Articles | Volume 16, issue 2
Research article
15 Apr 2020
Research article |  | 15 Apr 2020

Evaluation of sub-monthly oceanographic signal in GRACE “daily” swath series using altimetry

Jennifer A. Bonin and Himanshu Save

Data sets

AVISO satellite altimetry data: dynamic atmospheric correction CNES

Short summary
Bottom pressure estimates from three GRACE gravity series and two global ocean models are compared to Jason altimetry sea level anomaly estimates to determine the accuracy of the GRACE and model data at sub-monthly timescales. The GRACE series can explain 25–75 % of the sub-monthly altimetric variability in most ocean regions with high signal strength. The GRACE series explain more of the sub-monthly variability than their de-aliasing model products can to periods as short as 10 d.