Non-Tidal Ocean Angular Momentum
Non-Tidal ocean angular momentum (OAM) time-series as separated into the contributions of the pressure distribution (matter terms) and horizontal ocean transports (motion terms) are provided for a range of different numerical ocean model experiments that include both unconstrained simulations and ocean state estimates. OAM can be linearly transformed into non-tidal ocean excitation functions as described by Gross (2009).
Operational Series
| Name | Ocean Model | Data Span | Resolution | Latency | Comments |
|---|---|---|---|---|---|
| ESMGFZ v1.0 | MPIOM RL06 | 1976 to present | 3 hours | 1 day | IB removed Reference |
All operational EAM products from ESMGFZ including 10-day forecasts are available here.
Latest Ocean Model Experiments
| Name | Ocean Model | Data Span | Resolution | Comments |
|---|---|---|---|---|
| ESMGFZ v2.0 | MPIOM RL07 | 1960 - 2025 | 3 hours | IB removed Reference |
| ECCO_v4 | MITgcm | 1992 - 2017 | 1 hour | r3 and r4b corrected in June 2021 |
Legacy Ocean Model Experiments
| Name | Ocean Model | Data Span | Resolution | Comments |
|---|---|---|---|---|
| ECCO_kf049f.oam | MITgcm | 1993 - 2006 | 1 day | - |
| ECCO_kf066a2.oam | MITgcm | 1993 - 2008 | 1 day | - |
| ECCO_kf066b.oam | MITgcm | 1993 - 2008 | 1 day | - |
| ECCO_kf079.oam | MITgcm | 1993 - 2020 | 1 day | - |
| ECCO_kf080i.oam | MITgcm | 1993 - 2020 | 1 day | - |
| MITgcm_LLC540_UBonn.oam | MITgcm | 2007 - 2011 | 1 day | IB removed Reference |
| ECCO_50yr.oam | MITgcm | 1949 - 2002 | 10 days | - |
| johnson01.oam | POCM_4B | 1988 - 1997 | 3 days | - |
| c20010701.oam | MITgcm | 1980 - 2002 | 1 day | - |
| ponte98.oam | MITgcm | 1985 - 1996 | 5 days | - |
| Name | Ocean Model | Data Span | Resolution | Comments |
|---|---|---|---|---|
| c20010701.chi | MITgcm | 1980 - 2002 | 1 day | - |
| ECCO_50yr.chi | MITgcm | 1949 - 2002 | 10 days | - |
| ECCO_kf066a2.chi | MITgcm | 1993 - 2008 | 1 day | - |
| ECCO_kf066b.chi | MITgcm | 1993 - 2008 | 1 day | - |
| ECCO_kf079.chi | MITgcm | 1993 - 2020 | 1 day | - |
| ECCO_kf080i.chi | MITgcm | 1993 - 2020 | 1 day | - |
All available experiments can be downloaded here.
*IB: Bottom pressure variations due to the inverse barometric effect are removed.
Gross, R. S. (2009), Earth Rotation Variations -- Long Period, In: Herring, T. (ed.), Treatise on Geophysics, Volume 3: Geodesy, p. 239-294, Elsevier, Amsterdam.
Contact
Dr. Henryk Dobslaw
Earth System Modelling
Telegrafenberg
Building A20, room 316
14473 Potsdam
tel. +49 331 288-1974