Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, China

Study region: The Qinghai Lake basin (QLB) Study focus: The lake system of the Qinghai-Tibet Plateau is a crucial component of the global ecosystem. Global warming has significantly altered its water levels. To comprehensively analyze the changes in Qinghai Lake's water level and forecast its f...

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Main Authors: Haibin Wang, Jiahong Liu, Zhuoran Luo, Sana Nazli, Lu Shi
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Journal of Hydrology: Regional Studies
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214581824005172
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author Haibin Wang
Jiahong Liu
Zhuoran Luo
Sana Nazli
Lu Shi
author_facet Haibin Wang
Jiahong Liu
Zhuoran Luo
Sana Nazli
Lu Shi
author_sort Haibin Wang
collection DOAJ
description Study region: The Qinghai Lake basin (QLB) Study focus: The lake system of the Qinghai-Tibet Plateau is a crucial component of the global ecosystem. Global warming has significantly altered its water levels. To comprehensively analyze the changes in Qinghai Lake's water level and forecast its future trends, this study employs the hydrothermal coupling equilibrium theory to quantify the impact of various climate change factors. Furthermore, it incorporates CMIP6 global climate model, utilizing the Digital Watershed Model to simulate future runoff. The future water level trends of Qinghai Lake are predicted in this study using multiple regression model, allowing for the estimation of its future inundation area. New hydrological insights for the region: The results showed that the contributions of precipitation, evaporation and underlying surface factors to the water inflow into Qinghai Lake contribute to 76.52 %, 13.97 % and 9.51 %. Notably, the QLB has experienced a progressive warming and humidification, leading to expectations of a rise in lake's water level to 3202.64 m by the year 2050. This rise will result in the expansion of the submerged area, primarily concentrated in proximity to the alluvial plains. Furthermore, it will have implications for approximately 2.8 km of the Qinghai-Tibet Railway tracks. This study reveals hydrological responses of the lake to climate change and forecasts future water level trends, offering valuable insights into regional evolution and associated environmental implications.
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language English
publishDate 2025-02-01
publisher Elsevier
record_format Article
series Journal of Hydrology: Regional Studies
spelling doaj-art-39be98212c6f4d268726088d2f1a84fc2025-01-22T05:42:18ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102168Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, ChinaHaibin Wang0Jiahong Liu1Zhuoran Luo2Sana Nazli3Lu Shi4State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; Key Laboratory of River Basin Digital Twinning of Ministry of Water Resources, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; Key Laboratory of River Basin Digital Twinning of Ministry of Water Resources, Beijing 100038, China; Corresponding author at: State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China.School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; Key Laboratory of River Basin Digital Twinning of Ministry of Water Resources, Beijing 100038, ChinaHydrology and Water Resources Forecast Center of Qinghai Province, Xining 810001, ChinaStudy region: The Qinghai Lake basin (QLB) Study focus: The lake system of the Qinghai-Tibet Plateau is a crucial component of the global ecosystem. Global warming has significantly altered its water levels. To comprehensively analyze the changes in Qinghai Lake's water level and forecast its future trends, this study employs the hydrothermal coupling equilibrium theory to quantify the impact of various climate change factors. Furthermore, it incorporates CMIP6 global climate model, utilizing the Digital Watershed Model to simulate future runoff. The future water level trends of Qinghai Lake are predicted in this study using multiple regression model, allowing for the estimation of its future inundation area. New hydrological insights for the region: The results showed that the contributions of precipitation, evaporation and underlying surface factors to the water inflow into Qinghai Lake contribute to 76.52 %, 13.97 % and 9.51 %. Notably, the QLB has experienced a progressive warming and humidification, leading to expectations of a rise in lake's water level to 3202.64 m by the year 2050. This rise will result in the expansion of the submerged area, primarily concentrated in proximity to the alluvial plains. Furthermore, it will have implications for approximately 2.8 km of the Qinghai-Tibet Railway tracks. This study reveals hydrological responses of the lake to climate change and forecasts future water level trends, offering valuable insights into regional evolution and associated environmental implications.http://www.sciencedirect.com/science/article/pii/S2214581824005172Water levelsClimate changeDigital watershed modelQinghai lake
spellingShingle Haibin Wang
Jiahong Liu
Zhuoran Luo
Sana Nazli
Lu Shi
Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, China
Journal of Hydrology: Regional Studies
Water levels
Climate change
Digital watershed model
Qinghai lake
title Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, China
title_full Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, China
title_fullStr Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, China
title_full_unstemmed Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, China
title_short Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, China
title_sort hydrologic response and prediction of future water level changes in qinghai lake of tibet plateau china
topic Water levels
Climate change
Digital watershed model
Qinghai lake
url http://www.sciencedirect.com/science/article/pii/S2214581824005172
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