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Proc. IAHS, 379, 31-36, 2018
https://doi.org/10.5194/piahs-379-31-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Pre-conference publication
05 Jun 2018
Stability and tilting of regional water cycle over Tarim Basin
Hongquan Zhang1 and Zhuguo Ma2 1McDougall School of Petroleum Engineering, the University of Tulsa, Tulsa, OK 74104, USA
2Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Chinese Academy of Science, Beijing 100029, China
Abstract. The Tarim Basin is located upwind of the Gobi Desert where individual deserts have expanded significantly during the last 50 years. In recent history, stable runoff in the Tarim Basin has been observed despite the Lop Nur dry up and dramatic water consumption shift from east to west. This regional water cycle stability is conceptually explained based on the relationship between precipitation and evapotranspiration. The water consumption imbalance is caused by human activities near the river sources, which tilts the humidity profile over the basin. As a result, more water vapour spills from the western part of the basin and causes precipitation to increase in adjacent areas. At the same time, the Westerlies carry the low humidity air mass out of the eastern part of the basin to make the downwind Gobi Desert and surrounding areas drier. Therefore, the observed wetting on the west and drying on the east of northwest China are coupled.
Citation: Zhang, H. and Ma, Z.: Stability and tilting of regional water cycle over Tarim Basin, Proc. IAHS, 379, 31-36, https://doi.org/10.5194/piahs-379-31-2018, 2018.
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Short summary
The water consumption imbalance in Tarim Basin is caused by human activities and tilts the humidity profile over the basin. As a result, more water vapour spills from the western part of the basin and causes precipitation to increase in adjacent areas. At the same time, the Westerlies carry the low humidity air mass out of the eastern part of the basin to make the downwind Gobi Desert and surrounding areas drier.
The water consumption imbalance in Tarim Basin is caused by human activities and tilts the...
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