Atmospheric mass flow reduction for terrestrial absolute gravimetry in the fennoscandian land uplift network

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Autoren

  • O. Gitlein
  • L. Timmen

Organisationseinheiten

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Details

OriginalspracheEnglisch
Titel des SammelwerksDynamic Planet
UntertitelMonitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools - lAG Symposium
Seiten461-466
Seitenumfang6
ISBN (elektronisch)9783540493501
PublikationsstatusVeröffentlicht - 2007
VeranstaltungIAG Symposium on Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools - Cairns, QLD, Australien
Dauer: 22 Aug. 200526 Aug. 2005

Publikationsreihe

NameInternational Association of Geodesy Symposia
Band130
ISSN (Print)0939-9585

Abstract

Temporal variations of the atmospheric density distribution induce changes in the gravitational air mass attraction at a specific observation site. Additionally, the load of the atmospheric masses deforms the Earth's crust and the sea surface. Variations in the local gravity acceleration and atmospheric pressure are known to be correlated with an admittance of about -3 nms-2 per hPa as an average factor, which is in accordance with the IAG Resolution No. 9, 1983. A more accurate correlation factor for a gravity station is varying with time and depends on the total global mass distribution of the atmosphere. For the absolute gravimetric observations of the Fennoscandian land uplift, the atmospheric attraction effect of the local zone has been calculated with 3D atmospheric data describing different pressure levels up to a height of 50 km. To model the regional and global attraction and deformation components with Green's functions method, 2D surface atmospheric data have been used. The improved atmospheric effects have been computed for the position-dependent absolute gravity observations in Fennoscandia performed by the Institut für Erdmessung (IfE) in 2003. The objective is to ensure an air mass reduction within ±3 nms-2 accuracy. For the 2003 campaigns, the use of atmospheric actual data has improved the reductions by about 9 nms-2 (max. 14 nms-2).

ASJC Scopus Sachgebiete

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Atmospheric mass flow reduction for terrestrial absolute gravimetry in the fennoscandian land uplift network. / Gitlein, O.; Timmen, L.
Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools - lAG Symposium. 2007. S. 461-466 (International Association of Geodesy Symposia; Band 130).

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Gitlein, O & Timmen, L 2007, Atmospheric mass flow reduction for terrestrial absolute gravimetry in the fennoscandian land uplift network. in Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools - lAG Symposium. International Association of Geodesy Symposia, Bd. 130, S. 461-466, IAG Symposium on Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools, Cairns, QLD, Australien, 22 Aug. 2005. https://doi.org/10.1007/978-3-540-49350-1_67
Gitlein, O., & Timmen, L. (2007). Atmospheric mass flow reduction for terrestrial absolute gravimetry in the fennoscandian land uplift network. In Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools - lAG Symposium (S. 461-466). (International Association of Geodesy Symposia; Band 130). https://doi.org/10.1007/978-3-540-49350-1_67
Gitlein O, Timmen L. Atmospheric mass flow reduction for terrestrial absolute gravimetry in the fennoscandian land uplift network. in Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools - lAG Symposium. 2007. S. 461-466. (International Association of Geodesy Symposia). doi: 10.1007/978-3-540-49350-1_67
Gitlein, O. ; Timmen, L. / Atmospheric mass flow reduction for terrestrial absolute gravimetry in the fennoscandian land uplift network. Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools - lAG Symposium. 2007. S. 461-466 (International Association of Geodesy Symposia).
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