Intensification in the Wettest Days to 50 Percent of Annual Precipitation (WD50) Across Europe DOI Creative Commons
Benjamin D. Goffin, Prakrut Kansara, V. Lakshmi

et al.

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(3)

Published: Jan. 31, 2024

Abstract Due to global warming, precipitation extremes are becoming more frequent and severe, further exacerbating the uneven distribution of daily precipitation. In this study, we explored how many days in a year it takes get certain amount that falls annually. We analyzed from gridded observations across European continent found generally took 22 34 wettest contribute 50% yearly totals (WD50). various degrees alignment between ground measurements. Building on this, examined changes WD50 detected widespread shifts toward fewer periods 1950–1985 1986–2021. addition, about one quarter land also exhibited significant, decreasing trends over last 7 decades. Overall, work showed an intensification annual regimes.

Language: Английский

Water remains a blind spot in climate change policies DOI Creative Commons
Hervé Douville, Richard P. Allan, Paola A. Arias

et al.

PLOS Water, Journal Year: 2022, Volume and Issue: 1(12), P. e0000058 - e0000058

Published: Dec. 15, 2022

For the first time in latest Assessment Report of Intergovernmental Panel on Climate Change (IPCC), water has been focus dedicated chapters both Working Group 1 (Chapter 8) and 2 4). Nevertheless, we argue here that not yet received full attention it deserves from scientists policymakers for several reasons. Firstly, historical temperature change further increased with use global warming levels motivated by an aim to be consistent current policy framings. Secondly, increasing paid extreme weather sometimes overshadowed longer time-scale changes such as aridification fraction arable land variability cycle month month, season season, year also yield cascading impacts all sectors. Thirdly, a stronger is needed understanding effectiveness future adaptation strategies reducing water-related climate risks. Finally, role adequately recognized assessment mitigation although compliance Paris Agreement pledges require massive deployment land-based whose feasibility efficiency heavily depend resources. It thus essential develop more integrated approach change, would allow “close loop” between options, changes, hydrological adaptation.

Language: Английский

Citations

33
An even drier future for the arid lands DOI Creative Commons
Richard P. Allan, Hervé Douville

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 121(2)

Published: Dec. 29, 2023

Understanding and controlling the interaction of graphene-based materials with cell membranes is key to development graphene-enabled biomedical technologies management graphene health safety issues. Very little known about ...

Language: Английский

Citations

21
Timing and magnitude of drought impacts on carbon uptake across a grassland biome DOI Creative Commons
Andrew J. Felton, Gregory R. Goldsmith

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(10), P. 2790 - 2803

Published: Feb. 16, 2023

Although drought is known to negatively impact grassland functioning, the timing and magnitude of these impacts within a growing season remain unresolved. Previous small-scale assessments indicate grasslands may only respond during narrow periods year; however, large-scale are now needed uncover general patterns determinants this timing. We combined remote sensing datasets gross primary productivity weather assess responses at 5 km2 temporal resolution across two expansive ecoregions western US Great Plains biome: C4 -dominated shortgrass steppe C3 northern mixed prairies. Across over 700,000 pixel-year combinations covering more than 600,000 , we studied how driest years between 2003-2020 altered daily bi-weekly dynamics carbon (C) uptake. Reductions C uptake intensified into early summer peaked in mid- late June both ecoregions. Stimulation spring was small insufficient compensate for losses summer. Thus, total consistently reduced by ecoregions; reductions were twice as large southern warmer steppe. biome, increased vapor pressure deficit (VPD) strongly linked peak vegetation greenness drought. Rising VPD will likely exacerbate Plains, with greatest warmest months locations. High spatiotemporal analyses response areas provide generalizable insights new opportunities basic applied ecosystem science water-limited amid climate change.

Language: Английский

Citations

20
Amplified seasonal range in precipitation minus evaporation DOI Creative Commons
Richard P. Allan

Environmental Research Letters, Journal Year: 2023, Volume and Issue: 18(9), P. 094004 - 094004

Published: July 25, 2023

Abstract Climate warming is intensifying the global water cycle, including rate of fresh flux between atmosphere and surface, determined by precipitation minus evaporation (P−E). Surpluses or deficits impact societies ecosystems, so it important to monitor understand how why P−E patterns their seasonal range are changing across globe. Here, annual maximum minimum changes diagnosed globally over land ocean using observation-based datasets CMIP6 climate model experiments covering 1950–2100. Seasonal negative much globe, apart from Arctic, mid-latitude oceans tropical warm pool. In mean, increases decreases around 3%–4% per ∘ C 1995–2014 2080–2100 in ensemble mean an intermediate greenhouse gas emission scenario. Over land, there less coherence 1960–2020 datasets, but increase emerges future projections. Patterns qualitatively similar present day trends with equatorial belt high-latitude regions subtropical subsidence zones. This adds confidence projections a more variable extreme cycle also highlights uncertainties this response land.

Language: Английский

Citations

20
Precipitation Scaling in Extreme Rainfall Events and the Implications for Future Indian Monsoon: Analysis of High‐Resolution Global Climate Model Simulations DOI Creative Commons
Stella Jes Varghese, Sajani Surendran, Kavirajan Rajendran

et al.

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(1)

Published: Jan. 1, 2024

Abstract The increase in water holding capacity of the atmosphere with temperature, given by Clausius‐Clapeyron (CC) relationship, describes changes extreme rainfall intensities at warmer atmospheric states. We study characteristics events (EREs) during Indian summer monsoon season respect to thermodynamic and precipitation‐scaling over subcontinent its homogeneous zones. utilize outputs from a present‐day climate simulation time‐slice future change projection experiments high‐resolution global model. Large are seen for very EREs (vEREs) which suggests their sensitivity temperatures. In future, altered radiative forcing will heat up upper atmosphere, stabilize it offset effect increasing humidity on precipitation intensity. Our analysis also that more convective clouds interplay increased moisture content circulation result EREs.

Language: Английский

Citations

7
eDNA reveals spatial homogenization of fish diversity in a mountain river affected by a reservoir cascade DOI

Ruli Cheng,

Xinxin Zhou,

Yufeng Zhang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 361, P. 121248 - 121248

Published: May 30, 2024

Language: Английский

Citations

7
Dryland Watersheds in Flux: How Nitrogen Deposition and Changing Precipitation Regimes Shape Nitrogen Export DOI Creative Commons
Jianning Ren, Erin J. Hanan, Paolo D’Odorico

et al.

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

Published: April 1, 2024

Abstract Atmospheric nitrogen (N) deposition and climate change are transforming the way N moves through dryland watersheds. For example, is increasing export to streams, which may be exacerbated by changes in magnitude, timing, intensity of precipitation (i.e., regime). While can control amount entering a watershed, regime influences rates internal cycling; when where soil N, plant roots, microbes hydrologically coupled via diffusion; how quickly plants assimilate N; denitrification, runoff, leaching. We used ecohydrological model RHESSys investigate (a) dynamics differ between N‐limited N‐saturated conditions (b) total its intra‐annual intermittency time storms year), interannual duration dry months across multiple years), variability variance among years) modify export. Streamflow nitrate (NO 3 − ) was more sensitive rainfall (both interannual) than scenarios, particularly lower—the opposite true for denitrification scenarios. increased or decreased with other amount. This suggests that under future change, prolonged droughts followed intense pose major threat water quality

Language: Английский

Citations

4
Agricultural tile drains increase the susceptibility of streams to longer and more intense streamflow droughts DOI Creative Commons
Seth Adelsperger, Darren L. Ficklin, Scott M. Robeson

et al.

Environmental Research Letters, Journal Year: 2024, Volume and Issue: 19(10), P. 104071 - 104071

Published: Sept. 6, 2024

Abstract Streamflow droughts are receiving increased attention worldwide due to their impact on the environment and economy. One region of concern is Midwestern United States, whose agricultural productivity depends subsurface pipes known as tile drains improve trafficability soil conditions for crop growth. Tile accomplish this by rapidly transporting surplus moisture shallow groundwater from fields, resulting in reduced watershed storage. However, no work has previously examined connection between drainage streamflow drought. Here, we pose question: does extent watershed-level lead an susceptibly magnitude droughts? To answer this, use daily data 122 watersheds throughout States quantify drought duration, frequency, intensity. Using spatial multiple regression models, find that generates statistically significant ( p < 0.05) increases duration intensity while significantly reducing frequency. The effect characteristics similar water table depth precipitation seasonality, both which influence droughts. Furthermore, projected changes regional will likely drive installation additional drainage. We each 10% increase tile-drained area, 0.03 d 12%, respectively, frequency decreases 0.10 events/year. Such may more severe have a detrimental socio-environmental usage streams Midwest.

Language: Английский

Citations

4
Vegetation greening mitigates the positive impacts of climate change on water availability in Northwest China DOI

Zixu Jia,

Tao Lin,

Xiangzhong Guo

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: unknown, P. 132086 - 132086

Published: Sept. 1, 2024

Language: Английский

Citations

4
Expanding towards contraction: the alternation of floods and droughts as a fundamental component in river ecology DOI Creative Commons
Susana Bernal, José L. J. Ledesma, Xavier Peñarroya

et al.

Biogeochemistry, Journal Year: 2025, Volume and Issue: 168(1)

Published: Jan. 3, 2025

Abstract Climate warming is causing more extreme weather conditions, with both larger and intense precipitation events as well extended periods of drought in many regions the world. The consequence an alteration hydrological regime streams rivers, increase probability conditions. Mediterranean-climate usually experience on a seasonal basis thus, freshwater Mediterranean ecosystems can be used natural laboratories for better understanding how climate will impact ecosystem structure functioning elsewhere. In this paper, we revisited contextualized historical new datasets collected at Fuirosos, well-studied intermittent stream naturally experiencing events, to illustrate alternation floods droughts influence hydrology, microbial assemblages, water chemistry, potential biogeochemical processing. Moreover, revised some most influential conceptual quantitative frameworks river ecology assess what extent they incorporate occurrence events. Based exercise, identified knowledge gaps challenges guide future research under intensification cycle. Ultimately, aimed share lessons learned from which help understand warming-induced impacts transport cycling matter fluvial ecosystems.

Language: Английский

Citations

0