This directory contains the suite of model simualtions based on MOM4p0d (GFDL Modular Ocean Model v.4, Griffies 
et al., 2005) described in

Dietze & Kriest (2012), 137-Cs off Fukushima Dai-ichi, Japan - model based estimates of dilution and fate,
Ocean Sci., 8, 319-332, 2012, doi:10.5194/os-8-319-2012.

Note that D & K (2012) is available here; named Dietze_Kriest_2012.pdf


In a nut-shell:
D & K (2012) present results from an ocean circulation model driven with ECMWF forcing resembling the period 
1993 to 1999. By comparing sea surface height patterns observed from space in April 2011 with those simulated, 
D & K (2012) conclude that the simulated conditions in 1993 and 1996 are similar to those observed in April 2011, 
while the nominal years 1994 1995 and 1997 are not. In all simulations a total of 2.3x10^15 Bq 137-Cs is released 
at once into one grid-box off Fukushima.


In total 6 numerical 137-Cs tracer release experiments are described in the above-mentioned publication and
archived here:
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
| directory name     |                    |                                | similar to actual conditions in 2011  |                                                  |
| containing model   | Bq 137-Cs released | time of release (nominal date) | as judged based on SSH by D & K (2012)| initial conditions in directory model/restarts   |
| output             |                    |                                | (e.g., their figure 6.)               |                                                  | 
|------------------------------------------------------------------------------------------------------------------|--------------------------------------------------|
| 137cs/1_april_1993 |    2.3x10^15       |      1st of April 1993         |              yes                      | 137Csrelease_1_april_1993_initial_conditions.zip |
| 137cs/1_april_1994 |    2.3x10^15       |      1st of April 1994         |              no                       | 137Csrelease_1_april_1994_initial_conditions.zip |
| 137cs/1_april_1995 |    2.3x10^15       |      1st of April 1995         |              no                       | 137Csrelease_1_april_1995_initial_conditions.zip |
| 137cs/1_april_1996 |    2.3x10^15       |      1st of April 1996         |              yes                      | 137Csrelease_1_april_1996_initial_conditions.zip |
| 137cs/1_april_1997 |    2.3x10^15       |      1st of April 1997         |              no                       |           n.a. - file corrupted -                |
| 137cs/8_april_1993 |    2.3x10^15       |      8th of April 1993         |              yes                      | 137Csrelease_8_april_1993_initial_conditions.zip |
---------------------------------------------------------------------------------------------------------------------------------------------------------------------

The directory

 physics

contains corresponding temperature (physics/temp), salinity (physics/salt), zonal velocity (physics/u)
meridional velocity (physics/v), vertical velocity (physics/w) and sea surface height (physics/eta).


The directory

model

contains all that is needed to repeat the experiments, i.e., forcing, code, compile scripts, executables and restarts.