Responses of Terrestrial Water Storage to Climate Change in the Closed Alpine Qaidam Basin

Hydrology, Journal Year: 2025, Volume and Issue: 12(5), P. 105 - 105

Published: April 28, 2025

Terrestrial water storage (TWS) in the Qaidam Basin western China is highly sensitive to climate change. The GRACE mascon products provide variations of TWS anomalies (TWSAs), greatly facilitating exploration dynamics. However, main meteorological factors affecting TWSA dynamics this region need be comprehensively investigated. In study, TWSAs over from 2002 2024 were analyzed using three with CSR, JPL, and GSFC. groundwater (GWAs) extracted through GLDAS products. impact elements on GWAs was identified. results showed that a significant increasing trend rate 0.51 ± 0.13 mm per month across entire basin 2003 2016. part accounted for largest proportion contributor increase basin. addition dominant role precipitation, other elements, particularly air humidity solar radiation, also identified as important contributors GWA variations. This study highlighted climatic effect variations, which have implications local resource management ecological conservation under ongoing

Language: Английский

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Projected future changes in the cryosphere and hydrology of a mountainous catchment in the upper Heihe River, China

Hydrology and earth system sciences, Journal Year: 2024, Volume and Issue: 28(16), P. 3897 - 3917

Published: Aug. 26, 2024

Abstract. Climate warming exacerbates the degradation of mountain cryosphere, including glacier retreat, permafrost degradation, and snow cover reduction. These changes dramatically alter local downstream hydrological regime, posing significant threats to basin-scale water resource management sustainable development. However, this issue is still not adequately addressed, particularly in mountainous catchments. We developed an integrated cryospheric–hydrologic model, FLEX-Cryo comprehensively consider glaciers, cover, frozen soil their dynamic impacts on processes. Taking Hulu catchment located upper Heihe River China as a case study, we utilized state-of-the-art climate change projection data under two scenarios (SSP2-4.5 SSP5-8.5) from sixth phase Coupled Model Intercomparison Project (CMIP6) simulate future cryosphere hydrology. Our findings showed that medium-emission scenario (SSP2-4.5) high-emission (SSP5-8.5), by end 21st century, will completely melt out around years 2051 2045, respectively. The annual maximum equivalent projected decrease 41.4 % 46.0 %, while duration be reduced approximately 45 70 d. freeze onset seasonally expected delayed 10 22 d, thaw likely advance 19 32 Moreover, depth 5.2 10.9 cm per decade, active layer increase 8.2 15.5 decade. Regarding hydrology, total runoff exhibits decreasing trend, tipping point occurs between 2019 2021. Permafrost reduce low early thawing season; discontinuous baseflow recession gradually transitions into linear recessions, increases. results highlight hydrology future. enhance our understanding cold-region processes have potential assist addressing challenges posed change.

Language: Английский

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Current Status and Future Research of Groundwater Under Climate Change: A Bibliometric Analysis

Water, Journal Year: 2024, Volume and Issue: 16(23), P. 3438 - 3438

Published: Nov. 29, 2024

Groundwater research on climate change is one of the significant topics in field natural sciences that receiving increasing attention. However, no bibliometric papers have been published analyzed for relevant knowledge graphs and relational networks. R-Bibliometrix VOSviewer software are used to quantitatively analyze visually represent literature groundwater under from 2010 2024 based Web Science Core Collection. The findings demonstrated a total 4748 articles this topic, with publications yearly. most influential journal was Journal Hydrology, ten were 2013 2017. United States China significantly more than any other country had closest cooperation, while Europe continent publications. Chinese Academy Sciences leading institution terms number publications, Delft University Technology highest average citations. British scholar Chris Soulsby author articles. top three keywords ‘climate change’, ‘groundwater’, ‘model’. Machine-learning methods remote-sensing techniques emerging hotspots guided future directions.

Language: Английский

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Coupling Coordination Relationships Between Ecosystems and Economic Development in Qinghai and Tibet

Land, Journal Year: 2024, Volume and Issue: 13(11), P. 1766 - 1766

Published: Oct. 28, 2024

The coordinated development of ecological protection and socioeconomics in the Tibetan Plateau is great significance. This study examines coupling coordination urban ecosystems economic across 15 municipal administrative units Qinghai Province Tibet Autonomous Region, core areas Plateau. findings reveal that a larger proportion are classified above medium vulnerability level, primarily due to inherent natural geographic conditions. Additionally, area two provinces regions below level larger, which mainly influenced by indicators strength industrial structure. degree between ecosystem system predominantly driven factors. Given existing environmental conditions, eastern still possess certain potential, while western somewhat constrained environment. Based on this, further policy recommendations have been proposed adjust upgrade structure, aligning with Qinghai–Tibet These aim facilitate formulation strategies policies for sustainable construction social such high-ecological-value as

Language: Английский

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