hydrologic properties

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• hydrologic properties —    Those properties of a rock that govern the entrance of water and the capacity to hold transmit, and deliver water, such as porosity, effective porosity, specific retention, permeability, and the directions of maximum and minimum permeabilities …   Lexicon of Cave and Karst Terminology

• hydrologic sciences — Introduction       the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology.       In its widest sense hydrology encompasses the study of the occurrence, the… …   Universalium

• hydrologic — hydrology ► NOUN ▪ the science of the properties and distribution of water on the earth s surface. DERIVATIVES hydrologic adjective hydrological adjective hydrologist noun …   English terms dictionary

• hydrologic — hy·dro·log·ic || ‚haɪdrəʊ lÉ‘dʒɪk / lÉ’d adj. of or pertaining to hydrology, of the study of the properties and distribution of water on the earth in the atmosphere; of or pertaining to the properties and distribution of water on the… …   English contemporary dictionary

• Hydrogeology — ( hydro meaning water, and geology meaning the study of the Earth) is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth s crust, (commonly in aquifers). The term geohydrology is… …   Wikipedia

• Oceanic trench — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. The oceanic trenches are hemispheric scale long but narrow topographic depressions of the sea floor. They are also the… …   Wikipedia

• aquifer test —    A test to determine hydrologic properties of the aquifer involving the withdrawal of measured quantities of water from or addition of water to a well and the measurement of resulting changes in head in the aquifer both during and after the… …   Lexicon of Cave and Karst Terminology

• ground-water travel time —    1. The time required for ground water to travel between two locations [22].    2. The time required for a unit volume of ground water to travel between two locations. The travel time is the length of the flow path divided by the velocity,… …   Lexicon of Cave and Karst Terminology

• hydrology — hydrologic /huy dreuh loj ik/, hydrological, adj. hydrologically, adv. hydrologist, n. /huy drol euh jee/, n. 1. the science dealing with the occurrence, circulation, distribution, and properties of the waters of the earth and its atmosphere. 2.… …   Universalium

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …   Universalium