Geophysics

geophysics are simultaneous a subsection of the geosciences and physics. She investigates the physical characteristics and procedures of the earth's crust and the interior of the earth (physics of the firm earth, geophysics in the closer sense), enclosure however exactly the samethe physics of the oceans (Ozeanografie) and the atmosphere (meteorology).

It concerns itself thereby primarily with natural features and procedures of the earth and its environment, as well as with technical aspects (S. Applied geophysics) and geophysical maps. TheirSubsections are:

• special geophysics
• hydrology (science of the hydraulic engineering and water management)
• meteorology (science of the troposphere)
• aeronomy (science of the stratosphere)
• ionosphere research (science of the thermosphere)

• general geophysics with 3 subranges:

1. theoretical geophysics, itself e.g.with the Potentialtheorie, which wave equations or the Geodynamik concerns, whereby apart from the cartesian coordinate system in particular also the spherical coordinate system is used.
2. experimental geophysics (in the laboratory) are determined, in that for example the sound - conductivity of different rocks under high pressure orat models the propagation is simulated by seismic waves in the interior of the earth. Besides also the numeric simulation takes a ever broader area.
3. applied geophysics to exploration (investigation), approximately to the search for oil, water or ores, or for determinationof potenziell suitable dumps for wastes, in particular radioactive waste. The moreover within the environmental range (refuse dumps/dumps, to building ground investigations (stability) or in the agriculture (Agro geophysics).

The geophysical reconnaissance procedure can be arranged into the following partial disciplines:

• Potential procedure
  • Geoelektrik
  • Geoelektromagnetik
  • Geomagnetik
  • Geothermik
  • gravimetry

• wave procedure
  • seismology
  • seismology

• Electromagnetic procedures
  • geo radar (Ground Penetrating radar, GPR)
  • Magnetotellurik (MT)
  • radiometry
  • transient Elektromagnetik (TEM or TDEM)
  • VLF

the global research agenda of geophysics become in the context of the IUGG (international union for geodesy and geophysics) and their 7 associations coordinated. For regionaland technical fields and the raw material investigation are there further organization forms. [1]

Organization of geophysics in the German-speaking countries - the German geophysical society registered association: [2]

Web on the left of

Wiktionary: Geophysics - word origin, synonyms and translations

• Geosciences forum: Geophysics
• transient Elektromagnetik (Elektromagnetikin the time intervall)
• view of geophysics