geo-, ge- +

Geographic Information System, Mapping.

1. The computer hardware, software, and technical expertise applied to assemble and to analyze geographical data; especially, the correlation of databases with graphic displays to present information; frequently employed in environmental studies.
2. An organized collection of computer hardware, software, geographic data, and personnel designed to efficiently capture, store, update, manipulate, analyze, and display all forms of geographically referenced information which can be drawn from different sources, both statistical and mapped.
3. Computer programs linking features commonly seen on maps; such as, roads, town boundaries, and water bodies, with related information not usually presented on maps; for examlple, type of road surface, population, type of agriculture, type of vegetation, or water quality information.

GIS is a unique information system in which individual observations can be spatially referenced to each other.

4. A technology that is used to view and analyze data from a geographic perspective. The technology is a piece of an organization's overall information system framework.

GIS links locations to information; such as, people to addresses, buildings to parcels of land, or streets within a network, and layers that information to give a better understanding of how it all interrelates. The user can than choose which layers to combine based on his/her purpose.

There's more information at the Geographic Information System (GIS): Index

An area based primarily on hydrologic boundaries adjusted as needed using a specified set of criteria to accommodate the inventory and analysis of natural resources.

A geographic unit can vary in scale depending on the criteria used, the level of inventory and analysis needed, and the problems perceived. In all cases, geographic units incorporate both groundwater and surface water.

1. The study of the natural features of the earth's surface, comprising topography, climate, soil, vegetation, etc. and man's responses to them.
2. The physical features of a region, area, or place; usually, the surface features.

The study of energy development, transportation, markets, or use patterns from a geographical perspective.

The branch of geology that studies the movement of subsurface water through rocks and the effect of moving water on rocks, including their erosion.

The term geohydrology is often used interchangeably with hydrogeology. Some make the minor distinction between hydrologists or engineers who are applying themselves to geology (geohydrology), and geologists applying themselves to hydrology (hydrogeology).

A figure resembling the shape of the earth.

An underground isotherm, or a line drawn on a weather map that connects places with the same temperature.

The worship of the earth; earth worship.

Referring to the history and structure of the solid portion (rocks, soils, and minerals) of the earth.

Referring to, or pertaining to, geology or the science of the earth; a science that deals with the history of the earth and its life, especially as recorded in rocks.

Disasters caused by movements and deformation of the earth's crust.

With respect to geology, or a reference to geology; the scientific study of the origin, history, and structure of the earth.

Dynamic actions or events that occur at the earth's surface as a result of the application of natural forces resulting from gravity, temperature changes, freezing and thawing, chemical reactions, seismic shaking, and the agencies of wind and moving water, ice and snow.

Where and when a force exceeds the strength of the earth's material, that material is changed by deformations, translocations, or chemical reactions.

A mined facility for the disposal of radioactive waste, using waste packages and the natural geological formations as barriers to provide waste isolation.

The deep geological repository idea involves the encapsulation of used nuclear fuel in long-term engineered casks which are placed and sealed within excavated rooms in a geological formation at a determined depth of 500 to 1000 meters below the earth's surface.

It involves the construction of a vault within a stable, low permeability bedrock, using conventional mining techniques. The bedrock and other engineered barriers are supposed to provide ecological safety over an extended time.