In this paper, we provide a Lagrangian analysis of the anomalies in the moisture transport during two important drought events (1989/1990 and 2003) configured over the Danube River Basin (DRB) region. Firstly, we identified the drought episodes that occurred over the DRB in the period of 1980–2014 through the Standardized Precipitation Evapotranspiration Index (SPEI). SPEI was calculated using ...

Jiangsu is an important agricultural province in China. Winter wheat, as the second major grain crop in the province, is greatly affected by moisture variations. The objective of this study was to investigate whether there were significant trends in changes in the moisture conditions during wheat growing seasons over the past decades and how the wheat yields responded to different moisture leve...

The comprehensive assessment of climatic and hydrological droughts in terms of their temporal and spatial evolutions is very important for water resources management and social development in the basin scale. To study the spatial and temporal changes of climatic and hydrological droughts and the relationships between them, the SPEI and SDI are adopted to assess the changes and the correlations ...

Drought management in Sri Lanka is mostly limited to relief provision due the shortage of scientific details develop sufficient drought risk management. Therefore, spatio-temporal variability droughts two cropping seasons, Yala (May–August) and Maha (October–March) Lanka, have been investigated using Standardized Precipitation Evapotranspiration Index (SPEI). The SPEI-4 at August (SPEI-4August)...

In recent decades, the area and proportion of planted forests have increased; thus, understanding the responses of planted and natural forests to drought are crucial because it forms the basis for forest risk assessments and management strategies. In this study, we combined the moderate-resolution imaging spectroradiometer (MODIS) enhanced vegetation index (EVI), meteorological aridity indices,...

introduction: drought is a natural and recurrent feature of climate. the characterizations of it may change under the effect of climate change in future periods. during the last few decades a number of different indices have been developed to quantify drought probabilities. droughts are caused by disruptions to an expected precipitation pattern and can be intensified by unusually high temperatu...

There are limited literature on the impacts of drought crop yields in warm regions such as southwest China. Drought vulnerability four different crops (wheat, rice, maize and sugarcane) cultivated three provinces (Sichuan, Guizhou Yunnan) within China were investigated this study. It was based index standardized precipitation evapotranspiration (SPEI) for -3- -6 months timescales (SPEI-3 SPEI-6...