USGS: Science Topics: geography

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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 (64 items)
Paleogeography (1 items)

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Results 1 - 10 of 159 listed alphabetically [list by similarity]

A New Method for Mapping Population Distribution [More info]: With the addition of elevation and land use and land cover data, we can show population density on a map much more effectively than if we simply color census areas. The resulting maps should allow better planning, especially in highly developed areas.
A rapid method for creating qualitative images indicative of thick oil emulsion on the ocean's surface from imaging spectrometer data [More info]: Technical details explaining how remotely sensed visible and infrared data can help recognize the extent of oil spills.
Advanced Remote Sensing Research [More info]: New and experimental methods of analyzing geospatial imagery, including detailed spectral analysis of land surface materials, historical image analysis, and long wave infrared image analysis.
Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Overview [More info]: General characteristics and spatial resolution of imagery products available from this type of sensor.
Advanced Very High Resolution Radiometer (AVHRR) [More info]: Coverage, characteristics, and availability of AVHRR data from a broad-band scanner sensing in the visible, near-infrared, and thermal infrared portions of the electromagnetic spectrum.
Advanced Very High Resolution Radiometer (AVHRR) sensor characteristics [More info]: Description of datasets of AVHRR data available from the EROS Data Center in Sioux Falls, SD in three formats: High Resolution Picture Transmission (HRPT), Local Area Coverage (LAC), and Global Area Coverage (GAC).
Aircraft scanners [More info]: Technical information on the Aircraft Scanners data set at the USGS EROS Data Center containing digital imagery acquired from several multispectral scanners collected over conterminous United States, Alaska, and NASA aircraft.
Alaska Geospatial Data Clearinghouse [More info]: Clearinghouse for the description and availability of multiple geospatial datasets relating to Alaska from many federal, state and local cooperating agencies under the coordination of the Alaska Geographic Data Committee.
An Overview of the GIS Weasel [More info]: Software system designed to aid users in preparing spatial information as input to lumped and distributed parameter environmental simulation models.
An image map of the Content Standard for Digital Geospatial Metadata [More info]: Graphical representation of the Content Standard for Digital Geospatial Metadata Version 2 - 1998 (FGDC-STD-001 June 1998) to permit easier location of relevant information while writing metadata.

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