Time variations of the gravity field over Europe obtained from GRACE data

• Autorzy: Kloch-Glowka G. , Krynski J. , Szelachowska M.
• Języki publikacji: EN

Abstrakty

EN

Time variations of the gravity field derived from time series of geopotential model developed from GRACE data can be interpreted in terms of geoid heights, and mass time variations with unprecedented temporal resolution. Following the results of authors previous research presented at 2nd General Assembly of the IGFS, 20-22 September 2010, Fairbanks, Alaska, the series of monthly solutions of geopotential models developed from GRACE data in JPL, filtered with the use of DKK1 filter, and GLDAS hydrological model were used in the analyses. Variations of hydrology as well as variations of geoid heights for the period August 2002 – June 2010 at the continental part of Europe and selected 14 subareas were estimated with spatial resolution of 0.5° x 0.5° . Variations in mass distribution obtained from geopotential models were compared with the respective results obtained from hydrological data. Models of geoid height changes (parameters of trend and seasonal variations) were determined for the area of Europe and for 14 subareas. To verify models of geoid height changes, over the period July 2010 - October 2010 values of geoid height changes calculated using GRACE data were compared with values based on the models developed.

Słowa kluczowe

EN

geoid height variations; GRACE mission; geopotential models

PL

zmiany wysokości geoidy; misja GRACE; modele geopotencjalne

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2012
• Tom: z. 1/92
• Strony: 175--190
• Opis fizyczny: Bibliogr. 31 poz., rys., wykr.

Twórcy

autor

Kloch-Glowka G.

• Institute of Geodesy and Cartography, Warsaw, Poland

autor

Krynski J.

• Institute of Geodesy and Cartography, Warsaw, Poland

autor

Szelachowska M.

• Institute of Geodesy and Cartography, Warsaw, Poland

Bibliografia

• [1] Andersen, O. B., J. Hinderer (2005). Global inter-annual gravity changes from GRACE: Early results 32, L01402, doi:10.1029/2004GL020948.
• [2] Bettadpur, S. (2007). UTCSR level-2 processing standards document for Level-2 product realese 0004, Technical report, Center for Space Research, University of Texas at Austin.
• [3] Biancale, R., J.-M. Lemoine, G. Balmino, S. Bruinsma, F. Perosanz, J.-C. Marty (2007). 5 years of gravity variations from GRACE and LAGEOS data at 10-day intervals over the period from July 29th 2002 to June 22nd 2007 http://bgi.cnes.fr:8110/geoid-variations/README.html.
• [4] Chambers, D. P. (2006). Evaluation of new GRACE time-variable gravity data over the ocean 33, L17603, doi:10.1029/2006GL027296.
• [5] Chen, J., C. Wilson, D. Blankenship, B. Tapley (2006a). Antarctic mass rates from GRACE, Geophysical Research Letters 33, L11502, doi:10.1029/2006GL026369.
• [6] Chen, J., C. Wilson, K. Seo (2006b). Optimized smoothing of gravity recovery and climate experiment (GRACE) time-variable gravity observations, J. Geophys. Res. 111, B06408, doi:10.1029/2005JB004064.
• [7] Davis, J., M. Tamisiea, P. Elósegui, J. Mitrovica, E. Hill (2008). A statistical filtering approach for Gravity Recovery and Climate Experiment (GRACE) gravity data, J. Geophys. Res. 113, B04410, doi:10.1029/2007JB005043.
• [8] Flechtner, F. (2007). GRACE 327-743: GFZ Level-2 Processing Standards Document for Level-2 Product Realise 0004 GeoForschungsZentrum Potsdam, Germany.
• [9] Flechtner, F., C. Dahle, K. Neumayer, R. König, C. Förste (2010). The release 04 CHAMP and GRACE EIGEN gravity models pages 41–58, doi:10.1007/978-3-642-10228-8 4, in: F. Flechtner et al. (ed.), System Earth via geodetic geophysical space techniques. Adv technologies in Earth sciences, part 1, Springer, Berlin.
• [10] Förste, C., R. Schmidt, R. Stubenvoll, F. Flechtner, U. Meyer, R. König, H. Neumayer, R. Biancale, J. Lemoine, S. Bruinsma, S. Loyer, F. Barthelmes, S. Esselborn (2008). The GeoForschungsZentrum Potsdam/Groupe de Recherche de Geodesie Spatiale satellite-only and combined gravity field models: EIGEN-GL04S1 and EIGENGL04C, Journal of Geodesy 82, 331–346.
• [11] Horwath, M., R. Dietrich (2006). Error structures of GRACE monthly solutions and their propagation into inferred regional mass variations EGU, Vienna, Austria, 2-7 April 2006.
• [12] Ilk, K., M. Feuchtinger, T. Mayer-Gürr (2005). Gravity field recovery and validation by analysis of short arcs of a satellite-to-satellite tracking experiment as CHAMP and GRACE pages 189–194, in: F. Sanso (ed.), A window on the future of geodesy, IUGG General Assembly 2003, June 30-July 11 2003, Sapporo, Japan, IAG Symposia, Vol. 128, Springer, Berlin, Heidelberg, New York.
• [13] Klees, R., E. Revtova, B. Gunter, P. Ditmar, E. Oudman, H. Winsemius, H. Savenije (2008). The design of an optimal filter for monthly GRACE gravity models, Geophysical Journal International 175, 417–432.
• [14] Kloch-Glowka, G., M. Szelachowska, J. Krynski (2011). Analysis of time variations of the gravity field over Europe obtained from GRACE data in terms of geoid height and mass variation, Earth on the Edge: Science for a Sustainable Planet, XXV IUGG General Assembly, Melbourne, Australia, 28 June - 7 July 2011 .
• [15] Kusche, J. (2007). Approximate decorrelation and non-isotropic smoothing of time variable GRACE-type gravity field models, J. Geod. 81, 733–749.
• [16] Kusche, J., R. Schmidt, S. Petrovic, R. Rietbroek (2007). Decorrelated GRACE Time-Variable Gravity Solutions by GFZ, and their Validation using a Hydrological Model, GeoForschungsZentrum Potsdam .
• [17] Lemoine, J.-M., S. Bruinsma, S. Loyer, J.-C. Biancale, R.and Marty, F. Perosanz, G. Balmino (2007). Temporal gravity field models inferred from GRACE data, Advances in Space Research 39, 1620–1629, doi:10.1016/j.asr.2007.03.062.
• [18] Liu, X., P. Ditmar, C. Siemes, D. Slobbe, E. Revtova, R. Klees, R. Riva, Q. Zhao (2010). DEOS mass transport model (DMT-1) based on grace satellite data: methodology and validation, Geophys J. Int. 181(2), 769–788.
• [19] Luthcke, S., D. Rowlands, F. Lemoine, S. Klosko, D. Chinn, J. McCarthy (2006). Monthly spherical harmonic gravity field solutions determined from GRACE inter-satellite range-rate data alone, Geophysical Research Letters 33, l02402, doi:10.1029/2005GL024846.
• [20] Ramillien, G., A. Lombard, A. Cazenave, E. Ivins, M. Llubes, F. Remy, R. Biancale (2006). Interannual variations of the mass balance of the Antarctica and Greenland ice sheets from GRACE, Global and Planetary Change 53, 198-208.
• [21] Sasgen, I., Z. Martinec, K. Fleming (2006). Wiener optimal filtering of GRACE data.
• [22] Schmidt, R., F. Flechtner, C. Reigber, P. Schwintzer, A. Günter, P. Doll, G. Ramillien, A. Cazenave, S. Petrovic, H. Jochman, J. Wunsch (2006). GRACE observations of changes in continental water storage, Glob. Planet. Change 50(1-2), 112–126, doi:10.1016/j.gloplacha.2004.11.018. Kloch-Glowka et al.
• [23] Swenson, S., J. Wahr (2006). Post-processing removal of correlated errors in GRACE data, Geophys. Res. Lett. 33, L08402, doi:10.1029/2005GL025285.
• [24] Szelachowska, M., G. Kloch-Główka, J. Kryński (2010). Choice of data from GRACE as well as filtering method for the analysis of time variations of the gravity field over Europe, 2nd General Assembly of the IGFS – International Gravity Field Service, 20-22 September 2010, Fairbanks, Alaska, USA .
• [25] Tapley, B., S. Bettadpur, M. Watkins, C. Reigber (2004). The gravity recovery and climate experiment: mission overview and early results, Geophys. Res. Lett. 31, L09607, doi:10.1029/2004GL019920.
• [26] Tapley, B., J. Ries, S. Bettadpur, D. Chambers, M. Cheng, F. Condi, B. Gunter, Z. Kang, P. Nagel, R. Pastor, S. Poole, F. Wang (2005). GGM02 – an improved Earth gravity field model from GRACE, Journal of Geodesy 79, 467-478.
• [27] Wahr, J., M. Molenaar, F. Bryan (1998). Time variability of the earth’s gravity field: Hydrological and oceanic effects and their possible detection using GRACE, J. Geophys. Res. 103(B12), 30205–30229.
• [28] Watkins, M., D. Yuan (2007). JPL Level-2 processing standards document for Level-2 product realise 0004 Jet Propulsion Laboratory.
• [29] Wouters, B., E. Schrama (2007). Improved accuracy of GRACE gravity solutions through empirical orthogonal function filtering of spherical harmonics, Geophysical Research Letters 34, L23711, doi:10.1029/2007Gl032098.
• [30] WWW-1 ( ) http://icgem.gfz-potsdam.de/ICGEM/.
• [31] WWW-2 ( ) http://www.csr.utexas.edu/research/ggfc/dataresources.html.