Abstract. In this study we analyze drought features at the European level over period 1901–2019 using three indices: standardized precipitation index (SPI), evapotranspiration (SPEI), and self-calibrated Palmer severity (scPDSI). The results based on SPEI scPDSI point to fact that Central Europe (CEU) Mediterranean region (MED) are becoming dryer due an increase in potential mean air temperatur...

Historical records of precipitation, streamflow and drought indices all show increased aridity since 1950 over many land areas1,2. Analyses of model-simulated soil moisture3,4, drought indices1,5,6 and precipitation-minus-evaporation7 suggest increased risk of drought in the twenty-first century. There are, however, large differences in the observed and modelsimulated drying patterns1,2,6. Reco...

Understanding the impact of drought on fire dynamics is crucial for assessing potential effects climate change wildfire activity in China. In this study, we present a series multiple linear regression (MLR) models linking burned area (BA) during mainland China’s season from 2001 to 2019, across seven regions, concurrent drought, antecedent and time trend. We estimated using Collection 6 Moderat...

abstract precipitation is an important variable which is used in definition of drought. based on precipitation amounts, some indices are devised for drought monitoring including, the standardized precipitation index (spi) and the standard index of annual precipitation (siap). each of these drought indices are classified into some classes so that each class descripts a given severity of drought....

We identified the spatiotemporal patterns of the Normalized Difference Vegetation Index (NDVI) for the years 1982-2008 in the desert areas of Northwest China and quantified the impacts of climate and non-climate factors on NDVI changes. The results indicate that although the mean NDVI has improved in 24.7% of the study region; 16.3% among the region has been stagnating in recent years and only ...

Considerable attention has recently been devoted to the linear trend of drought at the decadal to inter-decadal time scale; however, the nonlinear variation of drought at multi-decadal scales and its relation to atmospheric circulation need to be further studied. The linear and nonlinear variations of the Palmer drought severity index (PDSI) in Shandong from 1900 to 2012 and its relations to th...

Drought is a major environmental disaster in many parts of the world. Knowledge about the timing, severity and extentof drought can aid planning and decision-making. Drought indices derived from in-situ meteorological data have coarsespatial and temporal resolutions, thus, obtaining a real-time drought condition over a large area is difficult. This studyused advanced very high resolution radiom...

The aim of this study is investigation of climate change impact on Karoon3 basin in future periods. For this purpose, the simulated precipitation and potential evapotranspirationof four AOGCM models was used to simulate drought index. Monthly precipitation was calculated by inverse distance weighted method. Reclamation Drought Index (RDI) was used as watershed drought index. RDI was calculated ...

Climate change has amplified the severity of droughts with potentially adverse impacts on agriculture in western Canada. This study assessed meteorological and agricultural drought Southern Saskatchewan River Basin (SSRB) using an array indices, including Standardized Precipitation Index (SPI), Precipitation-Evapotranspiration (SPEI), Self-Calibrated Palmer Drought Severity (scPDSI), Soil Moist...