Gourt > Science > Social Sciences > Geography > Geographic Information Systems > Data
Data is the plural of datum. A datum is a statement accepted at face value (a "given"). A large class of practically important statements are measurements or observations of a variable. Such statements may comprise numbers, words, or images.
Etymology
The word data is the plural of Latin datum, neuter past participle of dare, "to give", hence "something given". The past participle of "to give" has been used for millennia, in the sense of a statement accepted at face value; one of the works of Euclid, circa 300 BC, was the Dedomena (in Latin, Data). In discussions of problems in geometry, mathematics, engineering, and so on, the terms givens and data are used interchangeably. Such usage is the origin of data as a concept in computer science: data are numbers, words, images, etc., accepted as they stand.
Usage in English
In English, the word datum is still used in the general sense of "something given", and more specifically in cartography, geography, geology, and drafting to mean a reference point, reference line, or reference surface. The Latin plural data is also used as a plural in English, but it is also commonly treated as a mass noun and used in the singular. For example, "This is all the data from the experiment". This usage is inconsistent with the rules of Latin grammar, which would suggest, "These are the data ..."; each measurement or result is a single datum. However, given the variety and irregularity of English plural constructions, there seem to be no grounds for arguing that data is incorrect as a singular mass noun in English. More on [ Data ]
Data Centers :: Earth Sciences
Example twitter weather data 15:30 PM 25.9°C 56 pct 3.5 km/h O #wdisplay
Ebola_z (FanckFeuillade) Thu, 07 Jan 2010 11:32:26 -0000
Example twitter weather data 15:30 PM 25.9°C 56 pct 3.5 km/h O #wdisplay
Data Robotics Drobo USB 2.0 & FireWire Enclosure $352 at Buy.com ...: http://url4.eu/14IRh
droboplus (droboplus) Thu, 07 Jan 2010 11:32:25 -0000
Data Robotics Drobo USB 2.0 & FireWire Enclosure $352 at Buy.com ...: http://url4.eu/14IRh
Loan Declines Data Available: 48 hour loan declines - 15000 available. Dated Loan declines 50000 + available. Name... http://bit.ly/4OCemJ
realdebt (Bernie Dozier) Thu, 07 Jan 2010 11:32:17 -0000
Loan Declines Data Available: 48 hour loan declines - 15000 available. Dated Loan declines 50000 + available. Name... http://bit.ly/4OCemJ
@Rchards Logged into data gov site and it all worked as expected, pretty good password strength prompts - liked it.
paulgeraghty (Paul Geraghty) Thu, 07 Jan 2010 11:32:16 -0000
@Rchards Logged into data gov site and it all worked as expected, pretty good password strength prompts - liked it.
Worlds Greenest Data Center? http://bit.ly/77PZ85
nodemarketing (Sophia Calwin) Thu, 07 Jan 2010 11:32:16 -0000
Worlds Greenest Data Center? http://bit.ly/77PZ85
New post: Kelley Technologies ,Las Vegas - Data Communications Equip/Systems (Whol) (http://wethepeoplenevada.org/?p=6147)
nevadapeople (nevada people) Thu, 07 Jan 2010 11:32:02 -0000
New post: Kelley Technologies ,Las Vegas - Data Communications Equip/Systems (Whol) (http://wethepeoplenevada.org/?p=6147)
3D landscape visualization for MAXON CINAMA 4D - Offers wire-meshes for the rendering software MAXON CINEMA 4D taken from the GTOPO30 dataset of the U.S. Geogical Survey. Also provide matched satellite images textures from NASA.
Meta Description: [ Give our world in a new dimension! The world as 3D wiremesh... ]
@City Inc - iStreetView - 360-degree Geocoded Street level Imaging on the Web
Aerial photography and satellite imagery - Company sells 1 foot orthoimagery and LANDSAT satellite imagery.
Meta Description: [ Aerial Photography, Air Photos, Aerial Maps, Aerial Imagery, Satellite Imagery, Remote Sensing Data for GIS ]
American Digital Cartography, Inc. - Providers of digital mapping data for use with CAD and GIS systems.
Meta Description: [ Digital street map data for GIS formats including ESRI, MapInfo and Oracle 10g. Available by the county, state, entire US. ]
Baltic Sea GIS, Maps and Statistical Database - GIS data of land cover, population and other information for the Baltic Sea drainage basin.
Census Watch - ESRI sponsored clearing house, providing information about US census tract TIGER data availability and modifications.
404
Colorado Office of Emergency Management: Cartography and Mapping - State and local government oriented GIS data.
Community Cartography - An Internet mapping service and spatial data warehouse.
Meta Description: [ The Subscription Mapping Service and GIS Data Warehouse for the New York Metropolitan Region ]
Community Mapping Network - Created to share a wealth of natural resource information and maps with communities in British Columbia, Canada. Allows users to add data.
Digital Chart of the World - Download the boundaries and layers of different countries, in Arc/INFO export format.
500
Digital Data Technologies, Inc (DDTi) - Road centerline and address base mapping for GIS and E9-1-1.
Meta Description: [ Digital Data Technologies, Inc. ]
Doyle's GIS Info Page - Information about GIS and Links to GIS site for mostly free data for the USA.
Meta Description: [ GIS links for the USA includes DRGs, topographic maps, DOQQs, aerial photographs, and other GIS links ]
Earthmaps - Data, travel maps, recreation, and earth science applications.
Meta Description: [ earthmaps specializes in geology, maps, geospatial data, montana geology, travel, K-12 resources, geology equipment ]
Energisite.com - Internet delivery of online digital and raster well logs, well data, GeoCadd culture, and Analytical software using esri and AutoDesk MapGuide and AnGIS technologies.
Meta Description: [ Energisite access to Canada's most comprehensive library of digital and raster logs, well documents, and ticket information. ]
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Forest Spatial Information Catalog - The Forest Spatial Information Catalog (FSIC) is a central repository for forest related spatial metadata.
Geographic Data Technology - Digital map database compiler focused on the Americas.
Meta Description: [ Learn about industry-leading digital mapping, navigation and map data solutions from Tele Atlas. ]
GeographX Digital Mapping - New Zealand land information and GIS services. Site offers some free data.
Meta Description: [ New Zealand map company, specialising in custom mapping and 3d visualisation. ]
Geosign Corporation - Provides geographic data for franchises and yellow-pages listed companies.
Meta Description: [ Geosign Corporation is a privately owned Internet publishing company specializing in consumer-oriented informational websites, shopping directories and search products. Learn more about Geosign Corporation and our extensive portfolio of websites here! ]
Geospace - Provides spatial data services.
GIS Data Depot - Provides free GIS data downloads and creates custom spatial data CD-ROMs.
Meta Description: [ The GIS Data Depot provides FREE GIS data downloads and creates custom GIS data CD-ROMs for CAD, mapping, and location based applications. ]
GIS Express - Offers satellite and aerial images.
Meta Description: [ GIS Express® the one-stop shop for imagery solutions. ]
Go Spatial Limited - Producer of digital geographic data suitable for reference base mapping at global, regional or national levels.
Meta Description: [ Go Spatial Limited is a leading supplier of global GIS (geographic information systems) data products as well as digital geological map data for Madagascar. This site features, online mapping and GIS data, portable maps, product and service information and much more. ]
GTOPO30 - Global Topographic Data - Digital elevation model (DEM) developed to meet the needs of geospatial data users for 30-arc second elevation data.
Hawaii Statewide GIS Program - Free downloadable GIS spatial data, metadata, and maps.
Meta Description: [ The Hawaii Statewide GIS Program site is a repository of free download GIS spatial data, metadata, and maps. ]
Infoshare: Community Data on New York City - Profile and compare neighborhoods, and produce original tables.
Kansas Geospatial Community - State of Kansas Data access and support center (DASC). DASC catalogues, archives, and distributes databases with FGDC compliant metadata and direct FTP access.
Louisiana Statewide GIS - Contains GIS and mapping data on the state of Louisiana.
Meta Description: [ Atlas: The Louisiana Statewide GIS ]
MapFocus GeoTIFFs - Digital raster graphics for GIS and CAD applications. Includes continental US coverage, full resolution topography.
Meta Description: [ Andreas stellt faire Internet Casinos vor ]
500
MASDEC GIS - Contain oceanographic data for the Straits of Malacca, Malaysia.
500
Metart - ARTEMIS and AGROMET data and information. Satellite images, meteorological data and related tools.
Meta Description: [ FAO-SDRN ARTEMIS/AGROMET DATA and INFORMATION. The Website of the ARTEMIS and AgroMet groups of the Environment and Natural Resources Service, Sustainable Development Departmant of the Food and Agriculture Organisation. ]
microDATA GIS - Spatial databases and enhanced 911 (E911) mapping and database solutions.
500
National Geospatial Data Framework - United Kingdom - Geospatial data infrastructure for the United Kingdom. Runs the UK Standard Geographic Base.
National Spatial Information Framework - South Africa - Geospatial data infrastructure for South Africa.
New York State GIS Clearinghouse - Operated by the New York State Office for Technology. Provides access to the New York State GIS Metadata and Data Repository.
NOS Data Explorer - Offers interactive mapping tools that allow users to locate NOS products in any area in the United States and its territories through a metadata catalog.
Meta Description: [ The National Oceanic and Atmospheric Administration (NOAA) is a federal agency focused on the condition of the oceans and the atmosphere. It plays
several distinct roles within the Department of Commerce. ]
Rainwater Basin GIS data site - This site provides free GIS data sets pertaining to the Rainwater Basin wetlands in Nebraska.
500
Rhode Island GIS - Data clearinghouse for the state of Rhode Island.
Meta Description: [ The State of Rhode Island Geographic Information System Database ]
Tennessee Spatial Data Server - GIS data for the state of Tennessee. DOQQs, DRGs, DEMs, boundaries, wetlands, and geology.
Texas Natural Resources Information System - Clearinghouse for natural resources and GIS data. Online holdings include DOQs, DEMs and many vector datasets.
Meta Description: [ The Texas Natural Resource Information System is the states clearinghouse
for geospatial natural resource data and Geographic Information Systems (GIS) data. ]
The Climate Source - Distributor of spatial climate data developed by Oregon State University's PRISM mapping program.
Meta Description: [ The Climate Source, distributor of spatial climate data sets in GIS formats, precipitation, temperature, dewpoint, relative humidity ]
The Data Depot - A catalogue of European mapping, geocoding and geodemographic data sets for use in GIS software.
Meta Description: [ Data for business applications such as market analysis, territory planning, customer profiling, database marketing, site location, trade area evaluation, consumer and business to business marketing ]
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The DataStore - Offers downloadable digital GIS data and maps.
500
The Global Landsform Database - Offers downloadable maps including GIS, 3D and state maps with free preview.
Meta Description: [ Downloadable Maps - Digital maps including GIS maps, 3-D Maps, State maps and more. We provide downloadable, digital maps that you may preview for FREE. ]
Transnational Wadden Sea Information Service - Indices, GIS datasets and data source holders in countries around the Wadden Sea.
Meta Description: [ Wadsis will result in a transnational network of webites providing better overview, indexes and back ground information on GIS-datasets and data source holders in countries around the Wadden Sea. ]
404
TTI Production - Remote Sensing and Image Processing - Specific geographic databases compatible with the majority of the GIS of the market.
Meta Description: [ Télédétection, SIG, Aster, MNT, Landsat 7, Cartographie, Exploration pétrolière,Géologie, Environnement, image satellite, images satellitales, photogrammétrie, Spot, Landsat, USGS, SIGEOL, géologique, photo-interprétation, base de données ]
United States National Atlas - Map layers available to the public.
Meta Description: [ The National Atlas of the United States contains many map data sets that are used to produce the maps in the map maker, printable maps, paper maps and dynamic maps. This page provides links to the map layers available in the atlas, and geospatial data that can be downloaded for free or ordered on... ]
University Library Digital Spatial Data Catalog - Searchable catalog of data/metadata managed by Numeric and Spatial Data Services at the University of Michigan Library
USGS Geography - National mapping information from the U.S. Geological Survey. A good place to start the search for many kinds of GIS data.
USGSdigital - Provider of digital cartographic base map data for use in ESRI GIS mapping software such as ArcView, ArcInfo, and Desktop ArcGIS. Products include DEM, DLG, DRG, and DOQQ.
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