Dynamically and Kinematically Consistent Global Ocean Circulation and Ice State Estimates

The World Ocean Circulation Experiment drove the development of estimates of the decadal scale time evolving general circulation that are dynamically and kinematically consistent. A long timescale, and a goal of estimation rather than prediction, preclude the use of meteorological methods called “da...

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Bibliographic Details
Main Authors: Wunsch, Carl, Heimbach, Patrick
Format: Other/Unknown Material
Language:English
Published: Elsevier BV 2013
Subjects:
general circulation
state estimation
data assimilation
reanalysis
sea ice physics
adjoint methods
ice-ocean interactions
ECCO
Arctic
Lagrange
Sea ice
Online Access:http://nrs.harvard.edu/urn-3:HUL.InstRepos:12136112
https://doi.org/10.1016/b978-0-12-391851-2.00021-0
Description
Summary:The World Ocean Circulation Experiment drove the development of estimates of the decadal scale time evolving general circulation that are dynamically and kinematically consistent. A long timescale, and a goal of estimation rather than prediction, preclude the use of meteorological methods called “data assimilation (DA).” Instead, “state estimation” methods are reviewed here and distinguished from DA. Results from the dynamically consistent family of solutions from the project Estimating the Circulation and Climate of the Ocean based upon least-squares Lagrange multipliers (adjoints) are used to discuss the determination of the dominant elements of the circulation in the period since 1992—which marked the beginning of the satellite altimetric record. Significant changes documented in the Arctic in recent decades now mandate consideration of the coupled ocean-cryospheric state. Earth and Planetary Sciences Version of Record

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