Abstract
Abstract. Bottom pressure estimates from three different Gravity Recovery and Climate Experiment (GRACE)
series (an experimental Center for Space Research (CSR) swath series, ITSG2016, and ITSG2018)
and two global ocean models (OMCT and MPIOM) are compared to Jason altimetry
sea level anomaly estimates in order to determine the accuracy of the GRACE
and model data at sub-monthly timescales. We find that the GRACE series are
capable of explaining 25 %–75 % of the sub-monthly altimetric variability
over most of those ocean regions that have high signal strength. All three
GRACE series explain more of the sub-monthly variability than the
de-aliasing products they were created with. Upon examination over finer
frequency bands, the GRACE series prove superior at explaining the
altimetric signal for signals with periods as short as 10 d.
Subject
Cell Biology,Developmental Biology,Embryology,Anatomy
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