The file RossSea_nutrients.nc is a netCDF file containing monthly
gridded climatologies of nitrate, silicate and chlorophyll for an
area around the Ross Sea for the months of November, December, January
and February.  Details on how the climatologies where created can be 
found in Smith et al., 2003.  The climatologies are gridded on the 
same one degree horizontal grid as the World Ocean Atlas 2001 (WOA01)
and cover the area, Longitude: 155.5E - 220.5E, Latitude: 79.5S - 59.5S.
They are on the same 33 vertical depth levels as the WOA01 and use the
same land mask.  The defined variables are:

'X' - grid latitude
'Y' - grid longitude
'Z' - grid depth values (m)
'T' - time (months).  Four values: 10.5, 11.5, 0.5, 1.5
'silicate' - Gridded silicate array (micromole/liter).  4-d grid (X,Y,Z,T)
'nitrate' - Gridded nitrate array (micromole/liter).
'chlorophyll' - Gridded chlorophyll array (microgram/liter).

Contact:

Mike Dinniman
Center for Coastal Physical Oceanography
Old Dominion University
757 683-5559
msd@ccpo.odu.edu


Reference:

Smith, W.O., Jr., M.S. Dinniman, J.M. Klinck and E.E. Hofmann, 2003.
Biogeochemical Climatologies of the Ross Sea, Antarctica.
Deep-Sea Research II, in press.