Sustaining Seven Billion People. With seven billion people now living on Earth, the ever growing demand is putting unprecedented pressure on global resources—especially forests, water, and food. How can Earth’s resources be managed best to support so many people? One key is tracking the sum of what is available, and perhaps nothing is better suited to that task than satellites. These two images show food production on both a global scale and a landscape scale. Made with data from the Moderate Resolution Imaging Spectroradiometer (MODIS), the top image shows where crops are grown throughout the world.
Green areas are cropland, while tan areas are other types of land cover. In the last 40 years, cropland has increased by 70 percent to feed a growing population. The lower image provides a landscape scale view of farming. Measurements from the Landsat satellite also make it possible to tell how much water the crops consume in an arid environment. Instrument(s): Landsat 7 - ETM+
North American Environmental Atlas: North American Power Plant Air Emissions, 2005. Welcome to SABINS | SABINS. Data.gov. USGS TNM 2.0 Viewer. CCE - Atlas environnemental de l'Amérique du Nord: Fichiers de données. U.S. - Mexico Border Environmental Health Initiative. The map is a seamless, binational 1:5,000,000-scale geologic map of the entire U.S. -Mexico border region, and is a clipped-out portion of The Geologic Map of North America, published by the Geological Society of America (GSA)(Reed and others, 2005-see citation below). The map is a geo-referenced image that can be loaded on the U.S. -Mexico Border Environmental Health ArcIMS website as a backdrop for analytical comparison with other geographic, biologic, or hydrologic GIS datasets.
In addition to the geology, the map includes selected major cities, rivers, and state and country boundaries. For further information on map unit symbols, and other map symbols, including definition of structures such as faults, folds, dikes and sills, and seafloor symbols, see the source map cited below. The Geologic map of North America is available for purchase from the Geological Society of America at < Citation: New York City. < back up to USA New York State GIS Clearinghouse some layers are free available for the whole state: DRG, NLCD there are beautiful color Orthoimagery for most the western and central counties (but not NYC), and false-color (CIR) image for nearly the whole state, excepting parts of NYC others layers are expensive, but free to member of the NY State GIS Data Sharing Cooperative 1:100k Hydro, public roads in ArcInfo format from May 2002 to November 2003, a lot of the data was put offline due to paranoia, including NYC DRGs, but it appears that it's currently (nearly) all back up City of Ithaca Attractive for visualization because of amazingly complete and public GIS data for the whole city: includes parcel boundaries, building footprints, road widths and curbs, sidewalks, driveways, even every individual planted tree For years it was at , but as of 2011 that is gone and the data is probably somewhere inside CUGIR: Cornell University Geospatial Data Information Repository (CUGIR) State Plane Base Map.
The National Map Seamless Server Viewer. Welcome to NHGIS — National Historical Geographic Information System. SGIS - Orthoimagery - Web Map Service. GIS web services allow users to connect to data sources through the internet rather than downloading and storing copies of the data on their own systems. The NYS ITS GIS Program Office is pleased to provide access to statewide orthoimagery coverage through web services. Users are encouraged to use the services to display orthoimagery in their desktop GIS and web applications.
All available NY Statewide Digital Orthoimagery Program (NYSDOP) data (2000-2012) and the USGS National Aerial Photography Program (1994-1999) data are available through web services hosted by the NYS ITS GIS Program Office. Information on connecting is available at gis.ny.gov/gateway/mg/webserv/webserv.html. In partnership with USGS, NYS ITS GIS Program Office also has made many years of the NYSDOP imagery available through services hosted by USGS. Information on connecting to these services is available at gis.ny.gov/gateway/mg/webserv/eros.html. Raw Data Download. American FactFinder.