HR: 1340h
AN: G33A-0901    [Abstracts]
TI: Modelling Individual Sources Of Mass Distribution And Transport In The Earth System By Means Of Satellites
AU: * King, M
EM: m.a.king@newcastle.ac.uk
AF: University of Newcastle, School of Civil Engineering and Geosciences Cassie Building University of Newcastle, Newcastle Upon Tyne, NE1 7RU, United Kingdom
AU: van Dam, T
EM: tonie.vandam@uni.lu
AF: University of Luxembourg, Faculté des Sciences, de la Technologie et de la Communication University of Luxembourg 162a, avenue de la Faïencerie, Luxembourg, L1511, Luxembourg
AU: Visser, P
EM: P.N.A.M.Visser@tudelft.nl
AF: Delft University of Technology, Delft Institute of Earth Observation and Space Systems (DEOS) Delft University of Technology Kluyverweg 1, Delft, 2629 HS, Netherlands
AU: Gruber, T
EM: Thomas.Gruber@bv.tu-muenchen.de
AF: nstitut Für Astronomische Und Physikalische Geodäsie (IAPG), nstitut Für Astronomische Und Physikalische Geodäsie (IAPG)Technische Universität, München, D-80333, Germany
AU: Sneeuw, N
EM: sneeuw@gis.uni-stuttgart.de
AF: Stuttgart University, Institute of Geodesy Stuttgart University Keplerstraße 7, Stuttgart, D-70174, Germany
AU: Bamber, J
EM: j.bamber@bristol.ac.uk
AF: Bristol Glaciology Centre, School of Geographical Sciences University Road University of Bristol, Bristol, BS8 1SS, United Kingdom
AU: Bierkens, M
EM: m.bierkens@geo.uu.nl
AF: Utrecht Centre of Geosciences, Budapestlaan 4, Utrecht, 3584 CD, Netherlands
AU: Losch, M
EM: mlosch@awi-bremerhaven.de
AF: Alfred-Wegener-Institut für Polar-und Meeresforschung, Alfred-Wegener-Institut Postfach 12 01 61, Bremerhaven, 27515, Germany
AU: Bouman, J
EM: j.bouman@sron.nl
AF: Netherlands Institute for Space Research, Sorbonnelaan 2 Pressestelle Helmholtzstraße 10, Utrecht, 3584 CA, Netherlands
AU: Kern, M
EM: Michael.Kern@esa.int
AF: ESA/ESTEC, European Space Research & Technology Centre Keplerlaan 1 Postbus 299, Noordwijk, 2200 AG, Netherlands
AU: Haagmans, R
EM: roger.haagmans@esa.int
AF: ESA/ESTEC, European Space Research & Technology Centre Keplerlaan 1 Postbus 299, Noordwijk, 2200 AG, Netherlands
AB: It has been generally acknowledged that practically all mass-motions within and on the Earth generate a signature in the gravitational field. Current satellite gravity missions, e.g. GRACE, have improved our understanding of the interactions and dynamics of the various components of the Earth's fluids. Future missions such as GOCE promise to enhance our understanding of the dynamics of these fluids even more. Nonetheless the task of unambiguously unravelling the different sources of mass distribution and transport from the accumulated gravity signal as it is observed remains nontrivial. In order to optimally benefit from the high- resolution (both in time and space) and high-accuracy gravity data coming from possible future gravity missions, a study has been initiated by ESA to investigate the potential for improving our ability to separate the various contributions. In this study, we will investigate the need for improved geophysical modelling, mission design and scenario, and methodology required to 1) to de-alias noise from real signal as well as to 2) separate the contributions from the various sources (e.g. to separate ocean mass variability from atmospheric mass variability). This study is being performed by a consortium of nine European groups, combining expertise in all relevant geophysical fields and in designing satellite gravity missions. The study started early 2007 and will last until the end of 2008. This paper presents the background of the study, and explains the (simulation) approach that will be taken to address the goals of the study. Major issues that play a role for the latter are the mission concepts, the state-of-the-art geophysical modelling, the use of dedicated spatio-temporal sampling to tackle the separability issue and the use of complementary data and models.
DE: 1218 Mass balance (0762, 1223, 1631, 1836, 1843, 3010, 3322, 4532)
DE: 1222 Ocean monitoring with geodetic techniques (1225, 1641, 3010, 4532, 4556, 4560, 6959)
DE: 1225 Global change from geodesy (1222, 1622, 1630, 1641, 1645, 4556)
DE: 6994 Instruments and techniques (1241)
SC: Geodesy [G]
MN: 2007 Fall Meeting