- SOCCOM Modeling Plan
- What is an Earth System Model (ESM)?
- Observing System Simulation Experiments (OSSEs)
- Carbon System Algorithm
- Biogeochemical Southern Ocean State Estimate
- Model Assessment Projects
- Climate Model Metrics
- Wind Sensitivity Experiments
- Southern Ocean Model Intercomparison Project (SOMIP)
- Ocean & Climate Model Discovery Environment
Error message
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We trained an empirical model to predict carbon system parameters from measured temperature, oxygen, salinity, pressure, and nitrate using data from P16S 2014 and S04P 2011 between 0 and 2100 m south of 45°S. We have applied these algorithms to floats in the Pacific Sector and evaluated the measured vs. the algorithm-predicted pH.
For example:
pHN = β0 + β1*S + β2*T + β3*P + β4*N
pHOx = β0 + β1*S + β2*T + β3*P + β4*O2
| Target Variable | Predictor Variables | R2 | rmse |
| pHN (pH units) |
Salinity Temperature Pressure Nitrate |
0.981 | 0.010 |
| pHOk (pH units) |
Salinity Temperature Pressure Oxygen |
0.964 | 0.008 |
| DIC (µmol/kg) |
Salinity Temperature Oxygen |
0.998 | 2.55 |
| TA (µmol/kg) |
Salinity Temperature Oxygen Sigma Theta |
0.987 | 3.5 |
| ΩAr (no units) |
Salinity |
0.993 | 0.024 |