Quantifying future water and energy security in the source area of the western route of China’s South-to-North water diversion project within the context of climatic and societal changes DOI Creative Commons
Hanxu Liang, Dan Zhang, Wensheng Wang

et al.

Journal of Hydrology Regional Studies, Journal Year: 2023, Volume and Issue: 47, P. 101443 - 101443

Published: June 1, 2023

Yalong River Basin (YLRB), China. The YLRB was selected to investigate the impacts of climatic and societal changes on water energy security in water-diverting area China's South-to-North diversion project (SNWD-W). future runoff hydropower generation were projected using Watergap hydrological model (WGHM) under different Representative Concentration Pathway (RCP) scenarios withdrawals predicted based shared socio-economic pathways (SSPs). results show that display significant increasing decreasing trends RCP8.5 RCP2.6, respectively. stress index (WSI) is increase by about 30%, but it still lower than 0.2 even combined with SNWD-W project. change − 0.87–4.75% 0.44–6.10% RCP2.6 without diversion, slight increment caused climate cannot offset substantial decrement especially maximum transfer amount scenario, which highlights tradeoffs between mitigation water-receiving loss area. Our provide a valuable reference for resources administration design scheme SNWD-W.

Language: Английский

Systematic analyses of the meteorological forcing and process parameterization uncertainties in modeling runoff with Noah-MP for the Upper Brahmaputra River Basin DOI
Xiangyong Lei, Peirong Lin, Hui Zheng

et al.

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 132686 - 132686

Published: Jan. 1, 2025

Language: Английский

Citations

1
Optimal locating satellite observation reaches for manning’s equation: From surface water and ocean topography mission river Database DOI
Qihang Liu, Yun Chen,

Qianqian Chen

et al.

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 132849 - 132849

Published: Feb. 1, 2025

Language: Английский

Citations

1
On the Spin‐Up Strategy for Spatial Modeling of Permafrost Dynamics: A Case Study on the Qinghai‐Tibet Plateau DOI Creative Commons
Hailong Ji, Zhuotong Nan, Jianan Hu

et al.

Journal of Advances in Modeling Earth Systems, Journal Year: 2022, Volume and Issue: 14(3)

Published: Feb. 23, 2022

Abstract Spin‐up is essential to provide initial conditions for land surface models (LSM) when they cannot be given reliably as in the application regional permafrost change studies. In this study, impacts of spin‐up strategy including total length and cycling scheme on modeling dynamics Qinghai‐Tibet Plateau (QTP) were evaluated through two groups experiments using a modified Noah LSM. The first group aims test different lengths second schemes. results show that presence prolongs convergence model. Vertically, slowest observed at table. insufficiency prone underestimate area overestimate degradation rate. Different schemes considerably affect resulting thermal fields result rates with difference 3.37 × 10 3 km 2 /a QTP, which exceeds (2.92 /a) reported existing multi‐year generally preferred, but overlong cycle should avoided prevent introduction climate trends period. We recommend 500‐year 5‐ 10‐year forcing QTP Our findings highlight importance strategy, usually neglected present LSM‐based

Language: Английский

Citations

37
Possible negative effects of earlier thaw onset and longer thaw duration on vegetation greenness over the Tibetan Plateau DOI
Taihua Wang, Dawen Yang, Guanheng Zheng

et al.

Agricultural and Forest Meteorology, Journal Year: 2022, Volume and Issue: 326, P. 109192 - 109192

Published: Sept. 30, 2022

Language: Английский

Citations

35
Pervasive Permafrost Thaw Exacerbates Future Risk of Water Shortage Across the Tibetan Plateau DOI Creative Commons
Taihua Wang, Dawen Yang, Yuting Yang

et al.

Earth s Future, Journal Year: 2023, Volume and Issue: 11(10)

Published: Oct. 1, 2023

Abstract Rivers originating from the Tibetan Plateau (TP) provide water to more than 1 billion people living downstream. Almost 40% of TP is currently underlain by permafrost, which serves as both an ice reserve and a flow barrier expected degrade drastically in warming climate. The hydrological impacts permafrost thaw across TP, however, remain poorly understood. Here, we quantify change on over 1980–2100 evaluate its using physically‐based cryospheric‐hydrological model at high spatial resolution. Using ensemble mean 38 models Coupled Model Intercomparison Project Phase 6 (CMIP6), near‐surface area total ground storage are projected decrease 86.4% 61.6% during 2020–2100 under high‐emission scenario, respectively. lowering table removal would enhance infiltration raise subsurface capacity. diminished supply melt enhanced capacity could jointly reduce annual runoff lead exacerbated regional shortage when facing future droughts. If most severe 10‐year drought historical period occurs again future, river will further 9.7% 11.3% compared with dry due vanishing cryosphere source Yellow Yangtze River. Our findings highlight importance get prepared for additional risks caused pervasive resources management TP.

Language: Английский

Citations

21
Impacts of frozen ground degradation and vegetation greening on upper Brahmaputra runoff during 1981–2019 DOI
Yuanwei Wang, Lei Wang, Jing Zhou

et al.

International Journal of Climatology, Journal Year: 2023, Volume and Issue: 43(8), P. 3768 - 3781

Published: March 2, 2023

Abstract The Tibetan Plateau (TP) contains the largest permafrost region in mid–low latitudes and area of glaciers outside polar regions. In recent decades, this has experienced vegetation greening (e.g., increasing leaf index) due to climate change. As exorheic river on TP, Upper Brahmaputra Basin (UBB) is very sensitive change, experiencing humidifying significant warming. study, we investigated spatiotemporal variability frozen ground over last four decades UBB explored how these changes have impacted runoff using a water‐ energy‐budget distributed hydrological model (WEB‐DHM). We found that almost 50% transformed into seasonally or unfrozen from 1981 2019 with great improvement index (LAI). Based variable‐controlling approach (set air temperature unchanged), revealed degradation caused an average 9.3 billion m 3 water loss per year, accounting for 5.4% total runoff, even if can increase resources at early stage. However, decline by 10.9 (6.4%) annually enhanced evapotranspiration. These findings highlight it critical understand mitigate impacts changing vegetation, when managing availability ecosystem conservation under rapid

Language: Английский

Citations

18
Hydrological Projections in the Third Pole Using Artificial Intelligence and an Observation‐Constrained Cryosphere‐Hydrology Model DOI Creative Commons
Junshui Long, Lei Wang, Deliang Chen

et al.

Earth s Future, Journal Year: 2024, Volume and Issue: 12(4)

Published: April 1, 2024

Abstract The water resources of the Third Pole (TP), highly sensitive to climate change and glacier melting, significantly impact food security millions in Asia. However, projecting future spatial‐temporal runoff changes for TP's mountainous basins remains a formidable challenge. Here, we've leveraged long short‐term memory model (LSTM) craft grid‐scale artificial intelligence (AI) named LSTM‐grid. This has enabled production hydrological projections seven major river TP. LSTM‐grid integrates monthly precipitation, air temperature, total mass (total_GMC) data at 0.25‐degree grid. Training employed gridded historical evapotranspiration sets generated by an observation‐constrained cryosphere‐hydrology headwaters TP during 2000–2017. Our results demonstrate LSTM grid's effectiveness usefulness, exhibiting Nash‐Sutcliffe Efficiency coefficient exceeding 0.92 verification periods (2013–2017). Moreover, monsoon region exhibited higher rate increase compared those westerlies region. Intra‐annual indicated notable increases spring runoff, especially where meltwater contributes runoff. Additionally, aptly captures before after turning points highlighting growing influence precipitation on reaching maximum total_GMC. Therefore, offers fresh perspective understanding spatiotemporal distribution high‐mountain glacial regions tapping into AI's potential drive scientific discovery provide reliable data.

Language: Английский

Citations

7
Incorporating relative humidity improves the accuracy of precipitation phase discrimination in High Mountain Asia DOI
Fan Sun, Yaning Chen, Yupeng Li

et al.

Atmospheric Research, Journal Year: 2022, Volume and Issue: 271, P. 106094 - 106094

Published: Feb. 22, 2022

Language: Английский

Citations

24
Long-term response of runoff and sediment load to spatiotemporally varied rainfall in the Lhasa River basin, Tibetan Plateau DOI
Dongmei Zhao, Donghong Xiong, Baojun Zhang

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 618, P. 129154 - 129154

Published: Jan. 23, 2023

Language: Английский

Citations

16
Heterogeneity in Spatiotemporal Variability of High Mountain Asia's Runoff and Its Underlying Mechanisms DOI
Yanxin Zhu, Yan‐Fang Sang, Bin Wang

et al.

Water Resources Research, Journal Year: 2023, Volume and Issue: 59(7)

Published: June 26, 2023

Abstract High Mountain Asia (HMA) is the headwater area for major Asian rivers, providing a vast amount of freshwater to billions people in Asia. These rivers also make their surrounding areas highly vulnerable destructive water‐related disasters. However, complex spatiotemporal variability runoff over HMA and its underlying mechanisms are poorly understood. This study investigates into spatial heterogeneity HMA's at three timescales (interannual, interdecadal, multidecadal) roles played by climate conditions catchment properties. We find significant interannual multidecadal west central HMA, interdecadal east HMA. At timescales, tends be more dryer basins. The largely controlled variations, especially precipitation. properties, including groundwater storage glacier‐snow meltwater, play important regulating effect In particular, high contributions meltwater can weaken response precipitation timescales. space‐time patterns driven atmospheric drivers El Niño‐Southern Oscillation, Interdecadal Pacific Atlantic Multidecadal Oscillation across results this provide better understanding physical mechanisms, which have critical implications sustainable management effective risk mitigation densely populated ecologically region.

Language: Английский

Citations

14