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Earth characteristics
The measurable, definable properties and features of the earth.
Subtopics:
Atmospheric properties (21 items)
Earth material properties (8 items)
Earth structure (13 items)
Geologic history (42 items)
Geologic structure (36 items)
Gravitational field (earth) (12 items)
Land surface characteristics (52 items)
Magnetic field (earth) (18 items)
Ocean characteristics (66 items)
Rocks and deposits (157 items)
Snow and ice cover (19 items)
Stratigraphic sections (26 items)
Topography (59 items)
Related topics:


Results 141 - 150 of 415 listed by similarity [list alphabetically]
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.
Deserts, geology and resources [More info]
Online edition of booklet describing desert geology and mineral resources.
Detection and measurement of land subsidence using Global Positioning System surveying and interferometric synthetic aperture radar, Coachella Valley, California, 1996-2005 [More info]
Detailed measurements of elevation help to understand the extent and severity of subsidence. Study asks if subsidence indicates the aquifer system is compacting temporarily or permanently, and are the changes human-induced or tectonic.
Devils Postpile National Park geologic story [More info]
Site has links to Devils Postpile's geologic history, rocks and minerals, geologic time, geologic maps.
Diatoms: applications [More info]
Use of diatoms in biostratigraphy, coastal and estuarine studies, paleoceanology, paleoliminology, earthquake studies, environmental quality and forensic studies. Includes listing of USGS diatom projects and links to other diatom websites.
Digital library: USGS Monterey Bay science [More info]
Online catalog of scientific reports and data around and about Monterey Bay, California, indexed by author, agency, project, location, feature type, and topic
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.
Dinosaurs, fact and fiction [More info]
Online booklet with answers to frequently asked questions about dinosaurs.
PDF Discontinuous nature of kriging digital terrain models [More info]
Research exploring the mathematical properties of kriging, a widely-used surface interpolation method. The continuity properties of kriging digital terrain models over a wide range of terrain types helps hydrologists assess the usefulness of kriging for D
PDF Divisions of Geologic Time - Major Chronostratigraphic and Geochronologic Units [More info]
A summary of the divisions of geologic time intended to provide a consistent time scale to be used in communicating ages of geologic units in the United States.
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