Articles | Volume 22, issue 4
https://doi.org/10.5194/os-22-2179-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-22-2179-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Jul 2026
Research article |
| 20 Jul 2026
| 20 Jul 2026
Improving ocean bottom pressure fields using space gravity data in state estimation
Atmospheric and Environmental Research, JANUS Research Group, LLC, Lexington, MA, USA
E. Nishchitha S. Silva
Atmospheric and Environmental Research, JANUS Research Group, LLC, Lexington, MA, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
Ichiro Fukumori
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
Mengnan Zhao
Atmospheric and Environmental Research, JANUS Research Group, LLC, Lexington, MA, USA
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Short summary
Ocean bottom pressure (pb) is a key variable for monitoring the ocean circulation, yet global space gravimetry observations offer limited coverage in space and time. Our work examines how to improve estimates of pb by optimally combining information in available data with an ocean circulation model. Results indicate that gravimetry data contain information complementary to that available in other ocean datasets and are thus important for determining variations in pb and related circulations.
Ocean bottom pressure (pb) is a key variable for monitoring the ocean circulation, yet global...
