ticket: 1426

development code: https://forge.ipsl.jussieu.fr/nemo/browser/branches/2015/dev_r5003_MERCATOR6_CRS

1.How activting coarsening ?

see readme file

2. Building input files

2.1 TOP input files: passive tracers initial conditions

interpolated on 1 degree regular grid; source: ???? Coralie ?

use interpolation-on-the-fly: weight files computed for 1°-Regular grid to eORCA025 and eORCA075. need to put them on shaconemo ( CBR )

2.2 PISCES input files:

2.2.1 build river files for PISCES when using coarsening

1. output ocean dynamic runoff in a netcdf file at 0.25° resolution with XIOS and coarsene it 'offline' with offline coarsening tools
   

or
output ocean dynamic runoff in a netcdf file at 0.75° resolution with XIO when coarsening is activated

2. collocalize 'BCG' runoff on this file at 0.75° resolution.
   

2.2.2 bathyfer et hydrofer

1. create bathyfer at 0.25° resolution
   

2. coarsene it 'offline' with offline coarsening tools
   

2.2.3 other

ndeposition, dust and solubility: need to be interpolated on model grid ( interpolation-on-the-fly not available ) need to put them on shaconemo ( CBR )