![]() Produced using the ER Mapper image processing software.ĭata file-usually same as header file without the *.ers extension but could be any and is defined in the header file. Single file-various file extensions *.dt0, *.dt1, *.dt2Īll possible file extensions are available by default (*.dt0, *.dt1, *.dt2).ĮR Mapper's Enhanced Compressed Wavelet (ECW) format is able compress extremely large images at high compression ratios, while still providing fast data access and high visual quality.Ī proprietary raster format from ER Mapper. Both are based on the WGS 1984 datum.ĭigital Terrain Elevation Data (DTED) Level 0, 1, and 2Ī simple, regularly spaced grid of elevation points, base on 1 degree latitude and longitude extents. USRP data is referenced to UTM or UPS coordinate systems. ASRP data is transformed into the ARC system and divides the earth's surface into latitudinal zones. Thus, they are similar to digital orthophoto quads and have similar applications, such as serving as a base or backdrop for other data or as a simple map.ĭigital Geographic Information Exchange Standard (DIGEST)Īrc Standard Raster Product (ASRP), UTM/UPS Standard Raster Product (USRP)ĭIGEST datasets are digital replicas of graphic products designed for seamless worldwide coverage. Panchromatic (grayscale) images that have been georeferenced and corrected for distortion due to topographic relief distributed by NGA. CADRG achieves a nominal compression ratio of 55:1.Ĭhoose to search all files or add your file extensions to ArcCatalog. The data consists of raster images and other graphics generated by scanning source documents. CADRG is geographically referenced using the ARC system in which the globe is divided into 18 latitudinal bands, or zones. Multiple files-extension *.bsb, *.cap, and *.kapĬompressed ARC Digitized Raster Graphics (CADRG)ĭistributed on CD-ROM by NGA. This is a compressed raster format used in the distribution of raster nautical charts by MapTech and NOAA. They are usually used to store pictures or clip art that can be moved between different applications on Windows platforms. By creating an ASCII description file that describes the layout of the image data, black-and-white, grayscale, pseudo color, and multiband image data can be displayed without translation into a proprietary format.ĭata file-extension *.bil, *.bip, or *.bsqīitmap (BMP), device-independent bitmap (DIB) format, or Microsoft Windows bitmapīMP files are Windows bitmap images. This format provides a method for reading in and displaying decompressed, BIL, BIP, and BSQ image data. The ArcInfo ASCII Grid format is an ArcInfo Grid exchange file.īand interleaved by line (ESRI BIL), band interleaved by pixel (ESRI BIP), band sequential (ESRI BSQ) Raster data stored within an ArcSDE database. ![]() ADRG is geographically referenced using the equal arc-second raster chart/map (ARC) system in which the globe is divided into 18 latitudinal bands or zones. Learn how to add file extensions to ArcCatalog or search all files Learn more about the technical specifications for raster formats Formatĭistributed on CD-ROM by the National Geospatial-Intelligence Agency (NGA). The following table gives a description of the supported raster formats and their extensions and identifies if they are read-only or if they can also be written by ArcGIS. The geodatabase is the native data model in ArcGIS for storing geographic information, including raster datasets and raster catalogs however, there are many file formats you can work with that are maintained outside a geodatabase. Technical specifications for raster dataset formats.
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