Hydro-climatic Characteristics of Yarlung Zangbo River Basin since the Last Glacial Maximum
Global climate changes significantly impact the water condition of big rivers in glacierized high mountains. However, there is a lack of studies on hydrological changes within river basins caused by climate changes over a geological timescale due to the impossibility of direct observations. In this...
Published in: | Advances in Atmospheric Sciences |
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ftchinacadscimhe:oai:ir.imde.ac.cn:131551/56399 2023-05-15T16:40:51+02:00 Hydro-climatic Characteristics of Yarlung Zangbo River Basin since the Last Glacial Maximum Liu, Shuang Hu, Kaiheng Liu, Weiming Carling, Paul A. 2022-01-12 http://ir.imde.ac.cn/handle/131551/56399 https://doi.org/10.1007/s00376-021-1150-7 英语 eng SCIENCE PRESS ADVANCES IN ATMOSPHERIC SCIENCES http://ir.imde.ac.cn/handle/131551/56399 doi:10.1007/s00376-021-1150-7 Yarlung Zangbo River Basin Indian summer monsoon glacier change runoff variability since the LGM OCEAN SUMMER MONSOON TIBETAN PLATEAU ICE-SHEET INDIAN MONSOON NORTH-ATLANTIC TSANGPO RIVER EVOLUTION RUNOFF LAKE VARIABILITY Meteorology & Atmospheric Sciences 期刊论文 2022 ftchinacadscimhe https://doi.org/10.1007/s00376-021-1150-7 2022-12-19T18:29:37Z Global climate changes significantly impact the water condition of big rivers in glacierized high mountains. However, there is a lack of studies on hydrological changes within river basins caused by climate changes over a geological timescale due to the impossibility of direct observations. In this study, we examine the hydro-climatic variation of the Yarlung Zangbo River Basin in the Tibet Plateau since the Last Glacial Maximum (LGM) by combining delta O-18 proxy records in Indian and Omani caves with the simulated Indian summer monsoon, surface temperature, precipitation, evapotranspiration and runoff via the Community Climate System Model and the reconstructed glacier coverage via the Parallel Ice Sheet Model. The mean river runoff was kept at a low level of 145 billion cubic meters per year until an abrupt increase at a rate of 8.7 million cubic meters per year in the Bolling-Allerod interval (BA). The annual runoff reached a maximum of 250 billion cubic meters in the early Holocene and then reduced to the current value of 180 billion cubic meters at a rate of 6.4 million cubic meters per year. The low runoff in the LGM and Heinrich Stadial 1 (HS1) is likely attributed to such a small contribution of precipitation to runoff and the large glacier cover. The percentage of precipitation to runoff was only 20% during the LGM and HS1. Comparison of glacier area among different periods indicates that the fastest deglaciation occurred during the late HS1, when nearly 60% of glacier area disappeared in the middle reach, 50% in the upper reach, and 30% in the lower reach. The rapid deglaciation and increasing runoff between the late HS1 and BA may have accelerated widespread ice-dam breaches and led to extreme outburst flood events. Combining local geological proxy records and regional simulations could be a useful approach for the study of paleo-hydrologic variations in big river basins. Report Ice Sheet North Atlantic IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) Indian Big River ENVELOPE(-125.196,-125.196,72.501,72.501) Advances in Atmospheric Sciences 39 3 415 426 |
institution |
Open Polar |
collection |
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) |
op_collection_id |
ftchinacadscimhe |
language |
English |
topic |
Yarlung Zangbo River Basin Indian summer monsoon glacier change runoff variability since the LGM OCEAN SUMMER MONSOON TIBETAN PLATEAU ICE-SHEET INDIAN MONSOON NORTH-ATLANTIC TSANGPO RIVER EVOLUTION RUNOFF LAKE VARIABILITY Meteorology & Atmospheric Sciences |
spellingShingle |
Yarlung Zangbo River Basin Indian summer monsoon glacier change runoff variability since the LGM OCEAN SUMMER MONSOON TIBETAN PLATEAU ICE-SHEET INDIAN MONSOON NORTH-ATLANTIC TSANGPO RIVER EVOLUTION RUNOFF LAKE VARIABILITY Meteorology & Atmospheric Sciences Liu, Shuang Hu, Kaiheng Liu, Weiming Carling, Paul A. Hydro-climatic Characteristics of Yarlung Zangbo River Basin since the Last Glacial Maximum |
topic_facet |
Yarlung Zangbo River Basin Indian summer monsoon glacier change runoff variability since the LGM OCEAN SUMMER MONSOON TIBETAN PLATEAU ICE-SHEET INDIAN MONSOON NORTH-ATLANTIC TSANGPO RIVER EVOLUTION RUNOFF LAKE VARIABILITY Meteorology & Atmospheric Sciences |
description |
Global climate changes significantly impact the water condition of big rivers in glacierized high mountains. However, there is a lack of studies on hydrological changes within river basins caused by climate changes over a geological timescale due to the impossibility of direct observations. In this study, we examine the hydro-climatic variation of the Yarlung Zangbo River Basin in the Tibet Plateau since the Last Glacial Maximum (LGM) by combining delta O-18 proxy records in Indian and Omani caves with the simulated Indian summer monsoon, surface temperature, precipitation, evapotranspiration and runoff via the Community Climate System Model and the reconstructed glacier coverage via the Parallel Ice Sheet Model. The mean river runoff was kept at a low level of 145 billion cubic meters per year until an abrupt increase at a rate of 8.7 million cubic meters per year in the Bolling-Allerod interval (BA). The annual runoff reached a maximum of 250 billion cubic meters in the early Holocene and then reduced to the current value of 180 billion cubic meters at a rate of 6.4 million cubic meters per year. The low runoff in the LGM and Heinrich Stadial 1 (HS1) is likely attributed to such a small contribution of precipitation to runoff and the large glacier cover. The percentage of precipitation to runoff was only 20% during the LGM and HS1. Comparison of glacier area among different periods indicates that the fastest deglaciation occurred during the late HS1, when nearly 60% of glacier area disappeared in the middle reach, 50% in the upper reach, and 30% in the lower reach. The rapid deglaciation and increasing runoff between the late HS1 and BA may have accelerated widespread ice-dam breaches and led to extreme outburst flood events. Combining local geological proxy records and regional simulations could be a useful approach for the study of paleo-hydrologic variations in big river basins. |
format |
Report |
author |
Liu, Shuang Hu, Kaiheng Liu, Weiming Carling, Paul A. |
author_facet |
Liu, Shuang Hu, Kaiheng Liu, Weiming Carling, Paul A. |
author_sort |
Liu, Shuang |
title |
Hydro-climatic Characteristics of Yarlung Zangbo River Basin since the Last Glacial Maximum |
title_short |
Hydro-climatic Characteristics of Yarlung Zangbo River Basin since the Last Glacial Maximum |
title_full |
Hydro-climatic Characteristics of Yarlung Zangbo River Basin since the Last Glacial Maximum |
title_fullStr |
Hydro-climatic Characteristics of Yarlung Zangbo River Basin since the Last Glacial Maximum |
title_full_unstemmed |
Hydro-climatic Characteristics of Yarlung Zangbo River Basin since the Last Glacial Maximum |
title_sort |
hydro-climatic characteristics of yarlung zangbo river basin since the last glacial maximum |
publisher |
SCIENCE PRESS |
publishDate |
2022 |
url |
http://ir.imde.ac.cn/handle/131551/56399 https://doi.org/10.1007/s00376-021-1150-7 |
long_lat |
ENVELOPE(-125.196,-125.196,72.501,72.501) |
geographic |
Indian Big River |
geographic_facet |
Indian Big River |
genre |
Ice Sheet North Atlantic |
genre_facet |
Ice Sheet North Atlantic |
op_relation |
ADVANCES IN ATMOSPHERIC SCIENCES http://ir.imde.ac.cn/handle/131551/56399 doi:10.1007/s00376-021-1150-7 |
op_doi |
https://doi.org/10.1007/s00376-021-1150-7 |
container_title |
Advances in Atmospheric Sciences |
container_volume |
39 |
container_issue |
3 |
container_start_page |
415 |
op_container_end_page |
426 |
_version_ |
1766031276601507840 |