Meteorological droughts like those in summer 2003 or spring 2011 in Europe are expected to become more frequent in the future. Although the spatial extent of these drought events was large, not all regions were affected in the same way. Many catchments reacted strongly to the meteorological droughts showing low levels of streamflow and groundwater, while others hardly reacted. Also, the extent ...

Drought index is a useful tool to assess and respond to drought. However, current drought indices could not fully reveal land use effects and they have limitations in applications. Besides, El Niño Southern Oscillation (ENSO), strongly influences the climate of Florida. Hence, understanding ENSO patterns on a regional scale and developing a new land use drought index suitable for Florida are cr...

There are great advantages in using multi-temporal, multi-spectral and hyperspectral remote sensing data for dynamically and macroscopically monitoring widespread land surface. Exercising this advantage, dynamically adaptive regional drought monitoring system is established, combined with meteorological and hydrological information based upon actual ground measurements for different regions and...

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 ...

Existing drought indices have been widely used to monitor meteorological drought and agricultural drought; however, few of them are focus on drought monitoring for grassland regions. This study presented a new drought index, the Grassland Drought Index (GDI), for monitoring drought conditions in global grassland regions. These regions are vital for the environment and human society but suscepti...

The prediction of hydrological droughts is vital for surface and ground waters, reservoir levels, hydroelectric power generation, agricultural production, forest fires, climate change, the survival living things. This study aimed to forecast 1-month lead-time in Yesilirmak basin. For this purpose, support vector regression, Gaussian process regression tree, ensemble tree models were used alone ...

Drought is a complex phenomenon with high spatial and temporal variability. Water scarcity has become growing problem in Slovenia recent decades. Therefore, the variability of hydrological drought was investigated this study by analysing Standardized Streamflow Index (SSI). Monthly discharge data series from 46 gauging stations for period 1961–2016 were used to calculate SSI values at five diff...

The purpose of this work is to evaluate the applicability five drought indices (Surface Water Supply Index—SWSI, Reclamation Drought Index—RDI, Streamflow Index—SDI, Standardized Precipitation Index—SPI, and Evaporative Demand Index—EDDI) as tools for monitoring, in identifying duration, intensity, frequency hydrological droughts basins Banabuiú, Castanhão, Orós reservoirs, located state Ceará,...