Drought as a natural but temporary imbalance of water availability is the interaction between natural environment and human life resulting in diminished water resources availability and reduced carrying capacity of the ecosystems. Drought indices are essential elements for an efficient drought monitoring system. These indices make the transforming information of climatic anomalies easier and al...

Abstract Drought is a temporal decrease in water availability and occurs all climatic regions. Droughts propagate through the hydrological cycle, e.g., meteorological drought propagates to groundwater recharge drought. This research investigated propagation cycle semiarid context. Meteorological severity was determined using standardized precipitation index (SPI). A variable threshold method (S...

CRISIS AUDIT Natural Disaster • Lightning • Earthquake • Extended severe cold/heat • Extreme snow/ice conditions • Flood/drought • Hurricane/Tornado/Tsunamis Operations • Accident involving a company vehicle • Bomb threat • Data/telecommunications failure/loss of critical data • Construction delay • Cost over-run • Design error/issue • Explosion • Fire • Major utility failure • Neighborhood/com...

in recent decades, using water resources is increased for the sake of industrial, domestic and agricultural water consumptions by increase in urbanization and industrial development in karaj region that fraction of groundwater resources is too much according to the recent drought years and reduced precipitation in middle-east. these outcomes has caused groundwater level drop, reduced in aquifer...

In the semi-arid area of West Texas, drinking water is a precious commodity. Drinking water sources include water from Lake Meredith and groundwater from the Ogallala Aquifer. Water usage in this area includes farming and irrigation, municipal use or cooling water for electricity generation. As population continues to grow and water usage increases, especially during periods of drought, the ava...

BACKGROUND Climate change produces extremes in both temperature and precipitation causing increased drought severity and increased reliance on groundwater resources. Agricultural practices, which rely on groundwater, are sensitive to but also sources of contaminants, including nitrate. How agricultural contamination drives groundwater geochemistry through microbial metabolism is poorly understo...

Abstract Groundwater drought response to meteorological forcing depends on initial hydrological conditions. This makes it difficult characterise groundwater droughts and identify the vulnerability of aquifers. The objective is increase understanding memory in lowland post-glacial environments. Eighty-one hydrographs are analysed, using standardised level index (SGI) precipitation index. Memory ...

Sedimentary plains with extremely flat topography, such as the Pampas in Argentina, often display flooding–drought cycles. Changes in water table depth and surface water coverage affect natural and cultivated vegetation, wildlife, and people. Here, we describe groundwater dynamics and water-body expansion in a 10-year flooding cycle in the valuable agricultural lands of Western Pampas. We analy...