IOW Logo

Experiment Atlantic Zoo 188

 

General Information

 

Purpose of the Experiment

The purpose of the experiment is simulation of the nitrogen cycle in the Atlantic eastern boundary currents. It repeats [[Model.ZoO_88][atlantic_genus_9_zoo 88]]. Only a few variables are written, but with high frequency.

 

Area and time coverage

  • regional model: 10°W - 18°E, 33°S - 8°N
  • initialisation time: 1999,07,20,0,0,0
  • first output time stamp: 2003.12.26
  • last output time stamp: 2005.01.19

 

Specific information

The model is integrated over about 10 model years. Important parameterisations:

  • positive mdfl swebe advection
  • kpp vertical mixing scheme
  • additional passive model tracer
  • Manizza shortwave radiation scheme - chlorophyll from ecosystem dynamics
  • wave model and resuspension of sediments enabled
  • tidal mixing switched on
  • the sea level air pressure does not act onto the ocean

 

Specific namelist setup

 

Atmospheric forcing and OBC

 

  • Data.QuikSCAT daily winds combined with ERA 6-hourly data
  • ERA interim amosphere temperature, pressure and humidity for heat flux and moisture flux calculation, ERA precipitation
  • ERA interim clouds for short wave radiation
  • baroclinic OBC: 10 day temperature and salinity from ECCO simulations
  • barotropic OBC: 12 hourly sea level from ECCO simulations

 

Known errors and shortcomings and corrections

 

  • zmax_pen=800 in ocean_shortwave_gfdl_nml is changed to zmax_pen=1800
  • dn_sed=0.001 in genus_nml is changed to dn_sed=0.002
  • frac_dn_anoxic=0.3 in genus_nml does not exist any more. Default is 1

 

Configuration files

 

  • [[%ATTACHURL%/input.nml][input.nml]]: input.nml
  • [[%ATTACHURL%/data_table][data_table]]: data_table
  • [[%ATTACHURL%/field_table][field_table]]: field_table
  • [[%ATTACHURL%/diag_table][diag_table]]: diag_table

 

Output Variables

xu_ocean ucell longitude
yu_ocean ucell latitude
time time
nv vertex number
xt_ocean tcell longitude
yt_ocean tcell latitude
st_ocean tcell zstar depth
st_edges_ocean tcell zstar depth edges
sw_ocean ucell zstar depth
sw_edges_ocean ucell zstar depth edges
drag_coeff Dimensionless bottom drag coefficient
geolon_t tracer longitude
geolat_t tracer latitude
geolon_c uv longitude
geolat_c uv latitude
area_t tracer cell area
area_u velocity cell area
ht ocean depth on t-cells
hu ocean depth on u-cells
dzt t-cell thickness
eta_t surface height on T cells [Boussinesq (volume conserving) model]
eta_u surface height on U cells
eta_t_bar surface height on T cells averaged over bar loop
mld mixed layer depth determined by density criteria
hblt T-cell boundary layer depth from KPP
urhod depth and density weighted u
vrhod depth and density weighted v
runoff mass flux of liquid river runoff entering ocean
windx_wave zonal wind speed for waves
windy_wave meridional wind speed for waves
xmom zonal wave momentum
ymom meridional wave momentum
height significant wave height
wave_p peak frequency
wave_k wave number
wave_s wave skin friction velocity
wave_u wave friction velocity
temp Potential temperature
salt Practical Salinity
u i-current
v j-current
wrhot rho*dia-surface velocity T-points
average_T1 Start time for average period
average_T2 End time for average period
average_DT Length of average period
time_bounds time axis boundaries

 

 

Storage of the results

PERM at HLRN IOW storage THREDDS
No /silod2/models/south_atlantic/atlantic_genus_10_era/workdir_188/ http://phy-4:8080/thredds/genus/catalog_era_run188.html

 

 

-- Main.MartinSchmidt - 2014-08-21