QG⚓︎
Quasi-geostraphic 2D flow. Described in detail by sakov2008b.
Adapted from Pavel Sakov's enkf-matlab package.
More info:
governing_eqn.pngdemo.py- ψ (psi) is the stream function (i.e. surface elevation)
- Doubling time "between 25 and 50"
- Note Sakov's trick of increasing RKH2 from 2.0e-12 to 2.0e-11 to stabilize
the ensemble integration, which may be necessary for EnKF's with small N.
See example in
counillon2009.
Modules:
| Name | Description |
|---|---|
LP |
On-line (live) plots of the DA process for various models and methods. |
counillon2009 |
Reproduce experiments from counillon2009a. |
demo |
Demonstrate the QG (quasi-geostrophic) model. |
f90 |
This dir contains the Fortran-90 code of the model. |
illust_obs |
Stream function and observation time series for QG (quasi-geostrophic) model. |
modelling |
Contains models included with DAPPER. |
sakov2008 |
Reproduce results from sakov2008b. |
model_config
⚓︎
Define model.
Helps ensure consistency between prms file (that Fortran module reads) and Python calls to step(), for example for dt.