Management of the quality of the Nation’s water requires large quantities of information describing current conditions and related environmental factors. Such information is expensive to collect and difficult to interpret over large scales. To support the efficient use and interpretation of available water-resource information, the U.S. Geological Survey (USGS) developed a spatial water-quality...

various water harvesting interventions. A direct consequence of increased groundwater recharge in an aquifer is a range of social and economic benefits accruing from it – through improved provisioning of drinking water, irrigation and other uses. One of the visible economic benefits is often through supplemental irrigation to crops and increase in cropping intensity. The question often arising ...

Arguments over the relative importance of increasing consumption ('quantity') versus improving water safety ('quality') have been taking place since at least the beginning of the first United Nations water decade (the 1980s). For those living distant from a water source, using only around 3‐4 litres per person per day, and often suffering from hygiene related disease, the logical priority is to...

Land use and climate change can accelerate the depletion of freshwater resources that support humans and ecosystem services on a global scale. Here, we briefly review studies from around the world, and highlight those in this special issue. We identify stages that characterize increasing interaction between land use and climate change. During the first stage, hydrologic modifications and the bu...

A case of multiple myeloma with hyperproteinemia has recently been observed in which there was obtained, by prolonged dialysis of the blood plasma against distilled water, a large quantity of viscous protein. The excessive quantity of this protein, and the absence of reports of a similar observation in multiple myeloma, with the exception which will be discussed below, makes a record of the cir...

We report the unusual case of a woman who suffered grand mal seizures in the emergency department after ingesting approximately 6 L of water in the course of preparing for a pelvic ultrasound examination. The cause appears to have been due to dilutional hyponatremia, despite normal renal function, caused by the rapid ingestion of a large volume of water. We believe the practice of encouraging p...

Bentonite is a native, colloidal, hydrated aluminum silicate. It occurs as a very fine, odorless, pale buff or cream-colored powder, free from grit, and has a slightly earthy taste. Although it is insoluble in water, it swells to approximately 12 times its volume when added to water. Bentonite magma is prepared by adding 50 gm. of bentonite to a sufficient quantity of purified water to make 1 l...

Back Propagation (BP) neural network, Widely adopted and utilized in automatic control, image recognition, hydrological forecasting and water quality evaluation, etc., as one of the Artificial Neural Networks, has stronger function and property of mapping, classification, functional fitting. This article takes the water flow of Lanzhou section of Yellow river in China as an example by the way o...

Using the five-site transferable intermolecular potential (TIP5P) we perform molecular dynamics simulations to investigate the relationship between the excess entropy and anomalies of water. We find that the two-body excess entropy is an ideal quantity to predict the regions of structural, dynamic, and thermodynamic anomalies of water in its pressure-temperature and density-temperature phase di...