Improved methods for observing Earth's time variable mass distribution with GRACE using spherical cap mascons
California Institute of Technology · Jet Propulsion Laboratory
Abstract
Abstract We discuss several classes of improvements to gravity solutions from the Gravity Recovery and Climate Experiment (GRACE) mission. These include both improvements in background geophysical models and orbital parameterization leading to the unconstrained spherical harmonic solution JPL RL05, and an alternate JPL RL05M mass concentration (mascon) solution benefitting from those same improvements but derived in surface spherical cap mascons. The mascon basis functions allow for convenient application of a priori information derived from near‐global geophysical models to prevent striping in the solutions. The resulting mass flux solutions are shown to suffer less from leakage errors than harmonic…
Citation impact
- FWCI
- 65.86
- Percentile
- 100%
- References
- 64
Authors
5- MMM. M. Watkins
California Institute of Technology, Jet Propulsion Laboratory
- DND. N. WieseCorresponding
California Institute of Technology, Jet Propulsion Laboratory
- DYDah‐Ning Yuan
California Institute of Technology, Jet Propulsion Laboratory
- CBCarmen Böening
California Institute of Technology, Jet Propulsion Laboratory
- FWFelix W. Landerer
California Institute of Technology, Jet Propulsion Laboratory
Topics & keywords
- Spherical harmonics
- Geodesy
- Latitude
- Harmonic
- Geology
- Physics
- Mathematics
- Mathematical analysis