Investigation of the variations of the Earth's gravity field by space geodesy data

Geodesy
UDC: 
528.3
DOI: 
10.22389/0016-7126-2016-915-9-5-9
1 Spesivtsev A.A.
Year: 
2016
№: 
9
915
Pages: 
5–9

Center of Geodesy, Cartography and SDI

1, 
Abstract:
The article considers the results of the analysis of temporal variations of the geopotential coefficients obtained under Gravity Recovery and Climate Experiment (GRACE) mission operations. For this purpose were used spherical harmonic models for the time span from 2002 to 2015 years. Methods of the spectral analysis were used for determination of type of the parametric model which was used for computations of temporal variations of the geopotential coefficients. The estimates of temporal variations were investigated by Fisher test. The article shows the geoid height variations caused by changes in the harmonic coefficients. For verification of the results were performed comparisons with outcomes in the other researches.
References: 
1.   Kobzar' A.I. Prikladnaya matematicheskaya statistika. Dlya inzhenerov i nauchnyh rabotnikov. M.: FIZMATLIT, 2006, 816 p.
2.   Nepoklonov V.B., Lidovskaya E.A., Spesivcev A.A. Ocenka kachestva modelej gravitacionnogo polya Zemli. Izv. vuzov. Geodeziya i aehrofotos"yomka, 2014, no. 2, pp. 24–32.
3.   Steffen Holger, Heiner Denker, Jürgen Müller (2008) Glacial isostatic adjustment in Fennoscandia from GRACE data and comparison with geodynamical models. Journal of Geodynamics 46.3, pp. 155–164.
4.   Tapley B., Bettadpur S., Watkins M., Reigber C. (2004) The gravity recovery and climate experiment: Mission overview and early results. Geophysical Research Letters, Volume 31, no. 9, pp. L09607. DOI: 10.1029/2004GL019920.
5.   Tregoning Paul, et al. (2009) Glacial isostatic adjustment and nonstationary signals observed by GRACE. Journal of Geophysical Research: Solid Earth 114.B6, pp. 1–10.
6.   Velicogna Isabella, John Wahr (2005) Greenland mass balance from GRACE. Geophysical Research Letters 32.18, pp. 1–4.
7.   Wahr John, et al. (2004) Time-variable gravity from GRACE: First results. Geophysical Research Letters 31.11, pp. 1–4.
Citation:
Spesivtsev A.A., 
(2016) Investigation of the variations of the Earth's gravity field by space geodesy data. Geodesy and cartography = Geodezia i Kartografia, (9), pp. 5–9. (In Russian). DOI: 10.22389/0016-7126-2016-915-9-5-9
Publication History
Received: 16.09.2016
Accepted: 19.09.2016
Published: 25.10.2016

Content

2016 September DOI:
10.22389/0016-7126-2016-915-9