Ocean Science
Ocean Science
OS
Articles | Volume 14, issue 5
Articles | Volume 14, issue 5
https://doi.org/10.5194/os-14-947-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-14-947-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 5
Technical note
 | Highlight paper
 | 
04 Sep 2018
Technical note | Highlight paper |  | 04 Sep 2018

Technical note: Two types of absolute dynamic ocean topography

Peter C. Chu

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Latest update: 20 Jan 2025
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Short summary
Two types of marine geoid exist with the first type being the average level of sea surface height if the water is at rest (classical definition), and the second type being satellite-determined with the condition that the water is usually not at rest. The associated absolute dynamic ocean topography (DOT) also has two types. Horizontal gradients of the two DOTs are different with the 1st (2nd) type representing the absolute (relative) surface geostrophic currents.
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