Results 51 to 60 of about 2,008 (184)

Evaluating the spatiotemporal dynamics of agrometeorological droughts in semi-arid Gwayi agroecosystems (1990–2020) using multiple indices

Geomatics, Natural Hazards & Risk
Climate variability poses a significant threat to smallholder farmers in the Gwayi catchment, Zimbabwe. This study investigated the spatiotemporal dynamics of agrometeorological droughts from 1990 to 2020 using the Standardized Precipitation Index (SPI),
Bright Chisadza, Onalenna Gwate, Simon Peter Musinguzi   +2 more
doaj   +1 more source

ANALYSING TIME SERIES OF STANDARDIZED PRECIPITATION INDEX (SPI) [PDF]

Успехи современного естествознания (Advances in Current Natural Sciences), 2021
A.S. Salmin, I.F. Asaulyak, A.I. Belolyubtsev   +2 more
openaire   +1 more source

Maize Yield, Water Productivity and Economic Analysis Under Different Irrigation and Nitrogen Management Strategies Using Field Data and CERES‐Maize Model

Irrigation and Drainage, EarlyView.
ABSTRACT There is limited integrated evaluation of nitrogen (N) and irrigation management strategies for improving maize yield and productivity using crop models. The effects of N and irrigation on maize yield and productivity under centre pivot (CPI) and subsurface drip irrigation (SDI) using the CERES‐Maize model were investigated. N treatments were (
Ebrahim Amiri, Suat Irmak, P. Aalaee Bazkiaee   +2 more
wiley   +1 more source

Enhancing drought prediction precision with EEMD-ARIMA modeling based on standardized precipitation index

Water Science and Technology
This study introduces ensemble empirical mode decomposition (EEMD) coupled with the autoregressive integrated moving average (ARIMA) model for drought prediction. In the realm of drought forecasting, we assess the EEMD-ARIMA model against the traditional
Reza Rezaiy, Ani Shabri
doaj   +1 more source

Spatial and temporal drought analysis in the north central region of Nigeria

Journal of Applied Sciences and Environmental Management, 2019
This study examined the occurrence of drought in north central Nigeria. Problems related to drought includes: unpredictable commencement and end time of rainfall season, seasonal rainfall fluctuations, long period of no rainfall.
T.C. Okeke, O.G. Okeola
doaj   +1 more source

Climatic Drivers of the Area Burned by Winter Wildfires in Northern Italy

International Journal of Climatology, EarlyView.
This study investigates winter wildfires occurring between November and April in northern Italy over the period 2008–2022. By integrating high‐resolution burned‐area data with gridded climatic indices derived from 150 weather stations, it identifies spatial and temporal wildfire patterns, highlights the most fire‐prone mountain areas through pixel ...
Alice Baronetti, Paolo Fiorucci, Antonello Provenzale   +2 more
wiley   +1 more source

Drought cycle tracking in Hungary using Standardized Precipitation Index (SPI)

Acta Agraria Debreceniensis, 2019
 Drought is one of the natural hazard risks which badly affects both agricultural and socio-economic sectors. Hungary, which is located in Eastern Europe has been suffering from different drought cycles; therefore, the aim of this study is to analyse the rainfall data obtained from ten metrological stations (Békéscsaba, Budapest, Debrecen, Győr ...
Safwan A. Mohammed, Endre Harsányi
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

FORECASTING DROUGHT WITH ARIMA MODEL AND STANDARDIZED PRECIPITATION INDEX (SPI)

Science Proceedings Series, 2019
Drought forecasting is an important forecasting procedure for preparing and managing water resources for all creatures. Natural disasters across the regions such as flooding, earthquakes, droughts etc. have caused damages to life as a result of which numerous researches have been conducted to assist in reducing the phenomenon.
openaire   +2 more sources

Spatiotemporal Characteristics and Synoptic Patterns of Dry‐Hot Winds (Sukhoviys) in Ukraine

International Journal of Climatology, EarlyView.
This study analyses dry‐hot winds, or sukhoviys, a recurrent phenomenon during the warm season across Ukraine that contributes to rapid moisture loss from soil and vegetation. The activity of sukhoviy events was assessed using the introduced Sukhoviy Station Index, accounting for their meteorological characteristics and frequency of occurrence.
Inna Semenova, Sergio M. Vicente‐Serrano   +1 more
wiley   +1 more source