Data - Wikipedia, the free encyclopedia
The word data (pronounced /ˈdeɪtə/ , /ˈdætə/ , or /ˈdɑːtə/ ) is the Latin plural of datum , neuter past participle of dare , "to give", hence "something given". The pas...
en.wikipedia.org/wiki/Data
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Referencing geodetic coordinates to the wrong datum can result in position errors of hundreds of meters. Different nations and agencies use different datums as the basis for coordinate systems used to identify positions in geographic information systems, precise positioning systems, and navigation systems.
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www.colorado.edu/geography/gcraft/notes/datum/datum.htm...
www.colorado.edu/geography/gcraft/notes/datum/datum.html
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While a projection is used in mapping to define the earth on a flat surface, a datum is used to describe the actual shape of the earth in mathematical terms. This is because the earth's surface is not perfectly round, but ellipsoid in shape.
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earth.google.com/userguide/v4/ug_importdata.html
earth.google.com/userguide/v4/ug_importdata.html
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EPA uses the OSV Bold to collect information to assess coastal waters to determine if impacts are occurring, and take corrective action when necessary. These activities include designation and monitoring of ocean dumping sites and analysis ...
http://www.epa.gov/owow/osvbold/basicinfo.html
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Internal Datum parameters used by MI Pro (Download Now) ... Datum parameters used by MI Pro up to version 7.5. 3 & 8 param datums provided ... Current Parameters for all internally defined datums used by MI Pro up to version 7.5. Three and Eight parameter datums provided in separate Tab files. *This info is NOT contained...
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www.directionsmag.com/files/index.php/view/562
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FETPIP data provide accountability and outcome information for consumer use and career information for students and counselors. One of the benefits of having the FETPIP system is that data are collected that can help facilitate comparisons....
http://www.flboe.org/fetpip/method.asp#what
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Internal datum parameters used in MapInfo Professional.; Question:; What are the datum parameter definitions used by MapInfo Professional? Answer:; The attached MapInfo .Tab files list the currently defined datum parameters (as of v8.0) used by MapInfo Professional using either 3 or 8 parameters.
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testdrive.mapinfo.com/techsupp/miprod.nsf/kbase_by_prod...
testdrive.mapinfo.com/techsupp/miprod.nsf/kbase_by_product/71C24D1304C4A05785256DD600641EB2
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The Zero datum for each gage listed is referenced to either National Geodetic Vertical Datum (NGVD)* or to the United States Engineering Datum (USED)**.
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cdec.water.ca.gov/usedngvd.html
cdec.water.ca.gov/usedngvd.html
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A comprehensive history and overview of geodetic datums such as NAD 83 and WGS 84, used with GPS. ... The European Datum 1950 (ED50) is the datum used for showing much of Western Europe and was developed after World War II when a reliable system of mapping borders was needed. It was based on the International Ellipsoid...
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geography.about.com/od/geographyintern/a/datums.htm
geography.about.com/od/geographyintern/a/datums.htm
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