Journal : Acta Geophysica
Article : Sub-monthly gravity field recovery from simulated multi-GRACE mission yype

Authors :
Saenger, E.
ETH Zurich Geological Institute, Zurich, Switzerland, erik.saenger@erdw.ethz.ch,
Madonna, C.
ETH Zurich Geological Institute, Zurich, Switzerland,
Almqvist, B.
ETH Zurich Geological Institute, Zurich, Switzerland,
Montahaei, M.
Institute of Geophysics, University of Tehran, Tehran, Iran, mmontaha@ut.ac.ir,
Oskooi, B.
Institute of Geophysics, University of Tehran, Tehran, Iran, boskooi@ut.ac.ir,
Pal, P.
Department of Applied Mathematics, Indian School of Mines, Dhanbad, India, pcpal_ism@yahoo.co.in,
Mandal, D.
Department of Applied Mathematics, Indian School of Mines, Dhanbad, India, dinbandhumandal@gmail.com,
Tsapanos, T.
Aristotle University of Thessaloniki, School of Geology, Geophysical Laboratory, Thessaloniki, Greece, tsapanos@geo.auth.gr,
Bayrak, Y.
Karadeniz Technical University, Department of Geophysics, Trabzon, Turkey, bayrak@ktu.edu.tr,
Cinar, H.
Karadeniz Technical University, Department of Geophysics, Trabzon, Turkey, cinar@ktu.edu.tr,
Koravos, G.
Aristotle University of Thessaloniki, School of Geology, Geophysical Laboratory, Thessaloniki, Greece, gkoravos@sch.gr,
Bayrak, E.
Karadeniz Technical University, Department of Geophysics, Trabzon, Turkey, bayrak@ktu.edu.tr,
Marzec, P.
AGH University of Science and Technology, Faculty of Geology, Geophysics, and Environment Protection, Kraków, Poland, marzec@agh.edu.pl,
Niepsuj, M.
AGH University of Science and Technology, Faculty of Geology, Geophysics, and Environment Protection, Kraków, Poland, magdalena.niepsuj@gmail.com,
Bała, M.
AGH University of Science and Technology, Faculty of Geology, Geophysics, and Environment Protection, Kraków, Poland, bala@geol.agh.edu.pl,
Pietsch, K.
AGH University of Science and Technology, Faculty of Geology, Geophysics, and Environment Protection, Kraków, Poland, pietsch@agh.edu.pl,
Xiao, L.
Key Laboratory of Geo-detection (China University of Geosciences), Ministry of Education, Beijing, China, xiaoliang@cugb.edu.cn,
Liu, X.-P.
Geological Exploration and Development Research Institute Sichuan-Changqing Drilling and Exploration Engineering Co., Chengdu, China,
Zou, C.-C.
Key Laboratory of Geo-detection (China University of Geosciences), Ministry of Education, Beijing, China,
Hu, X.-X.
Geological Exploration and Development Research Institute Sichuan-Changqing Drilling and Exploration Engineering Co., Chengdu, China,
Mao, Z. Q.
State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, China,
Shi, Y.-J.
Research Institute of Exploration and Development, Changqing Oilfield, PetroChina, Xi’an, China,
Guo, H.-P.
Research Institute of Exploration and Development, Changqing Oilfield, PetroChina, Xi’an, China,
Li, G.-R.
Research Institute of Exploration and Development, Changqing Oilfield, PetroChina, Xi’an, China,
Alam, K.
Geophysics Division, Geological Survey of Pakistan, Lahore, Pakistan, khurshaidalam@yahoo.com,
Ahmad, N.
Institute of Geology, University of the Punjab, Lahore, Pakistan, envrnet@brain.net.pk,
Shaban, A.
Conseil National des Recherches Scientifiques, Beirut, Lebanon,
Telesca, L.
Consiglio Nazionale delle Ricerche, Istituto di Metodologie per l’Analisi Ambientale Tito, Italy, luciano.telesca@imaa.cnr.it,
Darwich, T.
Conseil National des Recherches Scientifiques, Beirut, Lebanon,
Amacha, N.
Litani River Authority, Beirut, Lebanon,
Gac, J.
Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warszawa Poland, J.Gac@ichip.pw.edu.pl,
Acharya, N.
Center for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India;, nachiketaacharya@gmail.com,
Kulkarni, M.
Statistical-Research, Skymet Weather Services Pvt. Ltd., Noida, India,
Mohanty, U.
Center for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India,
Singh, A.
Center for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India,
Suparta, W.
Institute of Space Science (ANGKASA), Universiti Kebangsaan Malaysia, Bangi, Selangor Darul Ehsan, Malaysia, wayan@ukm.my,
Fraser, G.
Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand,
Elsaka, B.
Institute of Geodesy and Geoinformation, Bonn University, Bonn, Germany, elsaka@geod.uni-bonn.de,
Abstract : Monthly solutions of the current GRACE mission are affected by the aliasing problem. In fact, sub-monthly temporal sampling may reduce the temporal aliasing errors but this will be done at the cost of reduced spatial sampling. Reducing the effects of temporal aliasing can be achieved by setting two pairs of satellites in different orbital planes. In this paper, we investigate the so-called Multi-GRACE constellation to improve temporal and spatial resolution for the GRACE-type mission without deteriorating accuracy. We investigate two scenarios: the Multi-GRACE ΔM that improves the temporal sampling only and the Multi-GRACE ΔΩ that improves the spatial sampling besides the temporal one in time span of only 12 days for the hydrological signal as a time-varying gravity field component. Our findings indicate that the hydrological signal can be submonthly recovered and the aliasing errors can be reduced as well by increasing temporal resolution (sub-month) via the Multi-GRACE ΔΩ constellations.

Keywords : odzysk pola grawitacyjnego, hydrologiczne odzyskiwanie sygnału, gravity field recovery, Multi-GRACE constellation, hydrological signal recovery, aliasing effects,
Publishing house : Instytut Geofizyki PAN
Publication date : 2014
Number : Vol. 62, no. 1
Page : 241 – 258

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DOI :
Qute : Saenger, E. ,Madonna, C. ,Almqvist, B. ,Montahaei, M. ,Oskooi, B. ,Pal, P. ,Mandal, D. ,Tsapanos, T. ,Bayrak, Y. ,Cinar, H. ,Koravos, G. ,Bayrak, E. ,Marzec, P. ,Niepsuj, M. ,Bała, M. ,Pietsch, K. ,Xiao, L. ,Liu, X.-P. ,Zou, C.-C. ,Hu, X.-X. ,Mao, Z. Q. ,Shi, Y.-J. ,Guo, H.-P. ,Li, G.-R. ,Alam, K. ,Ahmad, N. ,Shaban, A. ,Telesca, L. ,Darwich, T. ,Amacha, N. ,Gac, J. ,Acharya, N. ,Kulkarni, M. ,Mohanty, U. ,Singh, A. ,Suparta, W. ,Fraser, G. ,Elsaka, B. ,Elsaka, B. , Sub-monthly gravity field recovery from simulated multi-GRACE mission yype. Acta Geophysica Vol. 62, no. 1/2014
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