GRACE signal filtering as a means of determining equivalent water thickness in Poland

• Autorzy: Birylo M. , Nastula J.
• Języki publikacji: EN

Abstrakty

EN

In the paper an Equivalent Water Thickness (EWT) determination as a way of observing gravity variations is described. Since raw data acquired directly from Gravity Recovery and Climate Experiment – GRACE satellites is unsuitable for analysis due to stripes occurrence, a filtering algorithm must be used. In this paper, authors are testing two isotropic (Gauss, CNES/GRGS) filters and two anisotropic filters (Wiener-Kolomogorov, ANS). Correlation, amplitude ratio, and modification were determined as well as maps were generated.

Słowa kluczowe

EN

GRACE zob.Gravity Recovery and Climate Experiment; Gravity Recovery and Climate Experiment; determination; equivalent water thickness; filter; Poland

• Wydawca: -
• Czasopismo: Papers on Global Change
• Rocznik: 2012
• Numer: 19
• Opis fizyczny: p.33-42,fig.,ref.

Twórcy

autor

Birylo M.

• Department of Astronomy and Geodynamics, University of Warmia and Mazury, Heweliusza St.10/2, 10-724 Olsztyn, Poland

autor

Nastula J.

• Social Academy of Science, Sienkiewicza St.9, 90-113 Lodz, Poland

Bibliografia

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• Liu X., 2008, Global Gravity Field Recovery from satellite-to-satellite tracking data with the acceleration approach, PhD thesis published in Publications on Geodesy, 68.
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• Tapley B.D., Reiger Ch., 2008, The GRACE Mission, Status and Results, 2nd International GOCE User Workshop, Italy.
• Veselinova-Renglova E., 2007, A Dynamic Geoid Model for Canada, A thesis submitted to the faculty of graduate studies in partial fulfillment of the requirements for the degree of doctor of philosophy, UCGE Reports Number 20261.
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• http://www.eea.europa.eu/data-and-maps/data/biogeographical-regions-europe-2008/zipped-shapefile-format-vector-polygon