Ocean Science
Ocean Science
OS
Articles | Volume 16, issue 2
Articles | Volume 16, issue 2
https://doi.org/10.5194/os-16-423-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-16-423-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
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

Supplement

https://doi.org/10.5194/os-16-423-2020-supplement

Data sets

AVISO satellite altimetry data: dynamic atmospheric correction CNES https://www.aviso.altimetry.fr/en/data/products/auxiliary-products/atmospheric-correction.html

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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.
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