[ferret_users] regarding sigma coordinates on depth axis

[saurabh rathore <rohitsrb2020@xxxxxxxxx>]

Dear Ferreters,

I am facing a problem in converting the depth axis from sigma coordinates to the "meter" axis. The formula that is provided in the model output is shown below.

double lev(lev) ;
lev:long_name = "ocean sigma coordinate" ;
lev:positive = "up" ;
lev:axis = "Z" ;
lev:bounds = "lev_bnds" ;
lev:formula = "z(n,k,j,i) = eta(n,j,i) + sigma(k)*(depth(j,i)+eta(n,j,i))" ;    !!!!!    formula    !!!!!

the structure of the file is as follows

name     title                                                        I         J         K              L         M         N
 ETA      Sea Surface Height                              1:360     1:180     ...        1:6000    ...       ...
 DEPTH    Sea Floor Depth                                1