Product: Global Oceanic Angular Momentum
OAM - c20010701 - Version metadata

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Title

OAM - c20010701
Date

2020-08-12
Volume

c20010701
Content

Global oceanic angular momentum mass and motion terms
Ocean model : ECCO (based on MITgcm)
Horizontal domain : 73.5 degrees South to 73.5 degrees North latitude
Horizontal resolution : 1/3 degree at equator to 1 degree at high latitudes by 1 degree longitude
Vertical resolution : 46 levels ranging in thickness from 10 m at surface to 400 m at depth
Boussinesq model? : Yes
Tabulated mass term corrected for volume changes due to steric effects? : Yes

Ocean model forcing :
Surface wind stress : 12-hour NCEP/NCAR reanalysis
Surface heat flux : Daily NCEP/NCAR reanalysis
Surface freshwater flux : Daily NCEP/NCAR reanalysis (freshening only)
Surface pressure : None

Data assimilated : None

Documentation

File units : kg-m**2/s 1. The tabulated date corresponds to the midpoint of the 1-day-long averaging interval.

2. The mean has been removed from the tabulated OAM values.
The mean OAM mass term (kg-m**2/s; x,y,z) = 1.35701772E+29 1.02514762E+29 2.93920693E+30
The mean OAM motion term (kg-m**2/s; x,y,z) = -1.05234946E+24 6.09465573E+23 9.85695694E+24

Time Interval

1-day averages
Time Start

1980-01-02
Time End

2002-03-31
Data Points

8125
Data

MJD, mass_X, mass_Y, mass_Z, motion_X, motion_Y, motion_Z
Format

ASCII
Frequency

Irregular
Keywords

Geophysical fluids, OAM
Reference

Gross et al., Atmospheric and Oceanic Excitation of the Earth's Wobbles
During 1980-2000, J. Geophys. Res., 108(B8), doi: 10.1029/2002JB002143, 2003
Gross et al., Atmospheric and Oceanic Excitation of Length-of-Day Variations
During 1980-2000, J. Geophys. Res., in press, 2003
Published by

GGFC Special Bureau for the Oceans
Contact

Richard.Gross@jpl.nasa.gov
Distribution

onLine
Source

ftp://rz-ftp2.gfz.de/2025012844000415-esmdata/Products/GGFC-Oceans/OAM/c20010701.oam