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Geography
Study of the earth's landforms, topography, and climate, the distribution of flora and fauna, and the distribution, culture, and activities of human populations.
Subtopics:
Cartography (63 items)
Paleogeography (1 items)
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Results 21 - 30 of 189 listed alphabetically [list by similarity]
PDF Datum shifts and digital map coordinate displays [More info]
Online GIS training course for users in GIS environments in resolving the differences in distances and coordinate readouts due to shifts in the 1927 and 1983 North American Datums when using Universal Transverse Mercator (UTM) grids.
PDF Decision-support systems for natural-hazards and land-management issues [More info]
Three mathematical models using information about the geographic distribution and character of land surface characteristics along with proposed modifications or plausible events to determine the likely costs and benefits of actions and events.
PDF Declassified Intelligence Satellite Photographs [More info]
Over 990,000 photos taken from 1959 through 1980 are available for use in studying land surface change. Especially useful because these were taken before Landsat was launched.
Development of a global slope dataset for estimation of landslide occurrence resulting from earthquakes [More info]
Technical description of methods used to generate global slope data from SRTM topography data
Digital Line Graphs (DLGs) [More info]
Description of Digital Line Graphs (DLG) with explanations of layers and feature types, scales, available products, media, prices, and links to search and order webpages.
Digital Orthophoto Quadrangles (DOQs) [More info]
Description of what Digital Orthophoto Quadrangles are and how to obtain them plus information on the DOQ program, points of contact, DOQ status graphic, examples of DOQs, and free data viewer software.
Digital shorelines for Boston Harbor [More info]
Modified version of paper by F.T. Manheim and A.G. McIntire, Civil Engineering Practice, Vol. 13, No. 1, pp. 35-48 (1998). A new shoreline file has been created for Boston Harbor by digitizing and combining the most recent charts.
PDF Drought Monitoring with VegDRI [More info]
The Vegetation Drought Response Index is a drought monitoring and mapping tool integrating satellite observations of vegetation and climate with land cover, soil characteristics, and other environmental factors.
Earth Resources Observation & Science (EROS) [More info]
Access to products archived at the EROS Data Center, Sioux Falls, SD, including aerial photography, remote sensing data, satellite imagery, maps, and elevation data with product search retrieval and ordering information.
Earth Resources Observation and Science (EROS) Center Popular Web Sites [More info]
List of links leading to remote-sensing, satellite imaging, and general mapping produced by this USGS science center.
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