Adobe PDF files support 3D features and surfaces. Global Mapper v15.0 and later can both import data from 3D PDF files and export loaded terrain, draped imagery, and 3D vector data to 3D PDF files.
The .7z format is a compressed format, like .zip or .tar.gz, which contains a collection of files. Global Mapper v16.1 and later can directly load .7z files. The archive will be extracted and any recognized files will be loaded automatically.
The new ACE2 Global Digital Elevation Model is available at 3", 30" and 5' spatial resolutions. In addition to the height matrix, 3 additional matrices provide information which identifies the source of the data, the estimated vertical accuracy of the data and the confidence in this accuracy assessment. Global Mapper v12.01 and later can load ACE2 format files.
The ASPRS LIDAR .LAS format is a binary format for storing 3D point data collected with LIDAR instrumentation. Global Mapper v6.07 and higher can directly import this format and view it either as a 3D surface or as an elevation-colored point cloud. Global Mapper v9.00 and higher can export loaded gridded elevation data and 3D point cloud data to new LIDAR LAS format files. With v10.02 and later, you can customize the names used for the LIDAR classes found within LAS files by creating a lidar_classes.txt file in the Global Mapper installation folder and adding a line for each class number to override with a format of lidar_class,class_name, like 3,"My Custom Class Name". In Global Mapper v11.02 or later if you load LAS files with format 2 or 3 that include color information, the specified colors will be used to render the Lidar points if they are loaded as a point cloud rather than the default elevation-based rendering of the point cloud. Global Mapper v13.01 and later can load data conforming to the LAS 1.4 specification.
ASTER is an imaging instrument that is flying on the TERRA satellite launched in December 1999 as part of NASA's Earth Observing System (EOS). ASTER represents a revolution in the remote sensing community because of the availability of its imagery and its superior resolution. ASTER resolution ranges from 15m to 90m, depending on the wavelength. The quality of the ASTER DEM data is excellent, equivalent in resolution to USGS 30m SDTS DEM data and has coverage for a large portion of the Globe.
JPL is in the process of developing a high spatial resolution mean emissivity database from all available ASTER data ever acquired since launch of Terra in Dec. 2000 - termed the ASTER Global Emissivity Dataset (ASTER-GED). ASTER GED is currently completed for all major non-frozen land masses and has been released for download from the EROS-LPAAC. Validation over a global set of sites showed a close match in spectral shape with lab measured spectra, and average band error of ~1%. Global Mapper v17.03 and later can read this format, including the ASTER GDEM terrain, emissivity bands 10-14, temperature, and sample count.
The Arc/Info ASCII Grid format is an elevation grid exchange format used by Arc/Info.
The Arc/Info Binary Grid format is the format used by Arc/Info internally to store elevation grids.
The E00 format is the Arc/Info exchange format for groups of vector coverages.
The BAG (Bathymetry Attributed Grid) is a non-proprietary file format for storing and exchanging bathymetric data developed by the Open Navigation Surface Working Group. Global Mapper v11.00 and later can import this format.
Various types of imagery are often distributed in simple binary formats such as the BIL (binary interleaved), BSQ (binary sequential), BIP (binary interleaved pixel), and RAW (PCI Geomatics raw binary) formats. These files are usually accompanied by a header file of some kind (usually .hdr, .ers, or .aux) which describes the layout and formatting of the file. Global Mapper requires this header file in addition to the .bil, .bsq, .bip, or .raw data file in order to load the file.
The Binary Point File (BPF) Format was initially designed by the Johns Hopkins Applied Physics Laboratory (APL) to serve as a lightweight, quick, binary file format for the storage of unorganized point cloud data. The format replaced their standard ASCII text file point clouds, which required a significant amount of time for input/output. Global Mapper v18.1.0 and later can load BPF format files.
The BT (Binary Terrain) format is a simple terrain format developed by the folks at VTerrain.org to provide an easy way to store terrain information in a single file along with projection and positioning information. Global Mapper v6.04 and higher can directly import and export this format.
BigTIFF is an extension to the TIFF image format allowing files larger than 4GB in size. Global Mapper v10.00 and later can both import and export BigTIFF format files.
COLLADA is a royalty-free XML schema that enables digital asset exchange within the interactive 3D industry. COLLADA model files are commonly used by software like Google Earth to represent 3D models (these are typically model.dae files). Global Mapper v11.02 and later can directly load some of these files, but to load the textures and get a much better image you need Global Mapper v16.0 or later. Globl Mapper v16.2 and later can export new DAE files.
The CORTAD data set is provided in the standard HDF5 format. The CoRTAD contains a collection of sea surface temperature (SST) and related thermal stress metrics, developed specifically for coral reef ecosystem applications but relevant to other ecosystems as well. The CoRTAD contains global, approximately 4 km resolution SST data on a weekly time scale from 1982 through 2008 (Version 2). In addition to SST, it contains SST anomaly (SSTA, weekly SST minus weekly climatological SST), thermal stress anomaly (TSA, weekly SST minus the maximum weekly climatological SST), SSTA Degree Heating Week (SSTA_DHW, sum of previous 12 weeks when SSTA is greater than or equal to 1 degree C), SSTA Frequency (number of times over previous 52 weeks that SSTA is greater than or equal to 1 degree C), TSA DHW (TSA_DHW, also known as a Degree Heating Week, sum of previous 12 weeks when TSA is greater than or equal to 1 degree C),and TSA Frequency (number of times over previous 52 weeks that TSA is greater than or equal to 1 degree C). Global Mapper v13.01 and later can read this format.
The CPS-3 format is used by Shlumberger GeoFrame software to store grid files. Global Mapper v13.01 and later can import grids in this format.
Canada3D is a DEM produced by the Canadian Forestry Service, Ontario region. The DEM consists of an ordered array of ground elevations providing coverage of the entire Canadian landmass. It has been derived from the cells of the CDED at the 1:250 000 scale. Canada3D is available in two forms: grids regularly spaced at 30 or 300 arc-seconds. Canada3D 30 and 300 are recorded separately in ASCII text file format. The elevation values are expressed in meters with respect to mean sea level (MSL), in accordance with the North American Datum of 1983 (NAD83).
The CDED consists of an ordered array of ground elevations at regularly spaced intervals. It is based on National Topographic System (NTS) maps at the 1:250,000 scale. Nearly complete coverage of Canada is available. CDED data use the same physical format as USGS DEM data, and therefore can be displayed by Global Mapper.
The Carlson SurvCAD Grid file format is used by Carlson software products to store gridded elevation data. Global Mapper v12.00 and later can directly load these files. There is a new format used by the Carlson 2015 software. Global Mapper v16.1 and later can load that and the Carlson GSF geoid grid files.
The Cogent3D .imagery format is used by Localconnect and the GISRoam application on iOS devices to store imagery and terrain data. Global Mapper v14.0 and later can load this format.
The DHM format is a digital height model used by the Swiss government. Global Mapper v6.08 and higher can directly import this format.
In support of military applications, the National Imagery and Mapping Agency (NIMA) has developed standard digital datasets (Digital Terrain Elevation Data (DTED)) which is a uniform matrix of terrain elevation values which provides basic quantitative data for systems and applications that require terrain elevation, slope, and/or surface roughness information. All Global Mapper versions can import DTED format files and Global Mapper v9.00 and later can export loaded elevation data to DTED format files.
The Digital Bathymetric Data Base Variable resolution (DBDBV) is a digital bathymetric data base that provides ocean depths at various gridded resolutions. DBDBV was developed by NAVOCEANO to support the generation of bathymetric chart products, and to provide bathymetric data to be integrated with other geophysical and environmental parameters for ocean modeling. Grid resolutions available include 0.5, 1, 2, and 5 minutes of latitude/longitude (1 minute of latitude = 1 nautical mile or 1.852 km). For data coverage for each resolutions see Related URLs below. Global Mapper v13.01 and later can read this format.
The E57 file format is a compact, vendor-neutral format for storing point clouds, images, and metadata produced by 3D imaging systems, such as laser scanners. The file format is specified by the ASTM, an international standards organization, and it is documented in the ASTM E2807 standard. The E57 format was developed by the Data Interoperability sub-committee of the ASTM E57 Committee on 3D Imaging Systems. Global Mapper v15.0 and later with the optional add-on Lidar module can import E57 point cloud data.
The ERDAS Imagine Image format is the raster data format used with the ERDAS Imagine software product line. Typical imagery includes satellite data as well as land coverages. For multi-band images and grayscale images, Global Mapper will automatically apply a two-standard deviation contrast stretch in order to generate an aesthetically pleasing image with no intervention. If present, the first 3 bands will be used the generate the image, with band 1 being red, band 2 being green, and band 3 being blue.
The objective of the Soil Moisture CCI is to produce the most complete and most consistent global soil moisture data record based on active and passive microwave sensors. ESA CCI Soil Moisture data files are available in NetCDF format and can be loaded by Global Mapper v16.1 and later.
The zLas Lidar format is produced by Esri. Global Mapper v16.1.4 and later can directly load these files as Lidar point clouds.
The FAA INM (Integrated Noise Model) 3TX format is a simple text format used by INM software to store a 1x1 degree terrain grid with 3-arc-second spacing, such as SRTM data. Global Mapper v13.01 and later can load 3TX format files and export new 3TX format files.
GGMplus provides computerised gravity field maps at 0.002 deg (7.2 arc-seconds, ~220 m in latitude direction) resolution for all land areas of Earth within 60 geographic latitude, and an adjoining ~10 km marine zone along the coast lines, The five gravity field functionals provided are - Free-fall gravity accelerations - Gravity disturbances (radial derivatives of the disturbing potential) - North-South deflection of the vertical in Helmert definition - East-West deflection of the vertical in Helmert definition - Molodenski quasigeoid heights All gravity field functionals provided refer to the Earth's surface. The underlying Geodetic Reference System is GRS80. The zero- and first-degree harmonic coefficients in the synthesis were assumed to be zero. The functionals are provided in the zero-tide system. The short-scale component of every GGMplus computation point (without exception) is based on numerical integration of topographic mass-effects within a cap of 200 km radius.
The Global Land One-kilometer Base Elevation (GLOBE) digital elevation model is the most thoroughly designed, reviewed, and documented global digital elevation dataset to date. GLOBE comprises a global 30 arc-second latitude-longitude array, with land areas populated with integer elevation data. GLOBE is available on the World Wide Web, and on CD-ROM in a format convenient for image processing and raster geographic information systems (GIS). Full GLOBE documentation is available on the CD-ROM and Website. To load GLOBE data into Global Mapper, first download and uncompress the data files (if necessary). Name the large elevation data file with the .bin extension. Then download the GeoVu header for the tile that you just downloaded and place it in the same directory as the .bin file. Finally, use the File->Open menu item to load the .bin file.
The GSD format is used to store Swedish DEM data. Global Mapper v11.00 and later can import this format.
The generic sensor format (GSF) is a file format used for storing bathymetry data, such as that gathered by a multibeam echosounder. Global Mapper v18.1.0 and later can import this format.
The GXF format is an ASCII grid format for storing elevation data. This format is used by software like Geosoft's Oasis Montaj product. Global Mapper v5.08 and higher can directly import this format.
This is a digital format for the storage of gridded data. Though developed for bathymetric/topographic data, the format can handle virtually any type of gridded data. It is very utilitarian format and contains no documentation about the grids (such as information about references, methods and datums used, etc.). Rather GRD98 formatted files only contain grid-structure information followed by the grid cell data values. Global Mapper v8.00 and later can import GRD98 format data.
The Geosoft Grid format is a binary grid format for storing elevation data. This format is used by software like Geosoft's Oasis Montaj product. Global Mapper v6.05 and higher can directly import and export this format.
A newly constructed global elevation data base gridded at 2-minute (latitude-longitude) resolution. The ETOPO2 data set contains both land data from the Global Land One-kilometer Base Elevation (GLOBE) project as well as seafloor topography from various sources.
A global DEM with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer, varies with latitude). GTOPO30 was derived from several raster and vector sources of topographic information. These data were produced jointly by several national and international organizations. The physical format of these data is different than USGS DEM data. GTOPO30 files are very large; note file sizes before downloading.
Gravsoft grid files are used by the Gravsoft suite of tools to store gridded elevation data. Global Mapper v6.00 and later can export loaded elevation data to new Gravsoft Grid files and Global Mapper v10.00 and later can import data in the Gravsoft Grid format.
HF2 is a compressed heightfield format designed to replace uncompressed terrain formats such as HFF, TER and BT. In addition to smaller file sizes thanks to difference and gzip encoding, the HF2 format also includes an extended header section for storing additional metadata such as georeferencing coordinates, comments, and the like. Thus, HF2 was designed with extensibility in mind. HFZ files are just gzipped HF2 files. Global Mapper v9.01 and later can both import and export HF2/HFZ format files.
HRE data is intended for a wide variety of National Geospatial-Intelligence Agency (NGA) and National System for Geospatial Intelligence (NSG) partners and members, and customers external to the NSG, to access and exploit standardized data products. HRE data replaces the current non-standard High Resolution Terrain Elevation/Information (HRTE/HRTI) products and also replaces non-standard products referred to as DTED level 3 thru 6. This profile is not intended to replace standard DTED 0, 1 and 2 products which will continue to be supported by NGA. Global Mapper v12.01 and later can import HRE format files.
HTF is a format used primarily for storing sounding data. It is used by the Australian Hydrographic Service (AHS). HTF is now the preferred distribution format for AHS sounding data and will be used by all Hydrographic Surveying Force (HSF) Units to render digital sounding data to the AHS as well as to exchange data between HSF Units. Global Mapper v11.00 and later can import HTF formatted data.
The Hypack Matrix format is a grid format typically used for storing bathymetric data used in marine surveying. This format is used by software from Hypack, Inc. Global Mapper v6.07 and higher can directly import this format.
IGF DIS files are used to store terrain surfaces. Global Mapper v13.10 and later can load these files.
The Idrisi .rst file format is the raster data format used with Clark Labs' Idrisi software product line. Global Mapper v7.03 and later supports loading raster and gridded elevation data from Idrisi .rst files and also exporting any loaded raster and gridded elevation data to Idrisi .rst format files.
The goal of the IBCAO initiative is to develop a digital data base that contains all available bathymetric data north of 64 degrees North, for use by mapmakers, researchers, and others whose work requires a detailed and acurate knowledge of the depth and the shape of the Arctic seabed. Global Mapper supports the import of this data in the netCDF format. Import of the ASCII grid format is not yet supported.
JPEG2000 is a relatively new format for storing imagery in a very highly compressed yet high quality manner, similar to the ECW and MrSID formats. Global Mapper v6.00 and above can load files in this format and export new raster JPEG2000 files. Global Mapper v12.00 and later can also export elevation grid JPEG2000 files, which offers extremely high compression for your terrain data.
JPGIS is an XML format for storing gridded terrain data. This format is used by Japanese agencies.
The JDEM .mem/.lem file format is a file format used by the Japanese Geographical Survey Institute to provide gridded elevaion data. Global Mapper v7.04 and later supports loading gridded elevation data from JDEM .mem files. Global Mapper v11.00 and later supports loading Japanese DEMs in the LEM/CSV format. In 2013 the Japanese GSI switched to a XML-based format for their terrain data. Global Mapper v15.1 and later can read this format.
LASzip is a compression library that was developed by Martin Isenburg for compressing ASPRS LAS format data. LASzip is completely lossless. It compresses bulky LAS files into compact LAZ files that are only 10-20 percent of the original size, accurately preserving every single bit. For example, compressing and decompressing the LAS file lidar.las with laszip.exe as shown below results in lidar_copy.las that is bit-identical to lidar.las. However, the small size of lidar.laz makes it much easier to store, copy, transmit, or archive large amounts of LIDAR. Global Mapper v13.01 and later can import and export LAZ format files.
The Leica PTS file format is a text format used for storing Lidar point clouds. It stores the XYZ location of points along with an intensity value and RGB color. Global Mapper v15.1 and later can import PTS files.
The LizardTech MrSID MG4 format is a format which uses advanced compression techniques to achieve extremely high compression ratios when storing Lidar data sets. Global Mapper v11.00 and later can import MrSID MG4 format files.
MSI Planet files are used to provide spatial referencing for image and elevation grids. These are typically an index or index.txt file. Global Mapper has been able to use these for raw binary grids since before v9, but v14.0 and later can use the index file to position nearly any image, including BMP, PNG, etc.
The Micropath 3CD format is used by Micropath to store a 1x1 degree terrain grid with 3-arc-second spacing, such as SRTM data. Global Mapper v13.01 and later can load 3CD format files.
The Normalized Difference Vegetation Index (NDVI) data set is available on a 16 day basis for the six year period between 2001 and 2006. The product is derived from bands 1 and 2 of the MODerate-resolution Imaging Spectroradiometer on board NASA's Terra satellite. A time-series of NDVI observations can be used to examine the dynamics of the growing season or monitor phenomena such as droughts.
NMGF is a standard file format used to store sets of georeferenced data points. These data sets, also know as grids, represent measurable quantities that vary with geographic location. Examples include predicted noise levels around an airport, monthly records of rainfall across a state, and water temperature measurements in a lake. Global Mapper v13.00 and later can load NMGF format files.
A collection of public domain Digital terrain models (DTM) from the NOAA National Geophysical Data Center. This collection includes an improved 5-minute DTM of land and ocean values for the entire world.
The NOAA/NGS Geoid Model format is used to store a grid of geoid offsets for performing geoid/vertical datum transformations. Global Mapper v13.00 and later can load NMGF format files.
The NTF (National Transfer Format) grid file format is used primarily by the UK Ordnance Survey to store gridded elevation data (i.e. DEMs) as well as vector data. Global Mapper v7.02 and above supports loading gridded elevation data from NTF files. Global Mapper v8.01 and above also supports loading vector contour data from NTF files.
The OTF format is used to store terrain data and vector features. It is commonly used in war fighter applications like WarSim. Global Mapper v14.1 and later can read OTF data sets with the purchase of an extra feature extension to Global Mapper.
The PDS (Vicar) format is a binary grid format commonly used by NASA for storing planetary data. Global Mapper v10.01 and later can import data from PDS (Vicar) files.
The PLS-CADD file format is a file format used by the PLS-CADD application by Power Line Systems to store both vector and gridded elevation data. Support for exporting loaded data to this format is available in Global Mapper v6.00 and above. Automatic support for loading data in this format is provided via Global Mapper v9.02 and above.
The PLY (Standford Polygon Library) format is a 3D model format. Global Mapper v16.0 and later can load and dislay these. Global Mapper v16.2 and later can export new PLY files. Global Mapper v17.0 and later can load Lidar point clouds from PLY files.
The NOAA National Oceanographic Data Center (NODC) is pleased to release the AVHRR Pathfinder Version 5.2 (PFV52) sea surface temperature data set. This data is available in NetCDF/HDF5 format. Global Mapper v13.01 and later can import data from this data set.
The QCT and QED file formats are used for very highly compressed scanned maps (QCD) and elevation data( QED) files, mainly on portable devices like PDAs and handheld GPS devices. Global Mapper v11.00 and later can read both QCD and QED format files.
The RDTED format contains DTED terrain data re-gridded to match CADRG/CIB frame boundaries for easy use with that data. The data is in the RPF (Raster Product Format) format with 16-bit elevation samples in meters up to a resolution of about 30 meters per sample. Global Mapper v16.0 and later can load RDTED files.
The Rockworks XML Grid (.RwGrd) files are XML-based grid files produced by some Rockworks software. Global Mapper v16.1 and later can directly load these files as elevation grid files.
The Global SPEI database, SPEIbase, offers long-time, robust information about drought conditions at the global scale, with a 0.5 degrees spatial resolution and a monthly time resolution. It has a multi-scale character, providing SPEI time-scales between 1 and 48 months. Currently it covers the period between January 1901 and December 2013. This data is available in NetCDF/HDF5 format. Global Mapper v17.0.0 and later can import data from this data set.
The Shuttle Radar Topography Mission (SRTM) data products result from a collaborative mission by the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA), the German space agency (DLR) and Italian space agency (ASI), to generate a near-global digital elevation model (DEM) of the Earth using radar interferometry. The SRTM-1 (1 arc-second) and SRTM-3 (3 arc-second) digital elevation models are being developed from the SRTM C-band radar observations for selected regions to satisfy the needs of NASA related projects and to speed the evaluation of acquisition and processing and applications algorithms. To load the SRTM-30 data available from the SRTM FTP Site below, you just need to download the *.dem.zip and open it directly into Global Mapper.
STL is a file format native to the stereolithography CAD software created by 3D Systems. This file format is supported by many other software packages; it is widely used for rapid prototyping and computer-aided manufacturing. STL files describe only the surface geometry of a three dimensional object without any representation of color, texture or other common CAD model attributes. All versions of Global Mapper can export loaded terrain grids to STL format files. Global Mapper v14.0 and later can export binary STL format files. Global Mapper v16.0 and later can import STL files. Globl Mapper v16.2 and later can export 3D models to STL files.
Surfer Grid Format files are used to store a grid of elevation data. This format is supported by several software packages, with Golden Software's Surfer package being the most prominent. Global Mapper support both the import and export of this format.
The Tropical Rainfall Measuring Mission (TRMM) is a joint mission between NASA and the Japan Aerospace Exploration Agency (JAXA) designed to monitor and study tropical rainfall. Global Mapper v13.10 and later can import TRMM HDF5-format data files.
The TerraScan LIDAR format is a binary format for storing 3D point data collected with LIDAR instrumentation. Global Mapper v7.02 and higher can directly import this format and view it either as a 3D surface or as an elevation-colored point cloud.
Global Mapper is able to export loaded elevation grid data to Terragen terrain files. These files can be used with the Terragen software package to create beatifully rendered 3D landscapes.
Elevations in a regular grid, derived from USGS topographic map contours or directly from aerial photography.
Elevation data derived directly from USGS native format DEMs. This is an experimental format and is not available for sale. GeoTIFF DEMs are implemented as 16-bit TIFF images to preserve absolute elevation values. 16-bit data, while allowed by the TIFF 6.0 standard, is not widely implemented in TIFF viewers, so these files may or may not be viewable in other software.
Elevation data derived directly from USGS native format DEMs. Spatial content is equivalent to DEM, but physical format and metadata content are more robust. 7.5-minute data (1:24,000 & 1:25,000 scale) and 1:250,000 scale are available in SDTS format. Native format data continue to be produced and sold.
The USGS National Elevation Dataset (NED) has been developed by merging the highest-resolution, best-quality elevation data available across the United States into a seamless raster format. NED is the result of the maturation of the USGS effort to provide 1:24,000-scale DEM data for the conterminous US and 1:63,360-scale DEM data for Alaska. NED data is available in BIL, float/grid, and ArcGrid formats.
The USGS standard grid is a binary file consisting of a header record followed by one record for each row of data. This is a very old format dating to the early 1970s. These files are the output of the USGS A2POS application. Global Mapper v18.2.0 and later can import these files.
VIIRS, a scanning radiometer, collects visible and infrared imagery and radiometric measurements of the land, atmosphere, cryosphere, and oceans. It extends and improves upon a series of measurements initiated by the Advanced Very High Resolution Radiometer (AVHRR) and the Moderate Resolution Imaging Spectroradiometer (MODIS). VIIRS data is used to measure cloud and aerosol properties, ocean color, sea and land surface temperature, ice motion and temperature, fires, and Earth's albedo. Climatologists use VIIRS data to improve our understanding of global climate change. Global Mapper v13.2 and later can load HDF5 files with VIIRS data.
The Vertical Mapper application stores elevation data in GRD files and clutter files in GRC files. Global Mapper v11.00 and later can import GRD and GRC files and export new Vertical Mapper GRD format files. Global Mapper v16.0 and later can export GRC (clutter) files.
The Vulcan3D Triangulation file format is used by the Maptek Vulcan application for working with triangulated terrain surfaces. Vulcan3D files can be imported to and exported from Global Mapper v9.03 and above.
The WindSim GWS format is used by WindSim software products for storing gridded height and roughness data. Global Mapper v12.01 and later can load GWS format files. When you load GWS files you can choose to import either the elevation grid or roughness grid data. If you choose to import the roughness data then it will be imported as both a grid and area features for each roughness value that you could then easily export to another vector roughness format, like WaSP .map files.
The ZFS Lidar format is produced by Z+F (Zoller+Frohlich) laser scan devices. Global Mapper v16.1 and later can directly load these files as Lidar point clouds.
Zmap Plus grid files are used by Geographix applications such as IsoMap to store gridded elevation data. Global Mapper can both import and export data in this format in v6.00 and higher.