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Geospatial and Statistical Data Resources  

Last Updated: Nov 12, 2014 URL: http://guides.library.harvard.edu/gsd/gis Print Guide RSS UpdatesEmail Alerts

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Frequently Used Data Portals/ Gateway

                         

     Harvard Geospatial Library                                 MassGIS' Oliver                   USGS Earth Explorer

              Includes datasets and maps                                                     Freely available geospatial                      Freely available geospatial data
   licensed to Harvard students, faculty and staff                                    data covering Massachusetts                               of the United States
 
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Geospatial Data Resources for GSD Students

As with other information sources, we have to assess our datasets before we use them.  Here are some guidelines for critically assessing geospatial and numeric datasets:

  • Who created and compiled the data?
  • When were the data created?  Are they sufficiently current for your purposes?
  • In what format(s) are the data? What does that mean for your project?
  • How complete is the dataset?
  • Are there other datasets that include the information I am looking for?  Can I compare datasets to assess their quality?

What is GIS?

A geographic information system (GIS) is a computer-based tool for mapping and analyzing things that exist and events that happen on earth. GIS technology integrates common database operations such as query and statistical analysis with the unique visualization and geographic analysis benefits offered by maps.” ESRI

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