Product: Global Oceanic Angular Momentum
OAM - ECCO_v4r4_IBremoved_noFWF - Version metadata

Available downloads

Title

OAM - ECCO_v4r4_IBremoved_noFWF
Date

2020-08-12
Volume

ECCO_v4r4_IBremoved_noFWF
Content

Global oceanic angular momentum mass and motion terms, and total ocean mass (includes effects of sea ice); mass term based on sea level with inverted barometer (IB) signal removed
Ocean model : ECCO Version 4 Release 4 (based on MITgcm)
Horizontal domain : Global
Horizontal resolution : Variable spacing ranging from 22 km to 111 km (see Forget et al. 2015, section 2)
Vertical resolution : 50 levels ranging in thickness from 10 m at surface to 460 m at depth
Boussinesq model? : Yes
Tabulated mass term corrected for volume changes due to steric effects? : Yes
Does not include mass effects from net real freshwater flux

Ocean model forcing : 6-hourly ERA-Interim values adjusted by optimization (see Forget et al. 2015, section 3.5); atmospheric surface pressure included but not adjusted by optimization (see Fukumori et al. 2019)

Data assimilated : sea level altimetry, in situ temperature/salinity, satellite SST/SSS, bottom pressure, sea-ice concentration (see Fukumori et al. 2019)

Documentation

File units : kg-m**2/s for OAM, kg for mass The mean has been removed from the tabulated OAM and mass values.
The mean OAM mass term (kg-m**2/s; x,y,z) = 1.35447015E+29 1.04772078E+29 2.92758581E+30
The mean OAM motion term (kg-m**2/s; x,y,z) = -9.05105808E+23 9.38062199E+23 1.18721691E+25
The mean total ocean mass (kg) = 1.37371282E+21

Time Interval

hourly
Time Start

1992-01-01
Time End

2017-12-31
Data Points

210359
Data

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

ASCII
Frequency

Irregular
Keywords

Geophysical fluids, OAM
Reference

Forget et al. 2015, doi:10.5194/gmd-8-3071-2015
Published by

GGFC Special Bureau for the Oceans
Contact

rponte@aer.com
Distribution

onLine
Source

ftp://ig2-dmz.gfz-potsdam.de/GGFC-Oceans/OAM/ECCO_v4r4_IBremoved_noFWF.oam