Sensitivity of Standardized Precipitation and Evapotranspiration Index (SPEI) to the choice of SPEI probability distribution and evapotranspiration method DOI Creative Commons
Sanghyun Lee, Daniel N. Moriasi, Ali Danandeh Mehr

et al.

Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 53, P. 101761 - 101761

Published: March 29, 2024

The state of Oklahoma located in the Southern Plains region United States. standardized precipitation evapotranspiration index (SPEI) is a widely used meteorological drought that incorporates potential (PET) into precipitation-based index. However, understanding appropriate PET method for SPEI across different temporal scales non-arid climate conditions remains limited. We compared Thornthwaite (TW), Hargreaves (HG), and Penman-Monteith (PM) equations at various accumulations, considering three scales: 1) long-term (25 years), 2) event-based, 3) monthly. Also, we examined log-logistic generalized extreme value distributions to test normality computed from methods. To do this, utilized high-quality datasets measured 107 stations Oklahoma, States, which has diverse ranging semi-arid humid subtropical. distribution was found be suitable SPEI. SPEI-HG showed better agreement with SPEI-PM than SPEI-TW this analyses scales. accumulations longer one year, both TW HG no significant differences SPEI-PM. findings provide practical guidance selecting an equation depending on purpose study without resorting data-intensive methods estimation.

Language: Английский

A planetary boundary for green water DOI
Lan Wang‐Erlandsson, Arne Tobian, Ruud van der Ent

et al.

Nature Reviews Earth & Environment, Journal Year: 2022, Volume and Issue: 3(6), P. 380 - 392

Published: April 26, 2022

Language: Английский

Citations

264
Mapping global lake dynamics reveals the emerging roles of small lakes DOI Creative Commons
Xuehui Pi, Qiuqi Luo, Lian Feng

et al.

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Oct. 1, 2022

Abstract Lakes are important natural resources and carbon gas emitters undergoing rapid changes worldwide in response to climate change human activities. A detailed global characterization of lakes their long-term dynamics does not exist, which is however crucial for evaluating the associated impacts on water availability emissions. Here, we map 3.4 million a scale, including explicit maximum extents probability-weighted area over past four decades. From beginning period (1984–1999) end (2010–2019), lake increased across all six continents analyzed, with net +46,278 km 2 , 56% expansion was attributed reservoirs. Interestingly, although small (<1 ) accounted just 15% area, they dominated variability total size half inland regions. The identified increase time led higher lacustrine emissions, mostly lakes. Our findings illustrate emerging roles regulating only local variability, but also trends surface extent

Language: Английский

Citations

181
Evapotranspiration frequently increases during droughts DOI
Meng Zhao,

A Geruo,

Yanlan Liu

et al.

Nature Climate Change, Journal Year: 2022, Volume and Issue: 12(11), P. 1024 - 1030

Published: Oct. 27, 2022

Language: Английский

Citations

130
A deep learning-based hybrid model of global terrestrial evaporation DOI Creative Commons
Akash Koppa, Dominik Rains, Petra Hulsman

et al.

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: April 8, 2022

Terrestrial evaporation (E) is a key climatic variable that controlled by plethora of environmental factors. The constraints modulate the from plant leaves (or transpiration, E

Language: Английский

Citations

101
Growing impact of wildfire on western US water supply DOI Creative Commons
Park Williams, Ben Livneh, Karen A. McKinnon

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2022, Volume and Issue: 119(10)

Published: Feb. 22, 2022

Streamflow often increases after fire, but the persistence of this effect and its importance to present future regional water resources are unclear. This paper addresses these knowledge gaps for western United States (WUS), where annual forest fire area increased by more than 1,100% during 1984 2020. Among 72 forested basins across WUS that burned between 2019, multibasin mean streamflow was significantly elevated 0.19 SDs (P < 0.01) an average 6 years postfire, compared range results expected from climate alone. Significance is assessed comparing prefire postfire responses also among 107 control experienced little no wildfire study period. The response scales with extent: 29 >20% in a year, over first 0.38 SDs, or 30%. Postfire were significant all four seasons. Historical fire-climate relationships combined model projections suggest 2021 2050 will see repeated when fire-conducive 2020, year currently holding modern record burned. These findings center on relatively small, minimally managed basins, our areas grow enough next 3 decades enhance at scales. Wildfire emerging driver runoff change increasingly alter impacts supplies runoff-related risks.

Language: Английский

Citations

99
Exploring drought‐to‐flood interactions and dynamics: A global case review DOI Creative Commons
Marlies H. Barendrecht, Alessia Matanó, Heidi Mendoza

et al.

Wiley Interdisciplinary Reviews Water, Journal Year: 2024, Volume and Issue: 11(4)

Published: Feb. 29, 2024

Abstract This study synthesizes the current understanding of hydrological, impact, and adaptation processes underlying drought‐to‐flood events (i.e., consecutive drought flood events), how they interact. Based on an analysis literature a global assessment historic cases, we show can affect risk assess under which circumstances interactions lead to increased or decreased risk. We make distinction between socio‐economic processes. Hydrological include storage runoff processes, both seem mostly play role when is multiyear event occurs during drought. However, process dominant where, this influenced by human intervention needs further research. Processes related impacts have been studied less than hydrological but in general, changes vulnerability important increasing decreasing impacts. Additionally, there evidence water quality problems due events, compared themselves. Adaptation affects (e.g., through groundwater extraction) influencing vulnerability) There are many examples adaptation, limited where certain occur why. Overall, research scarce. To increase our need more comprehensive studies socio‐economic, their interactions, as well that dominance article categorized under: Science Water > Extremes

Language: Английский

Citations

21
Global increase in the occurrence and impact of multiyear droughts DOI
Liangzhi Chen, Philipp Brun,

Pascal Buri

et al.

Science, Journal Year: 2025, Volume and Issue: 387(6731), P. 278 - 284

Published: Jan. 16, 2025

Persistent multiyear drought (MYD) events pose a growing threat to nature and humans in changing climate. We identified inventoried global MYDs by detecting spatiotemporally contiguous climatic anomalies, showing that have become drier, hotter, led increasingly diminished vegetation greenness. The terrestrial land affected has increased at rate of 49,279 ± 14,771 square kilometers per year from 1980 2018. Temperate grasslands exhibited the greatest declines greenness during MYDs, whereas boreal tropical forests had comparably minor responses. With becoming more common, this quantitative inventory occurrence, severity, trend, impact provides an important benchmark for facilitating effective collaborative preparedness toward mitigation adaptation such extreme events.

Language: Английский

Citations

5
Australian water quality trends over two decades show deterioration in the Great Barrier Reef region and recovery in the Murray-Darling Basin DOI Creative Commons
Danlu Guo, Qian Zhang, Camille Minaudo

et al.

Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)

Published: Jan. 29, 2025

Language: Английский

Citations

2
Trigger thresholds and propagation mechanism of meteorological drought to agricultural drought in an inland river basin DOI Creative Commons
Lin Wang, Wei Wei, Lixin Wang

et al.

Agricultural Water Management, Journal Year: 2025, Volume and Issue: 311, P. 109378 - 109378

Published: Feb. 22, 2025

Language: Английский

Citations

2
CAMELS-AUS: hydrometeorological time series and landscape attributes for 222 catchments in Australia DOI Creative Commons
Keirnan Fowler, Suwash Chandra Acharya, Nans Addor

et al.

Earth system science data, Journal Year: 2021, Volume and Issue: 13(8), P. 3847 - 3867

Published: Aug. 6, 2021

Abstract. This paper presents the Australian edition of Catchment Attributes and Meteorology for Large-sample Studies (CAMELS) series datasets. CAMELS-AUS (Australia) comprises data 222 unregulated catchments, combining hydrometeorological time (streamflow 18 climatic variables) with 134 attributes related to geology, soil, topography, land cover, anthropogenic influence hydroclimatology. The catchments have been monitored decades (more than 85 % streamflow records longer 40 years) are relatively free large-scale changes, such as significant changes in use. Rating curve uncertainty estimates provided most (75 %) multiple atmospheric datasets included, offering insights into forcing uncertainty. dataset allows users globally freely access catchment drawn from Australia's unique hydroclimatology, particularly notable its large interannual variability. Combined arid CAMELS USA Chile, constitutes an unprecedented resource study arid-zone hydrology. is downloadable https://doi.org/10.1594/PANGAEA.921850 (Fowler et al., 2020a).

Language: Английский

Citations

95