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  2. Surface wave inversion - Wikipedia

    en.wikipedia.org/wiki/Surface_wave_inversion

    Surface-wave inversion is the method by which elastic properties, density, and thickness of layers in the subsurface are obtained through analysis of surface-wave dispersion. [2] The entire inversion process requires the gathering of seismic data, the creation of dispersion curves, and finally the inference of subsurface properties. Figure 1.

  3. Seismic interferometry - Wikipedia

    en.wikipedia.org/wiki/Seismic_Interferometry

    Other challenges are inherent to seismic interferometry. For example, the source term only drops out in the case of the crosscorrelation of a direct wave at a location A with a ghost reflection at a location B. The correlation of other waveforms can introduce multiples to the resulting interferogram. Velocity analysis and filtering can reduce ...

  4. Template:OSM Location map/examples - Wikipedia

    en.wikipedia.org/wiki/Template:OSM_Location_map/...

    Template:OSM Location map/examples - Wikipedia ... References ^

  5. Surface map - Wikipedia

    en.wikipedia.org/wiki/Surface_map

    In mathematics, geology, and cartography, a surface map is a 2D perspective representation of a 3-dimensional surface. [1] Surface maps usually represent real-world entities such as landforms or the surfaces of objects. They can, however, serve as an abstraction where the third, or even all of the dimensions correspond to non-spatial data. In ...

  6. Tectonic uplift - Wikipedia

    en.wikipedia.org/wiki/Tectonic_uplift

    Displacement of the Earth's surface with respect to the geoid. This is what we refer to as "surface uplift"; and surface uplift can be defined by averaging elevation and changes in elevation over surface areas of a specified size. The "uplift of rocks" refers to the displacement of rocks with respect to the geoid.

  7. Surface wave - Wikipedia

    en.wikipedia.org/wiki/Surface_wave

    This radiative ground wave is known as Norton surface wave, or more properly Norton ground wave, because ground waves in radio propagation are not confined to the surface. Another type of surface wave is the non-radiative, bound-mode Zenneck surface wave or Zenneck–Sommerfeld surface wave .

  8. Isoseismal map - Wikipedia

    en.wikipedia.org/wiki/Isoseismal_map

    [4] [5] Robert Mallet coined the term "isoseismal" and produced a map for the 1857 Basilicata earthquake with a three-fold intensity scale and used this and other information to identify the epicentral area (a term he also coined). [6] Later studies made use of similar techniques, the main changes being to the actual seismic intensity scale ...

  9. Near-surface geophysics - Wikipedia

    en.wikipedia.org/wiki/Near-surface_geophysics

    Magnetic surveying can be done on a planetary scale (for example, the survey of Mars by the Mars Global Surveyor) or on a scale of meters. In the near-surface, it is used to map geological boundaries and faults, find certain ores, buried igneous dykes, [8] locating buried pipes and old mine workings, and detecting some kinds of land mines.