GIS, GPS and Mapping Links
GIS Tips and Techniques
When mosaicking DEMs, sometimes gaps of "nodata" result. Here is a technique that I employed to address this: Mosaicked DEM Gap Removal.- My GIS and GPS Weblog - something new, trying my hand at setting up a blog.
GIS, GPS and Mapping Links
Quantum GIS (QGIS) an open sources GIS application that runs on Linux, Unix, Mac OSX, and Windows. QGIS supports vector, raster, and database formats.
The Norman B. Leventhal Map Center at the Boston Public Library
The Internet Archive - Only a few USGS quad maps are online, but the are worth the visit.
National Geospatial-Intelligence Agency Name Files (GNS) - Non-USA country gazetteer data sets for GIS
NH GRANIT Web Site
Site that provides access to New Hampshire's statewide Geographic Information System (GIS)
http://www.granit.sr.unh.edu/- Vermont Center for Geographic Information
- http://ortho.mit.edu/mitorthoserver/ - How to Build You Own Customized MITOrthoServer
ESRI ArcExplorer 9.2 (JAVA)
Free GIS Viewer software from ESRI.http://www.esri.com/software/arcexplorer/index.html- http://ortho.mit.edu/ - Tools to Facilitate Access to Digital Orthophotos
- http://ortho.mit.edu/mitorthoserver/
- Global Visualization Viewer - Orthorectified Landsat data for download
- Earth Explorer Viewer - Orthorectified Landsat data for download
- Vermont Center for Geographic Information
- Vermont Department of Environmental Conservation Maps, Mapping Programs and GIS Information
- Clark University Map Library Geography and GIS Links
- GIS User - Sponsored by Autodesk
- GIS monitor
- Ellis's GPS Website
- U.S. Fish & Wildlife Service - Pennsylvania Spatial Data Sets
- Pennsylvania Department of Transportation - Bureau of Planning & Research - Geographic Information Division
- Pennsylvania Spatial Data Access - The Pennsylvania Geospatial Data Clearinghouse
- Pennsylvania Mapping and Geographic Information Consortium
- Pennsylvania State University Libraries - Map Library - Online Digital Maps
- The Gateway to GeoTIFF Web Page
- Metadata Humane Society
- GeoConnections (formerly CEONet) - Canada's Geographic Information on the Internet. In both English and French.
- Digital Grove - offering practical information about digital cartography, Geographic Positioning Systems (GPS) and Geographic Information Systems (GIS). This website offers tools and techniques on map creation and introductory information for the curious.
- Global Mapper Software LLC - Olathe, Kansas-based software developer which designs, develops, and distributes the Global Mapper software package.
- http://www.doylesdartden.com/gis/howtousedrgs.htm
- OziExplorer
- GIS Manifold
- NOAA's Historical Map & Chart Project - nautical as well as terrestial maps. You will need LizardTech's MrSID Viewer for these.
- Mass GIS - the State of Massachusetts GIS Data Online
- Maptech's Mapserver
- Real-time Revolving 3-D Image of the Earth
- http://p.pellot.free.fr/gpsgb.htm
- Navigation and the Palm OS
- PalGar - Palm-based GPS Data Manager.
- Rhode Island USGenWeb Project - Maps - Many old maps of Rhode Island are online here, including D.G. Beers & Co. maps of 1870.
- New York State GIS Clearinghouse
- Sanborn Fire Insurance Maps
- Perry-Castañeda Library Map Collection
- Maps of United States National Parks and Monuments
- Maps of National Historic Sites, Memorials, Military Parks and Battlefields
- Historic USGS Maps of New England - hosted by the University of New Hampshire, Dimond Library. Although the maps are not geo-referenced, they are still useful.
- University of Rhode Island GIS Webpage - with links for the state GIS datasets and the MIT/URI digital orthophoto webserver. Very cool place to find GIS stuff of Rhode Island.
- Railroad Maps Collection of the U.S. Library of Congress - a large collection of hundreds of North American Railroad Maps, free for downloading. You will need to also download the MrSID Viewer (Mac/Win/Unix) from LizardTech. They have Photoshop plug-ins and create World Files for Geo Referencing. It appears that this website is not available on weekends.
- The National Imagery and Mapping Agency's Public Homepage
- Navtech GPS Supply
- GIS Starting the Hunt - A nice website with tons of links to current sources of GIS data, hosted by the University of Arkansas.
- NIMA's SRTM Kid's Page - The Shuttle Radar Topography Mission (SRTM) is sponsored by the National Imagery and Mapping Agency (NIMA), National Aeronautics and Space Administration (NASA), the German Aerospace Center (DLR, Deutsches Zentrum f½r Luftund Raumfahrt), and the Italian Space Agency (ASI). Launch: February 11, 2000, Landing: February 22, 2000, Mission Duration: 11 Days.
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