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Open Source GIS Software
These open source GIS Systems may be useful to your GIS Research.
Free GIS software used for analysis and management of geospatial data, graphics and map production, image processing, spatial modeling and visualization.
SPRING Georeferenced Information Processing System
A remote sensing image processing system with an object-oriented data model from Brazil's National Institute for Space Research.
User-friendly open source GIS software from the Open Source Geospatial Foundation (OSGeo).
Geographical Information Systems (GIS) and Remote Sensing Resources
This is a hand-selected list of GIS Resources. If you require additional research assistance, please contact the Cheng Reference Desk at firstname.lastname@example.org.
Interactive Maps from the U.S. Census Bureau
Work with interactive data mapping tools from across the Census Bureau.
What is GIS?
What is GIS? is a portal to GIS information on the Web and was created by ESRI (Environmental Systems Research Institute), a GIS software developer. The site is intended to educate anyone interested in geographic technology on the value that technology brings to their day-to-day activities.
The National Map (National Geospatial Program)
As one of the cornerstones of the U.S. Geological Survey's (USGS) National Geospatial Program, The National Map is a collaborative effort among the USGS and other Federal, State, and local partners to improve and deliver topographic information for the Nation. It has many uses ranging from recreation to scientific analysis to emergency response.
New Jersey Geographic Information Network (NJGIN)
NJGIN is maintained by the New Jersey Office of Information Technology, Office of GIS. NJGIN features a searchable geospatial data catalog and provides information about New Jersey's GIS community.
Open source geographic data imaging engine that allows users to create geographic image maps.
USGS Global Visualization Viewer
Make your own maps with a variety of layers and search the U.S. Geological Survey's satellite and aerial data.
The United States Geological Survey's (USGS) Earth Explorer data portal is a one stop shop for obtaining geo-spatial datasets from its extensive collections. Users can navigate via interactive map or text search to obtain Landsat satellite imagery, Radar data, UAS data, digital line graphs, digital elevation model data, aerial photos, Sentinel satellite data, some commercial satellite imagery including IKONOS and OrbView3, land cover data, digital map data from the National Map, and many other datasets. Users can search by exact location via the interactive map or input specific coordinates to view what data types are available.