The GIS Guide to Public Domain Data gives users of geographic information systems (GIS) relevant information about the sources and quality of available public domain spatial data. Readers will understand how to find, evaluate, and analyze data to solve location-based problems. This guide covers practical issues such as copyrights, cloud computing, online data portals, volunteered geographic information, and international data. Supplementary exercises are available online to help put the concepts into practice. Students, researchers, and professionals will find The GIS Guide to Public Domain Data a useful desk companion to help them navigate the world of spatial data in the public domain.
Natural Earth is a public domain map dataset available at 1:10 million, 1:50 million, and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software.
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. The geographic information available from The National Map includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures, and land cover.
StreamStats is an assortment of Geographic Information Systems (GIS) analytical tools that are useful for water-resources planning and management, and for engineering and design purposes. The map-based user interface can be used to delineate drainage areas for user-selected sites on streams, and then get basin characteristics and estimates of flow statistics for the selected sites anywhere this functionality is available.
The purpose of this Data Catalog is to provide the public with access to the digital geographic data produced by the State of Maine. Users may use this site to download geographic data and the associated metadata.
The Digital Atlas is a teaching tool available to all members of the University of Southern Maine community. It is built on data from MEGIS and others. N.B: The digital atlas is installed on the C:\ drive of all student computers running the Windows operating system.
The Global Land Cover Facility (GLCF) provides earth science data and products to help everyone to better understand global environmental systems. In particular, the GLCF develops and distributes remotely sensed satellite data and products that explain land cover from the local to global scales.
How to conduct accurate analysis using GIS software tools. Three volumes: v. 1. Geographic patterns & relationships; v. 2. Spatial measurements & statistics; and v.3 Modeling suitability, movement, and interaction.