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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. Wikipedia : Graphics Lab/Resources/QGIS/Get ready

   en.wikipedia.org/.../Resources/QGIS/Get_ready

   QGis (full name: Quantum GIS) is a GPL license, cross-platform (Windows, Linux, Mac), and rather friendly cartographic software application. It is a Geographic Information System (GIS) program you can use to create, view, and analyze maps.

4. QGIS - Wikipedia

   en.wikipedia.org/wiki/QGIS

   QGIS is a geographic information system (GIS) software that is free and open-source. [2] QGIS supports Windows, macOS, and Linux. [3] It supports viewing, editing, printing, and analysis of geospatial data in a range of data formats. Its name comes from an abbreviation of its previous name, Quantum GIS.

5. 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]

6. GIS file format - Wikipedia

   en.wikipedia.org/wiki/GIS_file_format

   An open format that has become one of the most common formats for data sharing. IMG – ERDAS IMAGINE image file format; JPEG2000 – Open-source raster format. A compressed format, allows both lossy and lossless compression. MrSID – Multi-Resolution Seamless Image Database (by Lizardtech). A compressed wavelet format, allows both lossy and ...

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. Geographic information system - Wikipedia

   en.wikipedia.org/wiki/Geographic_Information_System

   ] Other examples of GIS include Autodesk and MapInfo Professional and open-source programs such as QGIS, GRASS GIS, MapGuide, and Hadoop-GIS. [19] These and other desktop GIS applications include a full suite of capabilities for entering, managing, analyzing, and visualizing geographic data, and are designed to be used on their own.

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.