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World ocean annual mean absolute geostrophic velocity on marine geoid of EIGEN-6C4 from WOA13
Citable as data publication
Chu, P.C.; Department of Oceanography. Naval Postgraduate School: USA; (2020): World ocean annual mean absolute geostrophic velocity on marine geoid of EIGEN-6C4 from WOA13. Marine Data Archive. https://doi.org/10.14284/398
Contact: Chu, Peter C.

Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

Description
Dataset containing 15,481 (u, v) data pairs for geostrophic currents. Data available in NetCDF and txt. more

The dataset was generated for the paper entitled "A complete formula of ocean surface absolute geostrophic currents" in the Nature Scientific Reports, hosted on the Marine Data Archive and NOAA National Centers for Environmental Information (NCEI) websites. This dataset was established from two open sources: (1) geoid undulation (N) from EIGEN-6C4, which is a static global combined gravity field model up to degree and order 2190, and (2) "World ocean geostrophic velocity inverted from World Ocean Atlas 2013 with the P-vector method" (NCEI accession 0121576). With the given non-positive values of N in the oceans, absolute geostrophic currents (u, v) are easily obtained on N with 1o×1o resolution from the second dataset except the equatorial zone (5oS ⍊ 5oN) due to the non-existence of the geostrophic balance. Data clearly show that the theoretical hypothesis "no oceanic motion on the marine geoid N" prevailing in both marine geodetic and oceanographic communities should be rejected.

Scope
Keywords:
Marine, Absolute geostrophic currents, EIGEN (European Improved Gravity model of the Earth by New techniques), Global geoid undulation, physical: geostrophic currents, World Ocean Atlas 2013 (WOA13), World Oceans

Geographical coverage
World Oceans [Marine Regions]

Temporal coverage
1950 - 2019

Parameters
Geoid undulation, longitudinal and latitudinal absolute geostrophic currents on marine geoid

Contributors
Naval Postgraduate School; Department of Oceanography, moredata creator

Dataset status: Completed
Data type: Data
Data origin: Data collection
Metadatarecord created: 2020-01-17
Information last updated: 2020-02-06
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy