This paper examines past drought and assesses future drought scenarios for the Arkansas Red River Basin using two common drought indexes, the Standardized Precipitation Index (SPI) and Palmer Drought Severity Index (PDSI). Historical climate data within the 1900–2009 time frame were used to derive the past drought index estimates. The projected climate data under two greenhouse gas emission sce...

Long-term streamflow data are vital for analysis of hydrological droughts. Using an artificial neural network (ANN) model and nine tree-ring indices, this study reconstructed the annual streamflow of the Sacramento River for the period from 1560 to 1871. Using the reconstructed streamflow data, the copula method was used for bivariate drought analysis, deriving a hydrological drought return per...

study and research on natural processes related to water including droughts and floods is necessitate for iran. due to difficulty to measure meteorological and hyrological elements effective on rainfall runoff processes in basins, selecting a suitable model, which is able to simulate these processes with the minimum input data, is necessary. in addition, understanding basin reaction to the prec...

In this study, drought analysis was carried out in the region, which includes Eastern Mediterranean, Seyhan, Ceyhan and Asi Basins located south of Turkey. total, data from 35 meteorological stations has been analyzed. As a index, Reconnaissance Drought Index (RDI) utilised. The Thornthwaite method selected calculation Potential Evapotranspiration (PET). According to results, PET values all hav...

Drought is complex and also one of the main disasters affecting China. Exploring response agricultural drought meteorological to climatic factors helps us understand causes drought. In this paper, we evaluated temporal spatial characteristics soil (SMD) explored their responses latent heat fluxes (LHF), then explained variation from perspective atmospheric circulation. The following results wer...

Abstract As a natural hazard, drought is complex multivariate phenomenon that requires more comprehensive analysis. In this study, we studied meteorological, agricultural, and hydrological events with precipitation, soil moisture, stream flow data for the study area. The risk analysis duration severity of three kinds were analyzed univariate bivariate return periods based on copula. Furthermore...

Efforts to monitor the broad-scale impacts of drought on forests often come up short. Drought is a direct stressor of forests as well as a driver of secondary disturbance agents, making a full accounting of drought impacts challenging. General impacts can be inferred from moisture deficits quantified using precipitation and temperature measurements. However, derived meteorological indices may n...