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own respective geodetic datums. The North
American-Pacific Geopotential Datum of 2022 (NAPGD2022) will separately define the height system of the United States and its territories, replacing NAVD88. It will use a geoid model accurate to 1 centimeter (0.4") to relate orthometric height to ellipsoidal height measured by GPS, eliminating the need for future leveling projects. This geoid model will be based on airborne and terrestrial gravity measurements collected by NGS's GRAV-D program as well as satellite-based gravity models derived from observations collected by
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NGS will release new datums in 2022. The North
American Terrestrial Reference Frame of 2022 (NATRF2022) will supersede NAD83 in defining the geometric relationship between the North American plate and the ITRF. United States territories on the Pacific, Caribbean, and Mariana plates will have their
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in its work. Upon the creation of NOAA in 1970, the Coast and
Geodetic Survey was abolished and its responsibilities were split among various agencies and offices of NOAA. The Coast and Geodetic Survey′s former geodetic responsibilities were placed under the new National Geodetic Survey in NOAA's
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NGS provides a number of other public services. It maps changing shorelines in the United States and provides aerial imagery of regions affected by natural disasters, enabling rapid damage assessment by emergency managers and members of the public. The Online
Positioning and User Service (OPUS)
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167:(NSRS), "a consistent coordinate system that defines latitude, longitude, height, scale, gravity, and orientation throughout the United States". NGS is responsible for defining the NSRS and its relationship with the
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reference antennas. NGS is responsible for computing the relationship between NAD83 and the ITRF. The physical components of the NSRS are reflected in its height system, defined by the vertical datum
52:, providing the foundation for transportation and communication, mapping and charting, and a large number of science and engineering applications. Since its founding in 1970, it has been part of the
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defines the geometric relationship between points within the United States in three-dimensional space. The datum may be accessed via NGS's network of survey marks or through the
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processes user-input GPS data and outputs position solutions within the NSRS. The agency offers other tools for conversion between datums.
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Closeup of a United States Coast and
Geodetic Survey marker embedded in a large rock in front of the Noroton Volunteer Fire Department in
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The
National Geodetic Survey's history and heritage are intertwined with those of other NOAA offices. It traces its history to the
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171:(ITRF). The NSRS enables precise and accessible knowledge of where things are in the United States and its territories.
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was named NGS Director, becoming the first woman to head either NGS or any of its ancestor organizations.
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The NSRS may be divided into its geometric and physical components. The official
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210:(the level surface that best approximates sea level) and its slope, the
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Office of the
Assistant Secretary for Insular and International Affairs
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Geographic data and information organizations in the United States
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US Department of
Commerce, NOAA, National Geodetic Survey.
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US Department of
Commerce, NOAA, National Geodetic Survey.
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White House Office of Energy and
Climate Change Policy
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Office of Surface Mining, Reclamation, and Enforcement
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United States Coast and Geodetic Survey § History
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rotates and deforms over time due to crustal strain,
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The National Geodetic Survey is an office of NOAA's
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National Institute of Environmental Health Sciences
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206:measurements and develops regional models of the
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615:Office of Energy Efficiency and Renewable Energy
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570:National Oceanic and Atmospheric Administration
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54:National Oceanic and Atmospheric Administration
826:Environmental Science Services Administration
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628:National Laboratories and Technology Centers
391:: CS1 maint: multiple names: authors list (
358:: CS1 maint: multiple names: authors list (
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800:Clean Energy Innovation and Implementation
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169:International Terrestrial Reference Frame
136:National Ocean Survey (later renamed the
16:U.S. federal surveying and mapping agency
184:Continuously Operating Reference Station
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877:Government agencies established in 1970
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777:Combat Capabilities Development Command
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288:"National Geodetic Survey – What We Do"
163:. Its core function is to maintain the
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21:United States Coast and Geodetic Survey
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671:Natural Resources Conservation Service
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48:that defines and manages a national
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704:Science and Technology Directorate
619:Office of Environmental Management
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787:Executive Office of the President
675:National Water and Climate Center
522:Bureau of Ocean Energy Management
449:United States government agencies
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375:"xGEOID16 Evaluation Computation"
165:National Spatial Reference System
810:Council on Environmental Quality
590:Oceanic and Atmospheric Research
342:"Naming Conventions, New Datums"
292:National Geodetic Survey Website
696:Department of Homeland Security
542:United States Geological Survey
465:Environmental Protection Agency
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25:United States Geological Survey
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56:(NOAA), a division within the
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831:United States Fish Commission
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194:. This datum is a network of
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767:Joint Typhoon Warning Center
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42:United States federal agency
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212:deflection of the vertical
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99:East Falls Church station
97:A metro survey marker at
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317:National Geodetic Survey
198:obtained through spirit
34:National Geodetic Survey
19:Not to be confused with
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493:Smithsonian Institution
129:U.S. federal government
562:Department of Commerce
178:of the United States,
161:National Ocean Service
138:National Ocean Service
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58:Department of Commerce
867:Geodesy organizations
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527:Bureau of Reclamation
453:environmental science
117:Further information:
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607:Department of Energy
256:Height Modernization
220:post-glacial rebound
216:North American plate
155:Purpose and function
149:Juliana P. Blackwell
656:Farm Service Agency
240:satellite altimetry
196:orthometric heights
125:Survey of the Coast
82:A survey marker in
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186:(CORS) network of
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320:. Retrieved
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313:"New Datums"
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295:. Retrieved
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73:Connecticut
856:Categories
272:References
266:Topography
242:missions.
224:subsidence
84:Wickenburg
322:March 21,
261:Surveying
44:based in
387:cite web
354:cite web
250:See also
200:leveling
147:officer
107:Virginia
819:Defunct
297:May 27,
204:gravity
133:geodesy
113:History
88:Arizona
40:) is a
238:, and
192:NAVD88
69:Darien
232:GRACE
208:geoid
180:NAD83
393:link
360:link
324:2017
299:2013
236:GOCE
32:The
188:GPS
140:).
101:in
38:NGS
23:or
858::
389:}}
385:{{
377:.
356:}}
352:{{
344:.
332:^
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279:^
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36:(
27:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
