Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan Plateau
This study aims to simulate the lake ice conditions in the Nam Co lake using a lake ice model, which is a one-dimensional physics-based model that utilizes enthalpy as the predictor variable. We modified the air density schemes within the model to improve the accuracy of the lake ice simulation. Add...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/17/3088 |
| _version_ | 1797581803973771264 |
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| author | Yajun Si Zhi Li Xiaocong Wang Yimin Liu Jiming Jin |
| author_facet | Yajun Si Zhi Li Xiaocong Wang Yimin Liu Jiming Jin |
| author_sort | Yajun Si |
| collection | DOAJ |
| description | This study aims to simulate the lake ice conditions in the Nam Co lake using a lake ice model, which is a one-dimensional physics-based model that utilizes enthalpy as the predictor variable. We modified the air density schemes within the model to improve the accuracy of the lake ice simulation. Additionally, the process of lake ice sublimation was included, and the effect of lake water salinity on the freezing point was considered. Using the improved lake ice model, we simulated lake surface water temperature, lake ice thickness, and interannual variations in lake ice phenology, and we compared these results with observations at Nam Co. The results demonstrate that the improved model better reproduces the lake surface water temperature, lake ice thickness, and lake ice phenology at Nam Co. Additionally, the thin air density affects lake processes by weakening sensible heat and latent heat, which ultimately leads to a delayed ice-on date and a slightly earlier ice-free date in Nam Co. This study contributes to an enhanced understanding of the freeze–thaw processes in Nam Co and reduces the biases in lake ice simulation on the Tibetan Plateau through the lake model improvement. |
| first_indexed | 2024-03-10T23:10:49Z |
| format | Article |
| id | doaj.art-c0fe6953cc7e4971bc646d2dd90f1e5c |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T23:10:49Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-c0fe6953cc7e4971bc646d2dd90f1e5c2023-11-19T09:02:05ZengMDPI AGWater2073-44412023-08-011517308810.3390/w15173088Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan PlateauYajun Si0Zhi Li1Xiaocong Wang2Yimin Liu3Jiming Jin4College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, ChinaCollege of Natural Resources and Environment, Northwest A&F University, Yangling 712100, ChinaState Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaState Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaHubei Key Laboratory of Petroleum Geochemistry and Environment, Yangtze University, Wuhan 430100, ChinaThis study aims to simulate the lake ice conditions in the Nam Co lake using a lake ice model, which is a one-dimensional physics-based model that utilizes enthalpy as the predictor variable. We modified the air density schemes within the model to improve the accuracy of the lake ice simulation. Additionally, the process of lake ice sublimation was included, and the effect of lake water salinity on the freezing point was considered. Using the improved lake ice model, we simulated lake surface water temperature, lake ice thickness, and interannual variations in lake ice phenology, and we compared these results with observations at Nam Co. The results demonstrate that the improved model better reproduces the lake surface water temperature, lake ice thickness, and lake ice phenology at Nam Co. Additionally, the thin air density affects lake processes by weakening sensible heat and latent heat, which ultimately leads to a delayed ice-on date and a slightly earlier ice-free date in Nam Co. This study contributes to an enhanced understanding of the freeze–thaw processes in Nam Co and reduces the biases in lake ice simulation on the Tibetan Plateau through the lake model improvement.https://www.mdpi.com/2073-4441/15/17/3088Tibetan Plateaulake ice phenologyair densitynumerical simulations |
| spellingShingle | Yajun Si Zhi Li Xiaocong Wang Yimin Liu Jiming Jin Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan Plateau Water Tibetan Plateau lake ice phenology air density numerical simulations |
| title | Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan Plateau |
| title_full | Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan Plateau |
| title_fullStr | Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan Plateau |
| title_full_unstemmed | Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan Plateau |
| title_short | Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan Plateau |
| title_sort | lake ice simulation and evaluation for a typical lake on the tibetan plateau |
| topic | Tibetan Plateau lake ice phenology air density numerical simulations |
| url | https://www.mdpi.com/2073-4441/15/17/3088 |
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