groundwater aquifers
111Surface water — For water masses on the surface of the world ocean, see Surface water (ocean). : For water masses on the surface of land masses, see Surface water (land). Water collecting on the ground or in a stream, river, lake, wetland, or ocean is called… …
112Water resources management in Colombia — Colombia has a long and well established framework for water resources management. Water resources availability per capita in Colombia was 45,408 cubic meters in 2007, way above the world’s average of 8,209. The country is particularly prone to… …
113Water supply and sanitation in Israel — is intricately linked to the historical development of Israel in the context of scarce water resources. Because the coastal plain of historical Palestine had few water resources, Theodor Herzl already envisioned the transfer of water from the… …
114Nitrogen cycle — Schematic representation of the flow of nitrogen through the environment. The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle, providing different forms of nitrogen compounds assimilable by higher …
115Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …
116Vadose zone — [ capillary fringe, water table, and phreatic or saturated zone. (Source: United States Geological Survey.) ] The vadose zone, also termed the unsaturated zone, is the portion of Earth between the land surface and the phreatic zone or zone of… …
117Hydraulic conductivity — Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soil or rock, that describes the ease with which water can move through pore spaces or fractures. It depends on the intrinsic permeability of the material… …
118Hydrography of the Oak Ridges Moraine — Preliminary research on the hydrology of the Oak Ridges Moraine began in the 1970s, but a broader research effort including the impact of urban development on the aquifer system and Great Lakes water quality was established in 1993.ref|gsoc The… …
119Foreland basin — basins, where accommodation space is generated by lithospheric extension. Types of Foreland BasinForeland basins can be divided into two categories: * Peripheral (Pro) foreland basins, which occur on the plate that is subducted or underthrust… …
120Dupuit assumption — The Dupuit assumption holds that groundwater moves horizontally in an unconfined aquifer, and that the groundwater discharge is proportional to the saturated aquifer thickness. It was first designed by Jules Dupuit in 1863 to simplify the… …
