Historical and projected future runoff over the Mekong River basin DOI Creative Commons
Chao Wang, Stephen J. Leisz, Li Li

et al.

Earth System Dynamics, Journal Year: 2024, Volume and Issue: 15(1), P. 75 - 90

Published: Jan. 29, 2024

Abstract. The Mekong River (MR) crosses the borders and connects six countries, including China, Myanmar, Laos, Thailand, Cambodia, Vietnam. It provides critical water resources supports natural agricultural ecosystems, socioeconomic development, livelihoods of people living in this region. Understanding changes runoff important international river under projected climate change is for resource management adaptation planning. However, research on long-term dynamics MR underlying drivers variability remains scarce. Here, we analyse historical variations from 1971 to 2020 based gauge data collected eight hydrological stations along MR. With these data, then evaluate simulation performance five global models (GHMs) forced by four (GCMs) Inter-Sectoral Impact Model Intercomparison Project (ISIMIP). Furthermore, best combination, quantify impact future result shows that annual has not changed significantly past 5 decades, while establishment dams reservoirs basin visibly affected distribution. ensemble-averaged Water Global Assessment Prognosis version 2 (WaterGAP2; i.e. GHM) GCMs performance. Under Representative Concentration Pathways (RCPs; RCP2.6, RCP6.0 RCP8.5), increase (p<0.05); e.g. 3.81 ± 3.47 m3s-1a-1 (9 8 % 100 years) at upper reach RCP2.6 16.36 12.44 (13 10 lower RCP6.0. In particular, scenario, most pronounced middle reaches, due increased precipitation snowmelt. RCP8.5 distribution different seasons varies obviously, increasing risk flooding wet season drought dry season.

Language: Английский

High-resolution (1 km) Köppen-Geiger maps for 1901–2099 based on constrained CMIP6 projections DOI Creative Commons
Hylke E. Beck, Tim R. McVicar, Noemi Vergopolan

et al.

Scientific Data, Journal Year: 2023, Volume and Issue: 10(1)

Published: Oct. 23, 2023

We introduce Version 2 of our widely used 1-km Köppen-Geiger climate classification maps for historical and future conditions. The (encompassing 1901-1930, 1931-1960, 1961-1990, 1991-2020) are based on high-resolution, observation-based climatologies, while the 2041-2070 2071-2099) downscaled bias-corrected projections seven shared socio-economic pathways (SSPs). evaluated 67 models from Coupled Model Intercomparison Project phase 6 (CMIP6) kept a subset 42 with most plausible CO2-induced warming rates. estimate that 1901-1930 to 1991-2020, approximately 5% global land surface (excluding Antarctica) transitioned different major class. Furthermore, we project 1991-2020 2071-2099, will transition class under low-emissions SSP1-2.6 scenario, 8% middle-of-the-road SSP2-4.5 13% high-emissions SSP5-8.5 scenario. maps, along associated confidence estimates, underlying monthly air temperature precipitation data, sensitivity metrics CMIP6 models, can be accessed at www.gloh2o.org/koppen .

Language: Английский

Citations

207
Evaluation of potential changes in landslide susceptibility and landslide occurrence frequency in China under climate change DOI
Qigen Lin, Stefan Steger, Massimiliano Pittore

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 850, P. 158049 - 158049

Published: Aug. 18, 2022

Language: Английский

Citations

92
Oceanic climate changes threaten the sustainability of Asia’s water tower DOI Creative Commons
Qiang Zhang, Zexi Shen, Yadu Pokhrel

et al.

Nature, Journal Year: 2023, Volume and Issue: 615(7950), P. 87 - 93

Published: March 1, 2023

Water resources sustainability in High Mountain Asia (HMA) surrounding the Tibetan Plateau (TP)-known as Asia's water tower-has triggered widespread concerns because HMA protects millions of people against stress1,2. However, mechanisms behind heterogeneous trends observed terrestrial storage (TWS) over TP remain poorly understood. Here we use a Lagrangian particle dispersion model and satellite observations to attribute about 1 Gt monthly TWS decline southern during 2003-2016 westerlies-carried deficit precipitation minus evaporation (PME) from southeast North Atlantic. We further show that blocks propagation PME into central TP, causing increase by 0.5 Gt. Furthermore, warming-induced snow glacial melt well drying-induced depletion weaken blocking HMA's mountains, persistent northward expansion TP's since 2009. Future projections under two emissions scenarios verified 2020-2021 indicate that, end twenty-first century, up 84% (for scenario SSP245) 97% SSP585) could be afflicted deficits. Our findings trajectory towards unsustainable systems exacerbate downstream stress.

Language: Английский

Citations

90
Southern Hemisphere dominates recent decline in global water availability DOI
Yongqiang Zhang, Congcong Li, Francis H. S. Chiew

et al.

Science, Journal Year: 2023, Volume and Issue: 382(6670), P. 579 - 584

Published: Nov. 2, 2023

Global land water underpins livelihoods, socioeconomic development, and ecosystems. It remains unclear how availability has changed in recent decades. Using an ensemble of observations, we quantified global over the past two We show that Southern Hemisphere dominated declining trend from 2001 to 2020. The significant decrease occurs mainly South America, southwestern Africa, northwestern Australia. In Northern Hemisphere, complex regional increasing decreasing trends cancel each other, resulting a negligible hemispheric trend. variability are largely driven by precipitation associated with climate modes, particularly El Niño-Southern Oscillation. This study highlights their dominant role controlling availability.

Language: Английский

Citations

80
Rarest rainfall events will see the greatest relative increase in magnitude under future climate change DOI Creative Commons
Gaby J. Gründemann, Nick van de Giesen, Lukas Brunner

et al.

Communications Earth & Environment, Journal Year: 2022, Volume and Issue: 3(1)

Published: Oct. 10, 2022

Abstract Future rainfall extremes are projected to increase with global warming according theory and climate models, but common (annual) rare (decennial or centennial) could be affected differently. Here, using 25 models from the Coupled Model Intercomparison Project Phase 6 driven by a range of plausible scenarios future greenhouse gas emissions, we show that rarer event, more likely it is in climate. By end this century, daily land magnitude between 10.5% 28.2% for annual events, 13.5% 38.3% centennial low high emission respectively. The results consistent across though regional variation, underlying mechanisms remain determined.

Language: Английский

Citations

74
Anthropogenic fingerprints in daily precipitation revealed by deep learning DOI Creative Commons
Yoo‐Geun Ham, Jeong-Hwan Kim, Seung‐Ki Min

et al.

Nature, Journal Year: 2023, Volume and Issue: 622(7982), P. 301 - 307

Published: Aug. 30, 2023

According to twenty-first century climate-model projections, greenhouse warming will intensify rainfall variability and extremes across the globe

Language: Английский

Citations

57
Remotely sensing potential climate change tipping points across scales DOI Creative Commons
Timothy M. Lenton, Jesse F. Abrams, Annett Bartsch

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 6, 2024

Potential climate tipping points pose a growing risk for societies, and policy is calling improved anticipation of them. Satellite remote sensing can play unique role in identifying anticipating phenomena across scales. Where satellite records are too short temporal early warning points, complementary spatial indicators leverage the exceptional spatial-temporal coverage remotely sensed data to detect changing resilience vulnerable systems. Combining Earth observation with system models improve process-based understanding their interactions, potential cascades. Such fine-resolution support point management

Language: Английский

Citations

33
Majority of global river flow sustained by groundwater DOI
Jiaxin Xie, Xiaomang Liu, Scott Jasechko

et al.

Nature Geoscience, Journal Year: 2024, Volume and Issue: 17(8), P. 770 - 777

Published: July 19, 2024

Language: Английский

Citations

28
Projected runoff declines from plant physiological effects on precipitation DOI Creative Commons
Corey Lesk, Jonathan M. Winter, Justin S. Mankin

et al.

Nature Water, Journal Year: 2025, Volume and Issue: 3(2), P. 167 - 177

Published: Jan. 20, 2025

Language: Английский

Citations

3
Self‐Powered Intelligent Buoy Based on Triboelectric Nanogenerator for Water Level Alarming DOI
Xi Liang, Shijie Liu, Zewei Ren

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(35)

Published: June 22, 2022

Abstract With increasing global warming, catastrophic floods have threatened people's lives seriously and caused huge economic losses. However, present water hazard alarming systems generally rely on commercial batteries, limiting the intelligent development of disaster prevention planning maintenance costs. In order to break limitation, this work applies triboelectric nanogenerators (TENGs) alarming. A spherical TENG device with four spiral units is designed harvest wave energy, charge excitation modules (CEMs) are created integrated improve its electric output. The output current power CEMs can reach 15.09 mA 24.48 mW, which increased by 250.5 4.0 times, compared without CEMs. Based TENG, a self‐powered buoy constructed. Utilizing transmit 433 MHz radio frequency signals 25 meters away, level alarm system information exchange mobile phone successfully realized. This extends applications TENGs toward energy harvesting provides new strategy for alarming, conducive fields carbon neutralization, Internet Things, prevention.

Language: Английский

Citations

44