earth-info.nga.milNGA - Office of Geomatics

Office of Geomatics HOME (current) WGS 84 PRECISE IMAGERY COORDINATE SYSTEMS ELEVATION GEODETIC SURVEYS GEOSCIENCES GNSS EQUIPMENT LOAN ABOUT Office of Geomatics Enabling GEOINT accuracy through geodetic, geophysical and photogrammetric sciences and content. "Geodesy remains our life blood" | Robert Cardillo, NGA Director | The Director’s Intent, 10/3/14 Welcome to the Office of Geomatics For quick access to data, apps and services, please select from the tabbed menu below. For more detailed information about each product, please choose from the menu bar at the top of the screen. WGS 84 Data & Apps Services Precise Imagery Data Services Coordinate Systems Data Apps Services Elevation Data Services Geodetic Surveys Geosciences GNSS with it’s own id that does not conflict with id’s of the inserted files.WGS 84 DATA & APPS Earth Gravitational Model 2008 (EGM2008) Data and Apps The following links contain documentation, source code, data, and supporting inputs and tools for EGM2008. FILE/LINK DESCRIPTION EGM2008 Spherical Harmonics (104MB) DownloadZip archive containing all EGM2008 Spherical Harmonics code and documentation. EGM2008 2.5 Minute Interpolation Grid (128MB) Zip archive containing all EGM2008 2.5 Minute Interpolation Grid code and documentation. EGM96 and EGM08 Geoid Calculator Online calculator to determine EGM96 and EGM08 geoid height based on latitude and longitude inputs. DownloadEGM2008 Spherical Harmonics (104MB)Earth Gravitational Model 96 (EGM96) Data and Apps The following links contain documentation, source code, data, and supporting inputs and tools for EGM96. FILE/LINK DESCRIPTION 360 Spherical Harmonics Zip archive containing all EGM96 360 Spherical Harmonics code and documentation. 15 Minute Interpolation Grid Zip archive containing all EGM96 15 Minute Interpolation Grid code and documentation. EGM96 and EGM08 Geoid Calculator Online calculator to determine EGM96 and EGM08 geoid height based on latitude and longitude inputs. Earth Gravitational Model 1984 (EGM84) Data and Apps The following links contain documentation, source code, data, and supporting inputs and tools for EGM84. FILE/LINK DESCRIPTION 180 Spherical Harmonics Zip archive containing all EGM84 Spherical Harmonics code and documentation. 30 Minute Interpolation Grid Zip archive containing all EGM84 30 Minute Interpolation Grid code and documentation. World Magnetic Model 2020 - Data The World Magnetic Model (WMM) is a joint product of the United States’ National Geospatial-Intelligence Agency (NGA) and the United Kingdom’s Defence Geographic Centre (DGC). The WMM was developed jointly by the National Centers for Environmental Information (NCEI, Boulder CO, USA) (formerly National Geophysical Data Center (NGDC)) and the British Geological Survey (BGS, Edinburgh, Scotland). Check the NOAA website on the open internet for the most recent annual report of the status of the WMM ( https://www.ncei.noaa.gov/products/world-magnetic-model ). For more information on the WMM and how to implement the coefficients, please read the WMM 2020 Technical Report . Download WMM 2020 World Magnetic Model 2020 - Apps The NOAA/BGS calculators can be found on the open internet ( https://www.ncei.noaa.gov/products/world-magnetic-model ). Reference Frame - Data Relationship to International Terrestrial Reference Frame: The realization of a system into a frame is accomplished through the establishment of physical reference markers whose coordinates are consistent with its definition. Following this model, the WGS 84 Reference Frame (WGS 84 RF) is made real through the Cartesian coordinates of the Antenna Reference Points at the NGA/USSF GPS Monitor Stations. WGS 84 RF is aligned to ITRF to within one centimeter in each 3D component. At this level, NGA states the two frames are coincident for positioning, navigation, and targeting. The 7-parameter transformation from WGS 84-to-ITRF is zero in all components by design. To support this claim two sets of metrics are provided: The 7-parameter transformations between the IGS GPS Precise Ephemerides and the NGA GPS Precise Ephemerides with the view that each is a reflection of their underlying reference frames. Download IGS vs NGA The offsets in Precise Point Positioning solutions using NGA GPS Precise Ephemerides to a subset of IGS stations’ coordinates as presented in the SINEX data. Download SINEX Offsets Reference: National Geospatial-Intelligence Agency (NGA) Standardization Document Department of Defense, World Geodetic System 1984, Its Definition and Relationships with Local Geodetic Systems” Version 1.0.0 NGA.STND.0036_1.0.0_WGS84 available in NSG Standards Registry MSP (Mensuration Services Program) GEOTRANS (Geographic Translator) v3.9 MSP GEOTRANS is the NGA and DOD approved coordinate converter and datum translator. The user-friendly GUI has features including batch conversion capability, a choice of precision levels, and the capability to add your own datum. MSP GEOTRANS can be downloaded to run as a stand-alone application. Available downloads are listed (below). Operating Systems and Compilers Supported: Windows 10, 32-bit, Visual Studio 2015 Windows 10, 64-bit, Visual Studio 2015 RHEL 7, 64-bit, GCC 4.8.5 NOTE: Since version 3.8, GeoTrans retired support for all Windows versions using the Visual Studio 2010, 2012, and 2013 compilers, and Red Hat Enterprise Linux 6. New Enhancements: Added support for common European Petroleum Survey Group (EPSG) codes Bug Fixes: Fixed a bug in the GARS::convertToGeodetic code to correct out-of-range longitudes Corrected a bug in an argument for the method DatumLibraryImplementation::GeodeticDatumShift MSP GEOTRANS Documents FILE/LINK MSP GeoTrans 3.9 Release Notes MSP GeoTrans 3.9 User’s Guide MSP GeoTrans 3.9 Programmer’s Guide MSP GeoTrans 3.9 Terms of Use MSP GEOTRANS Downloads GeoTrans 3.9 requires Java Runtime Environment (JRE) 1.8 or later to execute (JRE 1.8.0.256 or later is recommended). Refer to the MSP GeoTrans 3.9 Release Notes for information on how to check your Java version and download JRE 1.8.0.256. There are four versions of GeoTrans available for download, one intended for end users and three for software developers. After downloading the appropriate version please refer to the MSP GeoTrans 3.9 Release Notes for proper installation instructions and for detailed descriptions of the changes included in this release. To verify download integrity, please get the checksums here . End User Version: The End User version is recommended for the majority of the GeoTrans users and contains everything necessary to run GeoTrans, to include the GeoTrans on-line help. Windows users should determine whether the 32- or 64-bit version is appropriate for their installation based on whether they have a 32- or 64-bit version of Java installed. Windows 32-bit End User (Self-installer) Windows 64-bit End User (Self-installer) Windows End User (All Files) Linux End User (All Files) Developer Version: The Developer version is for software developers and contains the GeoTrans executable software plus the GeoTrans source code, documentation and a programmer’s guide. Windows Developer Linux Developer MGRS Version: The MGRS version is for software developers who only need the MGRS, UTM, UPS, Transverse Mercator and Polar Stereographic modules, source code and documentation. It does not include any GeoTrans executable software. MGRS Windows MGRS Linux Master Version: The Master version is for software developers and includes all of the GeoTrans executables for all platforms, all source code and all documentation. The only difference between the Windows and Linux version is the method used to zip the files. Windows Master Linux Master MSP GEOTRANS Assistance Having trouble starting GEOTRANS? Here are some suggestions If you have installed GEOTRANS and are unable to get it to start (no message given) you may need to download the MS Visual C++ Redistributable Package. This software is normally included on a...