Guotao Zhang

Chinese Academy of Sciences

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Peng Cui

Institute of Mountain Hazards and Environment

Nazir Ahmed Bazai

Institute of Mountain Hazards and Environment

Dingzhu Liu

Chinese Academy of Sciences

Jinxi Song

Northwest University

Jiao Wang

Chinese Academy of Sciences

Hao Wang

China Institute of Water Resources and Hydropower Research

Wen Jin

China National Commission for Disaster Reduction

Paul A. Carling

University of Southampton

Yan Wang

Institute of Geographic Sciences and Natural Resources Research

Javed Hassan

Technical University of Denmark

Cooperative Institutions

Chinese Academy of Sciences

119

University of Chinese Academy of Sciences

Institute of Mountain Hazards and Environment

Northwest University

Institute of Geographic Sciences and Natural Resources Research

Lanzhou University

China University of Geosciences

Chinese Research Academy of Environmental Sciences

Tsinghua University

Sun Yat-sen University

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Glacier surging controls glacier lake formation and outburst floods: The example of the Khurdopin Glacier, Karakoram

Global and Planetary Change (2021)

Nazir Ahmed Bazai Peng Cui Dingzhu Liu Paul A. Carling Hao Wang

Glacial lake

Glacier terminus

Cirque glacier

Tidewater glacier cycle

Natural hazard

10.1016/j.gloplacha.2021.103710

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Citations (29)

Heterogeneity of hydraulic conductivity and Darcian flux in the submerged streambed and adjacent exposed stream bank of the Beiluo River, northwest China

Hydrogeology Journal (2016)

Jinxi Song Weiwei Jiang Shaofeng Xu Guotao Zhang Liping Wang

Permeameter

Downwelling

Thalweg

Biogeochemical Cycle

Hydraulic head

10.1007/s10040-016-1449-0

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Citations (24)

Depositional environment and organic matter accumulation of the Lower Cambrian Shuijingtuo Formation in the middle Yangtze area, China

Journal of Petroleum Science and Engineering (2021)

Lin Chen Baomin Zhang Xiaohong Chen Shu Jiang Guotao Zhang

Terrigenous sediment

10.1016/j.petrol.2021.109339

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Citations (8)

Source apportionment and elevational gradient of dissolved organic matter over the Tibetan plateau

CATENA (2022)

Hewen Niu Shichang Kang Chandan Sarangi Guotao Zhang Mengxue Chen

Apportionment

10.1016/j.catena.2022.106372

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Citations (5)

Study on the influence of the geomorphic on debris flow activity in the paraglacial zone of the Southeast Tibetan Plateau

Jiao Wang Guotao Zhang

On the southeastern Tibetan Plateau, which is an area widely covered by alpine glaciers, two types of debris flow generally occur: glacier-related debris flows (GDFs) and rainfall-related debris flows (RDFs). It is widely accepted that topographic conditions influence debris flow activities; however, few studies have examined the differences between such influence on GDFs and RDFs. This study investigated the GDFs and RDFs in the periglacial area of the Parlung Tsangpo Basin, and calculated 12 geomorphic indexes to reveal the topographic features associated with these two types of debris flow. It was found that lower values in the drainage area, main channel length, and relative elevation occurred in RDFs compared to the GDFs, whereas higher values in the channel gradient, relief ratio, and effective basin area appeared in RDFs. The discrepancy is mainly related to the different topographic and geomorphic shaping of modern glaciers. According to its geomorphological characteristics, the Parlung Tsangpo Basin can be divided into three sections: the upper V-shaped canyon section, middle wide valley section, and lower steep canyon section. The scale and frequency of debris flows in the upstream canyon region are substantially lower than those of debris flows in the downstream canyon region. Moreover, the frequency and scale of RDFs are substantially different to those of GDFs, primarily because of the different geomorphic evolutionary stages of debris flows gullies in different regions.

Debris flow

Denudation

10.5194/egusphere-egu23-10888

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Citations (0)

Variability of Darcian Flux in the Hyporheic Zone at a Natural Channel Bend

Water (2017)

Shaofeng Xu Jinxi Song Weiwei Jiang Guotao Zhang Ming Wen

Channel bends are one of the most important characteristic features of natural streams. These bends often create the conditions for a hyporheic zone, which has been recognized as a critical component of stream ecosystems. The streambed vertical hydraulic conductivity (Kv), vertical hydraulic gradient (VHG) and Darcian flux (DF) in the hyporheic zone were estimated at 61 locations along a channel bend of the Beiluo River during July 2015 and January 2016. All the streambed attributes showed great spatial variability along the channel bend. Both upward fluxes and downward fluxes occurred during the two test periods, most of studied stream sections were controlled by downwelling, indicating stream water discharge into the subsurface. The average downward flux was higher at the downstream side than at the upstream side of the channel bend, especially in July 2015. The distribution of streambed sediment grain size has a significant influence on the variability of Kv; high percentages of silt and clay sediments generally lead to low Kv values. Higher Kv at the depositional left bank at the upstream site shifted toward the erosional right bank at the downstream site, with Kv values positively correlated with the water depth. This study suggested that the variabilities of Kv and VHG were influenced by the stream geomorphology and that the distribution of Kv was inversely related, to a certain extent, to the distribution of VHG across the channel bend. Kv and VHG were found to have opposite effects on the DF, and the close relationship between Kv and DF indicated that the water fluxes were mainly controlled by Kv.

Downwelling

Silt

Hyporheic Zone

10.3390/w9030170

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Citations (5)

Impacts of Climate Change on Snow Avalanche Activity Along a Transportation Corridor in the Tianshan Mountains

International Journal of Disaster Risk Science (2023)

Jiansheng Hao Xueqin Zhang Peng Cui Lanhai Li Yan Wang

Abstract Snow avalanches can repeatedly occur along the same track under different snowpack and meteorological conditions during the snow season in areas of snow avalanche activity. The snowfall, air temperature, and snow cover can change dramatically in a warming climate, causing significant changes in the snow avalanche risk. But how the risk of snow avalanche activity during the snow season will change under a warming climate remains an open question. Based on the observed meteorological and snowpack data from 1968 to 2021 and the snow avalanche activity data during the 2011–2021 snow seasons along a transportation corridor in the central Tianshan Mountains that has a typical continental snow climate, we analyzed the temporal distribution of the snow avalanche activity and the impacts of climate change on it. The results indicate that the frequency of the snow avalanche activity is characterized by a Gaussian bimodal distribution, resulting from interactions between the snowfall, air temperature, and snowpack evolution. In addition, the active period of wet snow avalanches triggered by temperature surges and high solar radiation has gradually moved forward from the second half to the first half of March with climate warming. The frequency and size of snowfall-triggered snow avalanches showed only a slight and insignificant increase. These findings are important for rationally arranging snow avalanche relief resources to improve the risk management of snow avalanche disasters, and highlight the necessity to immediately design risk mitigation strategies and disaster risk policies to improve our adaptation to climate change.

Snowpack

Snow field

10.1007/s13753-023-00475-0

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Citations (13)

Light-absorbing impurities accelerating glacial melting in southeastern Tibetan Plateau

Environmental Pollution (2019)

Hewen Niu Shichang Kang Hailong Wang Jiankuo Du Tao Pu

Snowpack

Albedo (alchemy)

Glacier mass balance

10.1016/j.envpol.2019.113541

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Citations (36)

Evaluating the post-earthquake landslides sediment supply capacity for debris flows

CATENA (2022)

Wen Jin Peng Cui Guotao Zhang Jiao Wang Yunxia Zhang

Debris flow

10.1016/j.catena.2022.106649

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Citations (24)

Surface Water‐Groundwater Interaction in the Guanzhong Section of the Weihe River Basin, China

Ground Water (2018)

Feihe Kong Jinxi Song Yan Zhang Guobin Fu Dandong Cheng

Abstract As a crucial agricultural and economic development zone since the Qin Dynasty (221 to 206 BC), the Guanzhong section of the Weihe River basin is facing serious water resource shortages due to population growth and regional development. Its water resource amount per capita is only 361 m 3 , about 1/6 of the average in China and less than 1/20 of the average in the world. Surface water and groundwater (SW‐GW) interaction, having a significant influence on the spatiotemporal distribution of water resources, was qualitatively and quantitatively investigated during a wet year based on stable isotopes and hydrochemistry. The results show that the recharge pattern in the north part varies with season, that is, 40% of the surface water recharge comes from groundwater in the dry season, but 93% of the groundwater recharge comes from surface water in the rainy season. In the south part, groundwater is always recharged by surface water, with contributions of 47% and 61% in the rainy and dry seasons, respectively. For the main stream, the recharge pattern is complicated and varies with season and site. This study will provide useful information about SW‐GW interaction at basin scale. Integrated management of groundwater and surface water could improve the efficiency of regional water resources utilization and promote accurate and sustainable water management in the semi‐arid basin.

Wet season

Dry season

10.1111/gwat.12854

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Citations (34)