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2. DIVA-GIS - Wikipedia

   en.wikipedia.org/wiki/DIVA-GIS

   DIVA-GIS is a free geographic information system software program used for the analysis of geographic data, especially species occurrence data. The software was first designed for application to the study of the distribution of plants, especially crop wild relatives such as wild potatoes .

3. 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 ...

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

   en.wikipedia.org/.../GIS_sources_and_palettes

   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. uDig - Wikipedia

   en.wikipedia.org/wiki/UDig

   It supports shapefiles, PostGIS, WMS, and many other data sources natively. [2] uDig is commonly used as a framework for building other GIS platforms and applications. Such applications include DIVA-GIS and DEWS – Distant Early Warning System for tsunamis. [3]

6. 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]

7. Comparison of GIS vector file formats - Wikipedia

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

   Shapefile – open, hybrid vector data format using SHP, SHX and DBF files (by ESRI) Spatial Data File – high-performance geodatabase format, native to MapGuide (by Autodesk ) TIGER – Topologically Integrated Geographic Encoding and Referencing

8. GIS file format - Wikipedia

   en.wikipedia.org/wiki/GIS_file_format

   A GIS file format is a standard for encoding geographical information into a computer file, as a specialized type of file format for use in geographic information systems (GIS) and other geospatial applications. Since the 1970s, dozens of formats have been created based on various data models for various purposes

9. 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.