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000904466 1001_ $$0P:(DE-HGF)0$$aLi, Mengna$$b0
000904466 245__ $$aA first investigation of hydrogeology and hydrogeophysics of the Maqu catchment in the Yellow River source region
000904466 260__ $$aKatlenburg-Lindau$$bCopernics Publications$$c2021
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000904466 520__ $$aThe Tibetan Plateau is the source of most of Asia's major rivers and has been called the Asian Water Tower. Detailed knowledge of its hydrogeology is paramount to enable the understanding of groundwater dynamics, which plays a vital role in headwater areas like the Tibetan Plateau. Nevertheless, due to its remoteness and the harsh environment, there is a lack of field survey data to investigate its hydrogeology. In this study, borehole core lithology analysis, soil thickness measurement, an altitude survey, hydrogeological surveys, and hydrogeophysical surveys (e.g. magnetic resonance sounding – MRS, electrical resistivity tomography – ERT, and transient electromagnetic – TEM) were conducted in the Maqu catchment within the Yellow River source region (YRSR). The hydrogeological surveys reveal that groundwater flows from the west to the east, recharging the Yellow River. The hydraulic conductivity ranges from 0.2 to 12.4 m d−1. The MRS sounding results, i.e. water content and hydraulic conductivity, confirmed the presence of an unconfined aquifer in the flat eastern area. Based on TEM results, the depth of the Yellow River deposits was derived at several places in the flat eastern area, ranging from 50 to 208 m. The soil thickness measurements were done in the western mountainous area of the catchment, where hydrogeophysical and hydrogeological surveys were difficult to be carried out. The results indicate that most soil thicknesses, except on the valley floor, are within 1.2 m in the western mountainous area of the catchment, and the soil thickness decreases as the slope increases. These survey data and results can contribute to integrated hydrological modelling and water cycle analysis to improve a full-picture understanding of the water cycle at the Maqu catchment in the YRSR. The raw dataset is freely available at https://doi.org/10.17026/dans-z6t-zpn7 (Li et al., 2020a), and the dataset containing the processed ERT, MRS, and TEM data is also available at the National Tibetan Plateau Data Center with the link https://doi.org/10.11888/Hydro.tpdc.271221 (Li et al., 2020b).
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000904466 7001_ $$0P:(DE-HGF)0$$aZeng, Yijian$$b1
000904466 7001_ $$00000-0003-4242-8286$$aLubczynski, Maciek W.$$b2
000904466 7001_ $$0P:(DE-HGF)0$$aRoy, Jean$$b3
000904466 7001_ $$00000-0001-9226-1774$$aYu, Lianyu$$b4
000904466 7001_ $$0P:(DE-HGF)0$$aQian, Hui$$b5
000904466 7001_ $$0P:(DE-HGF)0$$aLi, Zhenyu$$b6
000904466 7001_ $$0P:(DE-Juel1)190405$$aChen, Jie$$b7
000904466 7001_ $$0P:(DE-HGF)0$$aHan, Lei$$b8
000904466 7001_ $$0P:(DE-Juel1)165965$$aZheng, Han$$b9
000904466 7001_ $$0P:(DE-HGF)0$$aVeldkamp, Tom$$b10
000904466 7001_ $$0P:(DE-HGF)0$$aSchoorl, Jeroen M.$$b11
000904466 7001_ $$0P:(DE-HGF)0$$aHendricks Franssen, Harrie-Jan$$b12
000904466 7001_ $$0P:(DE-HGF)0$$aHou, Kai$$b13
000904466 7001_ $$0P:(DE-HGF)0$$aZhang, Qiying$$b14
000904466 7001_ $$0P:(DE-HGF)0$$aXu, Panpan$$b15
000904466 7001_ $$0P:(DE-Juel1)180245$$aLi, Fan$$b16
000904466 7001_ $$0P:(DE-HGF)0$$aLu, Kai$$b17
000904466 7001_ $$0P:(DE-HGF)0$$aLi, Yulin$$b18
000904466 7001_ $$0P:(DE-HGF)0$$aSu, Zhongbo$$b19$$eCorresponding author
000904466 773__ $$0PERI:(DE-600)2475469-9$$a10.5194/essd-13-4727-2021$$gVol. 13, no. 10, p. 4727 - 4757$$n10$$p4727 - 4757$$tEarth system science data$$v13$$x1866-3508$$y2021
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