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  2. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    Government ArcGIS server addresses: Curated list of 3,500+ ArcGIS server addresses from federal to local. Updated once per week. Bad links fixed or flagged. NOAA Big Data Project: NOAA generates tens of terabytes of data a day from satellites, radars, ships, weather models, and other sources. While these data are publicly available, it is ...

  3. Shapefile - Wikipedia

    en.wikipedia.org/wiki/Shapefile

    Shapefile file extensions – Esri Webhelp docs for ArcGIS 10.0 (2010) Esri – Understanding Topology and Shapefiles; shapelib.maptools.org – Free c library for reading/writing shapefiles; Python Shapefile Library – Open Source (MIT License) Python library for reading/writing shapefiles

  4. Wikipedia : Graphics Lab/Resources/GIS sources and palettes

    en.wikipedia.org/wiki/Wikipedia:Graphics_Lab/...

    Shapefiles : are a data exchange format created by ESRI and one of the most widely used GIS/geodata formats. One "shapefile" usually include four different files : .shp, .shx, .dbf, .prj. First three files must all be present in order to use the data. Each shapefile can hold only one geometry type.

  5. Global Administrative Unit Layers - Wikipedia

    en.wikipedia.org/wiki/Global_Administrative_Unit...

    The GAUL always maintains global geographic layers (in shapefile format) with a unified coding system at the levels of country, first administrative (e.g. regions), and second administrative (e.g. districts). In addition, when data is available, it provides layers on a country-by-country basis down to third, fourth and lower levels.

  6. GDAL - Wikipedia

    en.wikipedia.org/wiki/GDAL

    The Geospatial Data Abstraction Library (GDAL) is a computer software library for reading and writing raster and vector geospatial data formats (e.g. shapefile), and is released under the permissive X/MIT style free software license by the Open Source Geospatial Foundation.

  7. GIS file format - Wikipedia

    en.wikipedia.org/wiki/GIS_file_format

    The most notable example of this was the publication of the Esri Shapefile format, [5] which by the late 1990s had become the most popular de facto standard for data sharing by the entire geospatial industry. [6]

  8. Comparison of GIS vector file formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_GIS_vector...

    Legacy ArcGIS Workstation / ArcInfo format with reduced support in ArcGIS Desktop lineup. (by ESRI) Geography Markup Language (GML) – XML based open standard for GIS data exchange (by Open Geospatial Consortium) Simple Features – specification for vector data storage (by Open Geospatial Consortium) that can be used in a GML container

  9. Marine ecoregion - Wikipedia

    en.wikipedia.org/wiki/Marine_ecoregion

    The global classification system Marine Ecoregions of the World—MEOW ... The digital ecoregions layer is available for download as an ArcGIS Shapefile. [2 ...