Results 21 to 30 of about 25,918 (255)

Improved Standard Precipitation Index and drought characteristics

open access: yesInternational Journal of Global Warming, 2021
In many regions of the world, and particularly in the eastern Mediterranean region, there is a general precipitation decrease tendency according to the global circulation model (GCM) and the regional climate change models (RegCM). Dry spells and their temporal occurrences as droughts affect water resources, and hence, agriculture and food securities ...
openaire   +1 more source

Drought and Trend Analysis of Rize Station with Standardized Precipitation Index and Standardized Precipitation Evapotranspiration Index Methods

open access: yesJournal of Nature, Science & Technology, 2023
Since ancient times, drought has been one of the worst natural disasters that humanity has experienced. Drought, which is likely to occur locally or regionally can be defined as the lack of precipitation in a certain period of time. Objectively determining long-term droughts in advance enables taking measures against drought.
openaire   +1 more source

Multiscale evaluation of the standardized precipitation index as a groundwater drought indicator [PDF]

open access: yesHydrology and Earth System Sciences, 2015
Abstract. The lack of comprehensive groundwater observations at regional and global scales has promoted the use of alternative proxies and indices to quantify and predict groundwater droughts. Among them, the Standardized Precipitation Index (SPI) is commonly used to characterize droughts in different compartments of the hydro-meteorological system. In
Rohini Kumar   +8 more
openaire   +3 more sources

Application and Comparison of Standardized Precipitation and Standardized Precipitation Evapotranspiration Indices for Evaluating Meteorological Drought Condition of Tehran Province [PDF]

open access: yesمدیریت بیابان, 2014
Numerous indicators for drought monitoring in different time scales have been used for monthly and yearly data series. One of the limitations of conventional indicators such as the Standardized Precipitation Index (SPI) is no attention to the water ...
Kazem Nosrati   +2 more
doaj   +1 more source

On the Sensitivity of Standardized-Precipitation-Evapotranspiration and Aridity Indexes Using Alternative Potential Evapotranspiration Models

open access: yesHydrology, 2023
This paper examines the impacts of three different potential evapotranspiration (PET) models on drought severity and frequencies indicated by the standardized precipitation index (SPEI). The standardized precipitation-evapotranspiration index is a recent
Aristoteles Tegos   +3 more
doaj   +1 more source

Spatial-temporal variation and impacts of drought in Xinjiang (Northwest China) during 1961–2015 [PDF]

open access: yesPeerJ, 2018
Observations indicate that temperature and precipitation patterns changed dramatically in Xinjiang, northwestern China, between 1961 and 2015. Dramatic changes in climatic conditions can bring about adverse effects.
Junqiang Yao, Yong Zhao, Xiaojing Yu
doaj   +2 more sources

Cover crops did not improve soil health but hydroclimatology may guide decisions preventing cash crop yield loss

open access: yesFrontiers in Soil Science, 2023
IntroductionCover crop (CC) is an essential tool to improve or maintain soil health, potentially improving cash crop productivity. Several recent reports of cash crop yield reduction following cover cropping necessitated this research to guide efficient ...
Debankur Sanyal   +6 more
doaj   +1 more source

Characterizing meteorological and hydrological droughts: A case study of the Gediz River Basin, Turkey

open access: yesMeteorological Applications, 2020
The determination of the drought characteristics of a basin that feeds a reservoir and provides water for agricultural irrigation or energy production is important for the sustainable management of reservoirs. In the present study, the meteorological and
Ahmet Ali Kumanlioglu
doaj   +1 more source

Feasibility of Calculating Standardized Precipitation Index with Short-Term Precipitation Data in China

open access: yesAtmosphere, 2021
At present, high-resolution drought indices are scarce, and this problem has restricted the development of refined drought analysis to some extent. This study explored the possibility of calculating the standardized precipitation index (SPI) with short ...
Dongdong Zuo   +4 more
doaj   +1 more source

Interactions between Climate and Land Cover Change over West Africa

open access: yesLand, 2023
Climate–land interaction over West Africa has often been assessed using climate simulations, although the model-based approach suffers from the limitations of climate models for the region.
Eric Mensah Mortey   +6 more
doaj   +1 more source

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