GIS
2006-10-20 01:47:29 · 12 answers · asked by smile_kanth 1 in Science & Mathematics ➔ Earth Sciences & Geology
GIS is Geographic Information Systems
2006-10-20 01:56:14 · answer #1 · answered by Anonymous · 1⤊ 0⤋
A geographic information system (GIS) is a system for creating, storing, analyzing and managing spatial data and associated attributes. In the strictest sense, it is a computer system capable of integrating, storing, editing, analyzing, sharing, and displaying geographically-referenced information. In a more generic sense, GIS is a tool that allows users to create interactive queries (user created searches), analyze the spatial information, and edit data. Geographic information science is the science underlying the applications and systems, taught as a degree programme by several universities.
Geographic information system technology can be used for scientific investigations, resource management, asset management, Environmental Impact Assessment, development planning, cartography, and route planning. For example, a GIS might allow emergency planners to easily calculate emergency response times in the event of a natural disaster, or a GIS might be used to find wetlands that need protection from pollution.
You could get more information from the link below...
2006-10-21 23:19:34 · answer #2 · answered by catzpaw 6 · 0⤊ 0⤋
A geographic information system (GIS) is a system for creating, storing, analyzing and managing spatial data and associated attributes. In the strictest sense, it is a computer system capable of integrating, storing, editing, analyzing, sharing, and displaying geographically-referenced information. In a more generic sense, GIS is a tool that allows users to create interactive queries (user created searches), analyze the spatial information, and edit data. Geographic information science is the science underlying the applications and systems, taught as a degree programme by several universities.
Geographic information system technology can be used for scientific investigations, resource management, asset management, Environmental Impact Assessment, development planning, cartography, and route planning. For example, a GIS might allow emergency planners to easily calculate emergency response times in the event of a natural disaster, or a GIS might be used to find wetlands that need protection from pollution.
2006-10-20 01:56:46 · answer #3 · answered by DanE 7 · 0⤊ 0⤋
Geographic Information System
is a system for creating, storing, analyzing and managing spatial data and associated attributes. In the strictest sense, it is a computer system capable of integrating, storing, editing, analyzing, sharing, and displaying geographically-referenced information. In a more generic sense, GIS is a tool that allows users to create interactive queries (user created searches), analyze the spatial information, and edit data. Geographic information science is the science underlying the applications and systems, taught as a degree programme by several universities.
2006-10-20 11:51:07 · answer #4 · answered by Geo06 5 · 0⤊ 0⤋
A geographic information system (GIS) is a system for creating, storing, analyzing and managing spatial data and associated attributes. In the strictest sense, it is a computer system capable of integrating, storing, editing, analyzing, sharing, and displaying geographically-referenced information. In a more generic sense, GIS is a tool that allows users to create interactive queries (user created searches), analyze the spatial information, and edit data. Geographic information science is the science underlying the applications and systems, taught as a degree programme by several universities.
Geographic information system technology can be used for scientific investigations, resource management, asset management, Environmental Impact Assessment, development planning, cartography, and route planning. For example, a GIS might allow emergency planners to easily calculate emergency response times in the event of a natural disaster, or a GIS might be used to find wetlands that need protection from pollution.
Modern GIS technologies rely on digital information, for which there are a number of collection methods. The most common method of data creation is digitization, where a hardcopy map or survey plan is transferred into a digital medium through the use of a computer-aided drafting (CAD) program, and georeferencing capabilities.
Data restructuring can be performed by a GIS to convert data into different formats. For example, a GIS may be used to convert a satellite image map to a vector structure by generating lines around all cells with the same classification, while determining the cell spatial relationships, such as adjacency or inclusion.
More advanced data processing can occur with image processing, a technique developed in the late 1960s by NASA and the private sector to provide contrast enhancement, false colour rendering and a variety of other techniques including use of two dimensional Fourier transforms.
Since digital data are collected and stored in various ways, the two data sources may not be entirely compatible. So a GIS must be able to convert geographic data from one structure to another.
In the past years, were there any gas stations or factories operating next to the swamp? Any within two miles and uphill from the swamp? A GIS can recognize and analyze the spatial relationships that exist within digitally stored spatial data. These topological relationships allow complex spatial modelling and analysis to be performed. Topological relationships between geometric entities traditionally include adjacency (what adjoins what), containment (what encloses what), and proximity (how close something is to something else).
The future of GIS:
Many disciplines can benefit from GIS technology. An active GIS market has resulted in lower costs and continual improvements in the hardware and software components of GIS. These developments will, in turn, result in a much wider use of the technology throughout science, government, business, and industry, with applications including real estate, public health, crime mapping, national defense, sustainable development, natural resources, transportation and logistics. GIS is also diverging into Location Based Services (LBS). LBS allows GPS enabled mobile devices to display their location in relation to fixed assets (nearest restaurant, gas station, fire hydrant), mobile assets (friends, children, police car) or to relay their position back to a central server for display or other processing. These services continue to develop with the increased integration of GPS functionality with increasingly powerful mobile electronics (Cell phones, PDA's, Laptops).
2006-10-20 01:59:35 · answer #5 · answered by n 1 · 0⤊ 0⤋
Geographical Information System (GIS): - GIS has been defined by many ways, by many people.
One of the way it has been defined is: It is a systematic integration of Computer Hardware, Software and Spatial Data, for capturing, storing, displaying, updating manipulating and analysing, in order to solve complex management problems.
How would I explain GIS to a common man : Previously we had paper maps, which were very colourful, which we couldn't modify. Then came the computer revolution, where the maps were digitised and stored in digital format. These were just entities (line, circle, polygon or point) and it use not give any information, what that entity means in geographical terms. Using these digital files we can only modify easily and reproduce it quickly. We can not use them for any analysis purpose. Then came the GIS, which made these entities intelligent. It attached a value(attribute) to these entities, with what it actually means in geographical terms.
Let me explain you, with well know GIS software ArcInfo and MapInfo. If you notice the software name. In it two words have been combined, i.e. Arc and Info making ArcInfo, Map and Info making MapInfo. Arc / Map meaning the graphical entities and Info meaning attribute. It means Arc having Information and Map having Information, makes them intelligent, which can be used for querying and analysis.
GIS can be used by any business that utilises geographical information.
For example
* exploration and mining companies use GIS information to find out prospective areas for exploration and mining and also to analyse the orebody.
* power companies use GIS to monitor and analyse the electricity load on the grid network for a particular area
* transportation companies use GIS to help determine the best route for delivering there good at less time.
* retail trade companies using GIS to determine the best location for a new outlet.
* GIS data is nowadays also used on the Internet for giving an graphical representation of the users querying.
More GIS Definitions
A definition quoted in William Huxhold's Introduction to Urban Geographic Information Systems. (New York: Oxford University Press, 1991), page 27, from some GIS/LIS '88 proceedings:
". . . The purpose of a traditional GIS is first and foremost spatial analysis. Therefore, capabilities may have limited data capture and cartographic output. Capabilities of analyses typically support decision making for specific projects and/or limited geographic areas. The map data-base characteristics (accuracy, continuity, completeness, etc.) are typically appropriate for small-scale map output. Vector and raster data interfaces may be available. However, topology is usually the sole underlying data structure for spatial analyses."
GIS is a collection of computer hardware, software, and geographic data for capturing, managing, analyzing, and displaying all forms of geographically referenced information.
A geographic information system (GIS) is a system for creating, storing, analyzing and managing spatial data and associated attributes. In the strictest sense, it is a computer system capable of integrating, storing, editing, analyzing, sharing, and displaying geographically-referenced information. In a more generic sense, GIS is a tool that allows users to create interactive queries (user created searches), analyze the spatial information, and edit data. Geographic information science is the science underlying the applications and systems, taught as a degree programme by several universities.
Geographic information system technology can be used for scientific investigations, resource management, asset management, Environmental Impact Assessment, development planning, cartography, and route planning. For example, a GIS might allow emergency planners to easily calculate emergency response times in the event of a natural disaster, or a GIS might be used to find wetlands that need protection from pollution.
2006-10-20 02:00:41 · answer #6 · answered by Anonymous · 1⤊ 0⤋
GI or G.I. is a term describing a member of the US armed forces or an item of their equipment. It may be used as an adjective or as a noun. The term is often thought to be an initialism of "Government Issue" but the origin of the term is in fact "Galvanized Iron" after the letters "GI" that were stamped on U.S. Army metal trash cans made from it.[1][2] During World War I, US soldiers sardonically referred to incoming German artillery shells as "GI cans". During the 1930s it was somehow assumed that GI stood for Government Issue and the term was applied to other equipment and the soldiers themselves. The term reached even farther use as its usage spread with the American troops during World War II.
2016-03-28 02:24:47 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Geographical Information System : A System that uses Satellite Pictures to Create , Analyze,Store Maps of different Areas of earth .
2006-10-20 02:47:37 · answer #8 · answered by Anonymous · 0⤊ 1⤋
It's abbreviation for "Geographic Information System"
2006-10-20 01:58:45 · answer #9 · answered by Arash Salimi 1 · 0⤊ 0⤋
geographic information systems
2006-10-20 01:57:05 · answer #10 · answered by Scott T 3 · 0⤊ 0⤋