Scope and Subject Category Guide logo

Subject Category Browse

Category Scope

46 Geophysics

Includes earth structure and dynamics, aeronomy; upper and lower atmosphere studies; ionospheric and magnetospheric physics; and geomagnetism. For related information see 47 Meteorology and Climatology; and 93 Space Radiation.


Geophysics – The physics of the Earth and its environment, i.e., its solid earth, air, waters and (by extension) space. NASA Thesaurus, Washington, DC: National Aeronautics and Space Administration. Dictionary of Technical Terms for Aerospace Use. Wm. H. Allen, ed., 1965. NASA SP-7.

NASA Interest

Exhaustive Interest : Physics of the Earth, including its atmosphere and its hydrosphere, as revealed by aircraft, satellite, and manned spacecraft observations; observation of natural phenomena; upper atmosphere and ionosphere; geomagnetism and Earth gravitational field; paleontology related to development of life; geological investigations having potential relevance to ground truth for remote sensing or Earth evolution and structure.

Selective Interest : Geology of direct interest to aerospace activities.

Negative Interest : Surface surveys; surface or seismic prospecting; assaying processes or records.


Input Subjects of Specific Interest

  • aeronomy
  • aerosols (atmospheric physics )
  • air glow
  • atmospheric boundary layers (atmospheric physics)
  • atmospheric circulation (atmospheric physics)
  • atmospheric density
  • atmospheric electricity
  • atmospheric optics
  • atmospheric physics
  • atmospheric radiation
  • atmospheric scattering
  • atmospheric structure
  • atmospheric studies (physical processes)
  • atmospherics
  • aurora
  • biosphere (physical processes)
  • continental drift
  • Earth magnetic field
  • Earth origins
  • Earth structure
  • Earth-reflected radiation
  • fault detection (geological)
  • general circulation models (atmosphere)
  • geochemistry
  • geodesy (physics)
  • geological surveys
  • geology (Earth structure)
  • geomagnetism
  • geomorphology
  • geophysical sensors (applications)
  • geophysics
  • glaciology
  • gravitational anomalies (terrestrial)
  • gravitational theory (terrestrial)
  • gravitational waves (terrestrial)
  • greenhouse effect (atmospheric physics)
  • hydrosphere studies
  • infrared spectrometry (atmosphere)
  • ionosphere (Earth)
  • ionospheric electron density
  • ionospheric physics
  • ionospheric plasmas
  • ionospheric scintillation
  • lithology
  • lower atmosphere studies
  • magnetism (terrestrial)
  • magnetosphere (Earth)
  • noctilucent clouds
  • ozone depletion (atmospheric physics)
  • plate tectonics
  • rocket/balloon geophysical studies
  • seismology
  • soil mechanics
  • soil sampling
  • solar-atmosphere interactions
  • space geodesy
  • space weather
  • stratosphere
  • stratospheric circulation
  • tectonics
  • upper atmosphere studies
  • very long baseline interferometry (geophysics applications)
  • volcanoes
  • whistlers (upper atmosphere)