GRACE Error Estimation using Wahr et al. (2006) method #35
Description
Wahr et al. (2006) used the second method to determine the uncertainties in the GRACE SH coefficients as
the standard deviation of the residuals of coefficients when seasonal cycles were removed. This method may also overestimate the GRACE measurement error because we assume that all non-seasonal variability of Stokes coefficients results from the measurement error.
Is the method reliable? If the method is reliable, should it be added to future version of the package?