate models and ecological assessments for more than 10,000 similar lakes in the region.https://doi.org/10.1029/2024GL114501lake iceCentral Asia shallow lakewater‐ice heat fluxunder‐ice thermal conditionssolar radiationlake‐atmosphere heat exchange |
| spellingShingle | Puzhen Huo Peng Lu Matti Leppäranta Georgiy Kirillin Bin Cheng Fei Xie Zhijun Li Strong Under‐Ice Heating of Central Asian Shallow Lakes Geophysical Research Letters lake ice Central Asia shallow lake water‐ice heat flux under‐ice thermal conditions solar radiation lake‐atmosphere heat exchange |
| title | Strong Under‐Ice Heating of Central Asian Shallow Lakes |
| title_full | Strong Under‐Ice Heating of Central Asian Shallow Lakes |
| title_fullStr | Strong Under‐Ice Heating of Central Asian Shallow Lakes |
| title_full_unstemmed | Strong Under‐Ice Heating of Central Asian Shallow Lakes |
| title_short | Strong Under‐Ice Heating of Central Asian Shallow Lakes |
| title_sort | strong under ice heating of central asian shallow lakes |
| topic | lake ice Central Asia shallow lake water‐ice heat flux under‐ice thermal conditions solar radiation lake‐atmosphere heat exchange |
| url | https://doi.org/10.1029/2024GL114501 |
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