Landfræðilegt upplýsingakerfi
GIS stendur fyrir „geographic information system“ eða landfræðileg upplýsingakerfi. Þessi kerfi eru notuð við að greina og birta landfræðileg gögn.
Tenglar[breyta | breyta frumkóða]
Frjáls hugbúnaðir í GIS-kerfum[breyta | breyta frumkóða]
Önnur GIS-kerfi[breyta | breyta frumkóða]
GIS-gagnasöfn á netinu[breyta | breyta frumkóða]
- Federal Geospatial Data Clearinghouse Search Engine Geymt 2011-12-09 í Wayback Machine
- GIS Data Depot Geymt 2009-02-27 í Wayback Machine
- The Geography Network (ESRI's data clearinghouse and map services) Geymt 2009-04-03 í Wayback Machine
- Geospatial One Stop - U.S., Federal, State & Local GIS Data Geymt 2007-06-10 í Wayback Machine
- National Atlas of the United States - US biology, geology, demography, environmental, water and much more. Geymt 2009-03-31 í Wayback Machine
- The National Map - Access to high-quality, geospatial data from the USGS
- Starting the Hunt: Guide To Mostly On-line And Mostly Free U.S. Geospatial Data
- National Historical Geographic Information System - aggreagate census data with boundary files