Tropical Pacific Ocean State Estimation
A regional setup of the MIT general circulation model (MITgcm) is constrained
to fit data from the Tropical Pacific Observing System (TPOS; http://tpos2020.org).
Data assimilation is accomplished iteratively through the adjoint method, resulting
in a physically-realistic estimate of the ocean state. For more information see
Verdy, Cornuelle, Mazloff, and Rudnick, 2017: Estimation of the Tropical Pacific Ocean State 2010-2013. J. Atmos. Oceanic Technol., 34, 1501-1517
Results
We have produced a state estimate for the period 2010-2018. The output is publicly available (please cite appropriately). Some fields can be obtained by clicking on the links below; for additional diagnostics, please do not hesitate to contact us directly.
- SST: animation 2010-2017, 28.5 degree contour animation 2016-2017, 28.5 degree contour animation 2010-2017 [note: animations show satellite observations on top and state estimate at the bottom]
- SSH: animation 2015-2017, animation 2010-2017 [note: animations show AVISO product on top and state estimate at the bottom]
- Validation: model-observations comparison
Download files in netcdf format:
- SSH, daily: 2010 to 2019
- SST, daily: 2010 to 2019
- Potential temperature, monthly: 2010 to 2019
- Potential temperature, 5-day averages: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Potential temperature, daily: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Salinity, monthly: 2010 to 2019
- Salinity, 5-day averages: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Salinity, daily: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Zonal velocity, monthly: 2010 to 2019
- Zonal velocity, 5-day averages: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Zonal velocity, daily: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Meridional velocity, monthly: 2010 to 2019
- Meridional velocity, 5-day averages: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Meridional velocity,daily: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
- Vertical velocity (missing 2010-2014), monthly: 2015 to 2019
- Vertical velocity (missing 2010-2014), 5-day averages:
2015, 2016, 2017, 2018, 2019
- Vertical velocity (missing 2010-2014), daily:
2015, 2016, 2017, 2018, 2019
Citation
When using this state estimate please cite: Verdy, Cornuelle, Mazloff, and Rudnick, 2017: Estimation of the Tropical Pacific Ocean State 2010-2013. J. Atmos. Oceanic Technol., 34, 1501-1517
Contact
Ariane Verdy, Bruce Cornuelle
|