Post‐processing removal of correlated errors in GRACE data

摘要: [1] Gravity fields produced by the Gravity Recovery and Climate Experiment (GRACE) satellite mission require smoothing to reduce effects of errors present in short wavelength components. As radius decreases, these manifest themselves maps surface mass variability as long, linear features generally oriented north south (i.e., stripes). The presence stripes implies correlations gravity field coefficients. Here we examine spectral signature correlated errors, a method remove them. Finally, apply filter model surface-mass show that has relatively little degradation underlying geophysical signals seek recover.