Input NetCDF files for BIO_TOY test case

[arango]

Added grid, initial conditions, and forcing Netcdf files for the BIO_TOY test case. It includes initial conditions for BIO_FENNEL, ECOSIM, NEMURO, and all NPZD models (NPZD_FRANKS, NPZD_IRON, and NPZD_POWELL). All the NetCDF files are now under svn control and located in the Data/ROMS/Grid, Data/ROMS/Initial, and Data/ROMS/Forcing sub-directories, respectively.

• The grid is a 5x5 double periodic domain sampled from the North Esstern North Atlantic (NENA) application. The grid is:

  ROMS/Data/Grid/bio_toy_grd.nc
  

• There are several initial conditions files according to ecosystem model. The fields are horizontally uniform which render ROMS into 1D vertical model. These files are:

  ROMS/Data/Initial/bio_toy_ini_fennel.nc     BIO_FENNEL
  ROMS/Data/Initial/bio_toy_ini_ecosim.nc     ECOSIM
  ROMS/Data/Initial/bio_toy_ini_nemuro.nc     NEMURO
  ROMS/Data/Initial/bio_toy_ini_npzd.nc       any NPZD model
  

• The forcing data is from a typical year (days 0.5 to 364.5) ECMWF 40-year re-analysis. The time coordinate has the cycle_length attribute with a 365 value. Therefore, this application can be run for several year with a prepetual annual forcing cycle. This file is

  ROMS/Data/Forcing/bio_toy_frc.nc
  

The user may want to change a particular initial condition field to a desired value. It is very easy to copy any of these files to a new one and use any NetCDF program to change the field values.

• I also fixed few documentation typos. Many thanks to Kate Hedström and David Robertson for bringing this to my attention.

Many thanks to Cristina Schultz and John Wilkin for ​bringing this to my attention. I think that it is better to have these NetCDF files under svn control so we don't forget them in the future.