Long‐distance atmospheric moisture dominates water budget in permafrost regions of the Central Qinghai‐Tibet plateau
Abstract Precipitation plays an important role in permafrost hydrology; it can alter the hydrothermal condition of the active layer and even influence the permafrost aggradation or degradation. Moisture recycling from evaporation and transpiration can greatly contribute to local precipitation in som...
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crwiley:10.1002/hyp.13871 2024-09-15T18:29:47+00:00 Long‐distance atmospheric moisture dominates water budget in permafrost regions of the Central Qinghai‐Tibet plateau Zhu, Xiaofan Wu, Tonghua Hu, Guojie Wang, Shengjie Wu, Xiaodong Li, Ren Wang, Weiguo Wen, Amin Ni, Jie Li, Xiangfei Hao, Junming National Natural Science Foundation of China 2020 http://dx.doi.org/10.1002/hyp.13871 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.13871 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.13871 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.13871 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 34, issue 22, page 4280-4294 ISSN 0885-6087 1099-1085 journal-article 2020 crwiley https://doi.org/10.1002/hyp.13871 2024-08-20T04:17:12Z Abstract Precipitation plays an important role in permafrost hydrology; it can alter the hydrothermal condition of the active layer and even influence the permafrost aggradation or degradation. Moisture recycling from evaporation and transpiration can greatly contribute to local precipitation in some regions. This study selected four monitoring sites and used an isotope mixing model to investigate local moisture recycling in permafrost regions of the central Qinghai‐Tibet Plateau (QTP). The results showed that the local water vapour flux in the summer and autumn were dominantly influenced by westerlies and the Indian monsoon. Moistures for precipitation in Wudaoliang (WDL) and Fenghuoshan (FHS) mainly came from the western QTP, eastern Tianshan Mountains, western Qilian Mountains, and the surrounding regions. In comparsion, more than half of precipitation at Tanggula (TGL) was mostly sourced from the Indian monsoon. Local moisture recycling ratios at the four sites ranged from 14% ± 3.8% to 31.6% ± 4.8%, and depended on the soil moisture and relative humidity. In particular, the higher soil moisture and relative humidity promoted local moisture recycling, but frozen ground might be a potential influencing factor as well. The moisture recycling ratios of the study area were consistent with the results from both the Qinghai Lake Basin and the Nam Co Basin, but differed from those of the northwestern QTP. This difference may indirectly confirm the great spatial variability in precipitation on the QTP. Moreover, the rising air temperature and ground temperature, increasing precipitation, higher soil moisture, higher vegetation cover, and expanding lakes in the study area may be conductive to enhancing future local moisture recycling by altering ground surface conditions and facilitating the land surface evaporation and plant transpiration. Article in Journal/Newspaper permafrost Wiley Online Library Hydrological Processes 34 22 4280 4294 |
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Open Polar |
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Wiley Online Library |
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English |
description |
Abstract Precipitation plays an important role in permafrost hydrology; it can alter the hydrothermal condition of the active layer and even influence the permafrost aggradation or degradation. Moisture recycling from evaporation and transpiration can greatly contribute to local precipitation in some regions. This study selected four monitoring sites and used an isotope mixing model to investigate local moisture recycling in permafrost regions of the central Qinghai‐Tibet Plateau (QTP). The results showed that the local water vapour flux in the summer and autumn were dominantly influenced by westerlies and the Indian monsoon. Moistures for precipitation in Wudaoliang (WDL) and Fenghuoshan (FHS) mainly came from the western QTP, eastern Tianshan Mountains, western Qilian Mountains, and the surrounding regions. In comparsion, more than half of precipitation at Tanggula (TGL) was mostly sourced from the Indian monsoon. Local moisture recycling ratios at the four sites ranged from 14% ± 3.8% to 31.6% ± 4.8%, and depended on the soil moisture and relative humidity. In particular, the higher soil moisture and relative humidity promoted local moisture recycling, but frozen ground might be a potential influencing factor as well. The moisture recycling ratios of the study area were consistent with the results from both the Qinghai Lake Basin and the Nam Co Basin, but differed from those of the northwestern QTP. This difference may indirectly confirm the great spatial variability in precipitation on the QTP. Moreover, the rising air temperature and ground temperature, increasing precipitation, higher soil moisture, higher vegetation cover, and expanding lakes in the study area may be conductive to enhancing future local moisture recycling by altering ground surface conditions and facilitating the land surface evaporation and plant transpiration. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Zhu, Xiaofan Wu, Tonghua Hu, Guojie Wang, Shengjie Wu, Xiaodong Li, Ren Wang, Weiguo Wen, Amin Ni, Jie Li, Xiangfei Hao, Junming |
spellingShingle |
Zhu, Xiaofan Wu, Tonghua Hu, Guojie Wang, Shengjie Wu, Xiaodong Li, Ren Wang, Weiguo Wen, Amin Ni, Jie Li, Xiangfei Hao, Junming Long‐distance atmospheric moisture dominates water budget in permafrost regions of the Central Qinghai‐Tibet plateau |
author_facet |
Zhu, Xiaofan Wu, Tonghua Hu, Guojie Wang, Shengjie Wu, Xiaodong Li, Ren Wang, Weiguo Wen, Amin Ni, Jie Li, Xiangfei Hao, Junming |
author_sort |
Zhu, Xiaofan |
title |
Long‐distance atmospheric moisture dominates water budget in permafrost regions of the Central Qinghai‐Tibet plateau |
title_short |
Long‐distance atmospheric moisture dominates water budget in permafrost regions of the Central Qinghai‐Tibet plateau |
title_full |
Long‐distance atmospheric moisture dominates water budget in permafrost regions of the Central Qinghai‐Tibet plateau |
title_fullStr |
Long‐distance atmospheric moisture dominates water budget in permafrost regions of the Central Qinghai‐Tibet plateau |
title_full_unstemmed |
Long‐distance atmospheric moisture dominates water budget in permafrost regions of the Central Qinghai‐Tibet plateau |
title_sort |
long‐distance atmospheric moisture dominates water budget in permafrost regions of the central qinghai‐tibet plateau |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/hyp.13871 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.13871 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.13871 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.13871 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Hydrological Processes volume 34, issue 22, page 4280-4294 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.13871 |
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Hydrological Processes |
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34 |
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