Journal ArticleDOI
Quality assessment of sub-Nyquist recovery from future gravity satellite missions
TLDR
In this article, the authors investigated the quality of sub-Nyquist time interval recoveries of different orbit configurations and formation flights, in particular, the dependence of the gravity field accuracy on the measurement duration and ground-track patterns of the satellite formations.About:
This article is published in Advances in Space Research.The article was published on 2013-09-01. It has received 16 citations till now. The article focuses on the topics: Satellite & Satellite geodesy.read more
Citations
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Journal ArticleDOI
Comparing seven candidate mission configurations for temporal gravity field retrieval through full-scale numerical simulation
Basem Elsaka,J. C. Raimondo,Phillip Brieden,T. Reubelt,Jürgen Kusche,Frank Flechtner,Siavash Iran Pour,Nico Sneeuw,Jürgen Müller +8 more
TL;DR: In this article, the authors focus on improving the quality of gravity field models in the form of spherical harmonic representation via alternative configuration scenarios applied in future gravimetric satellite missions, and they performed full-scale simulations of various mission scenarios within the frame work of the German joint research project “Concepts for future gravity field satellite missions.
Journal ArticleDOI
Optimal orbits for temporal gravity recovery regarding temporal aliasing
TL;DR: In this paper, the authors present a method with which optimal altitudes for the orbit of a gravity satellite mission with the goal of temporal gravity retrieval can be identified, which is independent of any (post-) processing method to reduce temporal aliasing.
Journal ArticleDOI
Consistent quantification of the impact of key mission design parameters on the performance of next-generation gravity missions
TL;DR: In this article, the authors quantified the performance of a single-pair mission with laser interferometry in a low-orbit with a drag compensation system compared to the GRACE/GRACE-FO.
Journal ArticleDOI
Feasible Multiple Satellite Mission Scenarios Flying in a Constellation for Refinement of the Gravity Field Recovery
TL;DR: In this article, a comparative study of the performance of the three-satellite GRAPEN constellation with respect to other satellite constellations is presented, and the results are analyzed in the spectral wavelength spectrum of the gravity field up to a spherical harmonics degree of n = 100.
Book ChapterDOI
Future Gravity Field Satellite Missions
T. Reubelt,Nico Sneeuw,Siavash Iran Pour,Marc Hirth,Walter Fichter,Jürgen Müller,Phillip Brieden,Frank Flechtner,Jean Claude Raimondo,Jürgen Kusche,Basem Elsaka,Thomas Gruber,Roland Pail,Michael Murböck,B. Doll,Rolf Sand,Xinxing Wang,Volker Klein,Matthias Lezius,Karsten Danzmann,Gerhard Heinzel,Benjamin Sheard,Ernst M. Rasel,M. Gilowski,Christian Schubert,Wolfgang Schäfer,Andreas Rathke,Hansjörg Dittus,Ivanka Pelivan +28 more
TL;DR: The Future Gravity Field Satellite Missions (FGM) project as discussed by the authors was a logical consequence of two previous phases in Theme 2 “Observation of the System Earth from Space” in the BMBF/DFG (Federal Ministry of Education and Research/German Research Foundation) Research and Development Programme GEOTECHNOLOGIEN.
References
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Journal ArticleDOI
GRACE measurements of mass variability in the Earth system.
TL;DR: Geoid variations observed over South America that can be largely attributed to surface water and groundwater changes show a clear separation between the large Amazon watershed and the smaller watersheds to the north.
Journal ArticleDOI
Regularization of geopotential determination from satellite data by variance components
Karl-Rudolf Koch,Jürgen Kusche +1 more
TL;DR: In this paper, a Bayesian inference on variance components is proposed to solve the two tasks by using a stochastic estimator of the traces of matrices connected with the inverse of the matrix of normal equations.
Journal ArticleDOI
Subhertz linewidth diode lasers by stabilization to vibrationally and thermally compensated ultralow-expansion glass Fabry-Pérot cavities
TL;DR: In this paper, the authors achieved a 0.5 Hz optical beat note linewidth with a frequency drift at 972 nm between two external cavity diode lasers independently stabilized to two vertically mounted Fabry-P\'erot (FP) reference cavities with a finesse of 400 000.
Journal ArticleDOI
Intersatellite laser ranging instrument for the GRACE follow-on mission
Benjamin Sheard,Gerhard Heinzel,Karsten Danzmann,Daniel A. Shaddock,William Klipstein,William M. Folkner +5 more
TL;DR: In this article, the authors present the top-level architecture of an interferometric laser ranging system designed to demonstrate the technology which can also operate in parallel with the microwave ranging system of the GRACE follow-on mission.