Results 101 to 110 of about 9,652 (267)

Characterizing the severity of hydrologic droughts

, 2006
Planning and management studies of water resources systems generally take into account the temporal and spatial variability of hydrological processes such as streamflows, particularly periods of extreme floods and droughts. This dissertation concerns with research on multiyear droughts that may occur in a given river system.
Tarawneh, Zeyad Salem, author, Salas, Jose D., advisor, Grigg, Neil, committee member, Ramírez, Jorge, committee member, Breidt, Jay, committee member, Woodhouse, Connie, committee member   +5 more
openaire   +1 more source

Multi‐Timescale Drought Evolution in Greece (1960–2022) From Station‐Based SPI and SPEI

International Journal of Climatology, EarlyView.
Using homogenized data from 67 HNMS stations in Greece (1960–2022), we calculated SPI and SPEI at 1–12‐month scales to characterize meteorological to hydrological drought. We quantified the network‐based spatial extent of drought, compared SPI and SPEI drought signals, and tested changes with autocorrelation‐robust Mann–Kendall trends and Pettitt ...
Michael Samouris, Anna Mamara, Vasileios Armaos, Athanassios Argiriou   +3 more
wiley   +1 more source

A formulation for assessing the risk of anthropogenic drought based on drought characteristics and socioeconomic and physical factors

Vadose Zone Journal
Determining the contribution of human activities to drought occurrence or aggravation of drought is an essential issue in drought risk management. Drought begins under the influence of meteorological processes and propagates to hydrological drought ...
Jamal Ahmadi Lavin, Sina Sadeghfam, Ahmad Sharafati, Aminreza Neshat   +3 more
doaj   +1 more source

Spatiotemporal Response of Hydrological Drought to Meteorological Drought on Multi-Time Scales Concerning Endorheic Basin. [PDF]

Int J Environ Res Public Health, 2021
Zhu N, Xu J, Zeng G, Cao X.
europepmc   +1 more source

Machine Learning‐Based Correction of Reanalysis Surface Radiation Fluxes Using Ground‐Measured Data in the Southern Brazilian Pampa Biome

International Journal of Climatology, EarlyView.
This study demonstrates that ERA5 provides more accurate surface radiation flux estimates than MERRA2 across the Southern Brazilian Pampa. Machine learning models, particularly Random Forest, further improved the precision of reanalysis data for climate applications.
Olusola Samuel Ojo, Michel Baptistella Stefanello, Alecsander Mergen, Maria Eduarda Oliveira Pinheiro, Vanessa de Arruda Souza, Débora Regina Roberti   +5 more
wiley   +1 more source

Revegetation-induced drought propagation shifts prolong hydrological drought recovery on the Loess Plateau, China

Agricultural Water Management
Given the inadequate focus on vegetation’s regulatory role in drought propagation, the neglect of differences among vegetation types in mediating drought cascades, and the lack of attention to hydrological drought recovery dynamics, this study targeted ...
Jiefeng Wu, Ya Peng, Wenxue Wang, Huaxia Yao, Guoqing Wang, Yuliang Zhou, Yi Cui, Jianzhu Li, Shifeng Xu, Xuemei Li   +9 more
doaj   +1 more source

Assessing plant water status: Part 2 – Non‐destructive and remote sensing approaches

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Precise, real time and non‐destructive assessment of plant water status is important for advancing plant physiological understanding, optimizing water usage, improving crop resilience and supporting precision agriculture in the face of increasingly variable climatic conditions.
Naila Farooq, Bo Zhang, Bastian Leander Franzisky, Tasawer Abbas, Jochen Taiber, Martin Koch, Ian C Dodd, Christoph‐Martin Geilfus   +7 more
wiley   +1 more source

Grassland forage legumes and drought mitigation – sheep wool application improved soil water availability and enhanced drought–stress responses

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Background Sheep wool may reduce drought stress in grasslands when used as a soil amendment. Two experiments were conducted to explore if: (i) water absorbed by wool would be biologically ‘active’ and therefore available to plants, using a novel method of measuring water activity (aw); and, (ii) adding wool to compost would delay water stress ...
Siân Bethan MacKintosh, Rhyn Fychan, John Walter Davies, Huw Gareth Powell, Mark Boileau Scott, Christina Louise Marley   +5 more
wiley   +1 more source

Lateral Carbon Transport Induced by Watershed Erosion: Driving Effects of Land Use, Rainfall, and Landscape Controls

Land Degradation &Development, EarlyView.
ABSTRACT Lateral carbon transport induced by soil erosion is a key component of the global carbon cycle. Over the past 50 years, ecological restoration projects in the Loess Plateau of China have increased vegetation coverage. However, the effects of land use, precipitation variability, and landscape factors on lateral carbon transport remain unclear ...
Ganggang Ke, Shengdong Cheng, Tian Wang, Zhanbin Li, Heng Wu, Xingyue Guo, Yunzhe Zhen   +6 more
wiley   +1 more source

Method for identifying non-stationary hydrological drought in regions with intense human activities

Journal of Hydrology: Regional Studies
Study region: the middle reaches of the Yellow River Basin (MYRB). Study focus: In regions with intense human activities, the stationarity of runoff sequences was disrupted due to the dual impacts of climate changing and human activities.
Minhua Ling, Jiawei Yao, Cuimei Lv, Erwei Zheng, Xingyu Chu   +4 more
doaj   +1 more source