G21C:
GRACE, GRACE Follow-On, and Beyond I

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Session ID#: 30652

Session Description:
The Gravity Recovery and Climate Experiment (GRACE) mission has provided a 15-year data record of temporal variations in the Earth’s gravity field that has become indispensable for climate-related studies.  The first continuity mission, GRACE-Follow On (GRACE-FO) is planned for launch in late 2016/early 2017.  Further, various community initiatives have explored potential mission concepts for a future satellite gravimetry mission with a focus towards improving the spatio-temporal resolution and accuracy of measuring Earth’s gravity field.  This session solicits contributions about 1) data processing strategies pertaining to current and future missions, 2) mission concepts and measurement systems for future satellite gravimetry missions, including innovative strategies for utilizing the increased precision offered by the laser interferometer on GRACE-FO, and 3) studies concerning complementary data types (GNSS observations, satellite altimetry, etc.) that are used in validation of, combination with, or replacement of (i.e. gap-filling between GRACE and GRACE-FO) satellite gravimetry observations from GRACE/GRACE-FO.
Primary Convener:  David N Wiese, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Convener:  Srinivas V Bettadpur, The University of Texas at Austin, Aerospace Engineering & Engineering Mechanics, Austin, United States
Chairs:  David N Wiese, Jet Propulsion Laboratory, Pasadena, CA, United States and Srinivas V Bettadpur, The University of Texas at Austin, Aerospace Engineering & Engineering Mechanics, Austin, United States
OSPA Liaison:  David N Wiese, Jet Propulsion Laboratory, Pasadena, CA, United States

Cross-Listed:
  • C - Cryosphere
  • GC - Global Environmental Change
  • H - Hydrology
  • OS - Ocean Sciences
Index Terms:

1214 Geopotential theory and determination [GEODESY AND GRAVITY]
1217 Time variable gravity [GEODESY AND GRAVITY]
1225 Global change from geodesy [GEODESY AND GRAVITY]
1241 Satellite geodesy: technical issues [GEODESY AND GRAVITY]

Abstracts Submitted to this Session:

GRACE Status at Mission End (229582)
Byron D Tapley, Univ Texas Austin, Austin, United States, Frank Michael Flechtner, GeoForschungsZentrum Potsdam, Potsdam, Germany, Michael M Watkins, Jet Propulsion Lab, Pasadena, CA, United States, Srinivas V Bettadpur, Center for Space Research, Austin, TX, United States and Processing and archiving of the science data.
Status of CSR RL06 GRACE reprocessing and preliminary results (261135)
Himanshu Save, The University of Texas at Austin, Center for Space Research, Austin, TX, United States and the CSR Level-2 Team
Recovery of surface mass redistribution from a joint inversion of GPS and GRACE data – A methodology and results from the Australian and other continents (247877)
Shin-Chan Han, University of Newcastle, Callaghan, Australia, Natthachet Tangdamrongsub, University of Maryland College Park, College Park, United States and S. Mahdiyeh Razeghi, University of Newcastle, Newcastle, Australia
e.motion – European Initiatives for a Future Gravity Field Mission (223747)
Thomas Gruber, Technical University of Munich, Munich, Germany and e.motion Team
The Earth Gravitational Observatory (EGO): Nanosat Constellations For Advanced Gravity Mapping (261347)
Thomas Yunck1, Alex Saltman1, Srinivas V Bettadpur2, R Steven Nerem3 and John Abel4, (1)GeoOptics Inc., Pasadena, CA, United States, (2)Center for Space Research, Austin, TX, United States, (3)Smead Aerospace Engineering Sciences, Colorado Center for Astrodynamics Research, University of Colorado Boulder, Boulder, CO, United States, (4)Tyvak Nanosatellite Systems, Irvine, CA, United States
GRACE Follow-On and Potential Successors: Mission Options for the Upcoming Decadaes (280546)
Michael M Watkins, Jet Propulsion Laboratory, Pasadena, CA, United States

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