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  2. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    Online collection of all digital USGS 1:24K scale topographic maps (as well as various other GIS data) covering the United States, available as a free download. NPScape United States Department of the Interior National Park Service NPScape is a landscape dynamics monitoring project that provides landscape-level data, tools, and evaluations for ...

  3. GADM - Wikipedia

    en.wikipedia.org/wiki/GADM

    [2] Although it is a public database, GADM has a higher spatial resolution than other free databases, [3] and also higher than commercial software such as ArcGIS. [4] Those sources are commonly use to complete data analysis with data visualisation such as data plots , choropleth map , etc. [ 5 ] [ 6 ]

  4. Shapefile - Wikipedia

    en.wikipedia.org/wiki/Shapefile

    The shapefile format is a geospatial vector data format for geographic information system (GIS) software.It is developed and regulated by Esri as a mostly open specification for data interoperability among Esri and other GIS software products. [1]

  5. List of national coordinate reference systems - Wikipedia

    en.wikipedia.org/wiki/List_of_national...

    The list of national coordinate reference systems (CRS) lists map projections officially recommended for existing countries.Given that every projection gives deformations, each country's needs are different in order to reduce these distortions.

  6. WorldMap - Wikipedia

    en.wikipedia.org/wiki/AfricaMap

    WorldMap is a web platform for creating, displaying, analyzing, and searching spatial data and other data forms across multiple disciplines.. WorldMap is a collaboratively edited, multilingual, free internet mapping electronic media site open to everyone that is housed at the Center for Geographic Analysis at Harvard University and accessible at the WorldMap website makes it possible for those ...

  7. Marine ecoregion - Wikipedia

    en.wikipedia.org/wiki/Marine_ecoregion

    The digital ecoregions layer is available for download as an ArcGIS Shapefile. [2] Subdivisions Ecoregions. The ... Temperate Southern Africa; Temperate Australasia;

  8. SAGA GIS - Wikipedia

    en.wikipedia.org/wiki/SAGA_GIS

    System for Automated Geoscientific Analyses (SAGA GIS) is a geographic information system (GIS) computer program, used to edit spatial data.It is free and open-source software, developed originally by a small team at the Department of Physical Geography, University of Göttingen, Germany, and is now being maintained and extended by an international developer community.

  9. TerraLib - Wikipedia

    en.wikipedia.org/wiki/TerraLib

    TerraView is a GIS application built on the TerraLib GIS library. TerraView handles vector data (polygons, lines, points) and raster data (grids and images), both of them stored in a relational or geo-relational database, including ACCESS, PostgreSQL, MySQL and Oracle Spatial. TerraView has a visualization interface that allows attribute and ...