Publication detail

Combination of heterogenous geodetic data in detailed gravity field modelling

KOSTELECKY,J., MACHOTKA, R., ŠIMEK, J.

Original Title

Combination of heterogenous geodetic data in detailed gravity field modelling

English Title

Combination of heterogenous geodetic data in detailed gravity field modelling

Type

abstract

Language

Czech

Original Abstract

In this study a detailed gravity field is represented by the disturbing gravity potential and its first and higher order derivatives. These characteristics play an important role in geodesy providing a link between geometric and gravity space, but, under certain conditions, they can also contribute to structural interpretations of geodynamic phenomena. Their estimates are based on a combination of different observables coming from high degree/order harmonic expansion of the EGM08 earth gravitational model (2160/2160), from a large number of directly observed astronomical coordinates, GNSS/levelling based height anomaliesas well as from an extremely detailed anomalous gravity field description by point gravity anomalies. Computations are performed for two test areas located in central Moravia, the Czech Republic. Accuracy assessment and investigations towards contributions of the terrestrial gravity data are accomplished by reflections about an optimal distribution of observables.

English abstract

In this study a detailed gravity field is represented by the disturbing gravity potential and its first and higher order derivatives. These characteristics play an important role in geodesy providing a link between geometric and gravity space, but, under certain conditions, they can also contribute to structural interpretations of geodynamic phenomena. Their estimates are based on a combination of different observables coming from high degree/order harmonic expansion of the EGM08 earth gravitational model (2160/2160), from a large number of directly observed astronomical coordinates, GNSS/levelling based height anomaliesas well as from an extremely detailed anomalous gravity field description by point gravity anomalies. Computations are performed for two test areas located in central Moravia, the Czech Republic. Accuracy assessment and investigations towards contributions of the terrestrial gravity data are accomplished by reflections about an optimal distribution of observables.

Keywords

gravity field

Key words in English

gravity field

Authors

KOSTELECKY,J., MACHOTKA, R., ŠIMEK, J.

Released

22. 4. 2012

Location

EGU General Assembly 2012, Vienna, Austria

Pages from

1

Pages to

1

Pages count

1

URL

http://meetingorganizer.copernicus.org/EGU2012/EGU2012-8650.pdf

BibTex

@misc{BUT97402,
  author="Radovan {Machotka}",
  title="Combination of heterogenous geodetic data in detailed gravity field modelling",
  year="2012",
  pages="1--1",
  address="EGU General Assembly 2012,
Vienna, Austria",
  url="http://meetingorganizer.copernicus.org/EGU2012/EGU2012-8650.pdf",
  note="abstract"
}