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[ferret_users] Are there changes to @DIN transformation in new FERRET v6.64?



Hi, 

We recently upgraded our old FERRET v6.1 to the new v6.64 on a Dell M905 blade server running Suse Linux Enterprise Server 11, with the executables "64-bit Linux  v6.6.4 Linked with NetCDF-4 libraries" downloaded from the FERRET website. 

There was an unexpected change to the volume transport calculation: I used to get m^3 in my transport calculation, and by dividing by 10^6, I would get transport in Sv. Now when I run the same program, the unit seems to be no longer in m^3. What has changed?

Here is an example:

Vortex> ferret
        NOAA/PMEL TMAP
        FERRET v6.64
        Linux(gfortran) 2.6.9-89.0.20.ELsmp - 09/16/10
        22-Nov-10 12:28

yes? use uvw.relax.05.clim.2065-2085.nc
yes? show data
     currently SET data sets:
    1> ./uvw.relax.05.clim.2065-2085.nc  (default)
 name     title                             I         J         K         L
 U        zonal current                    1:1191    1:968     1:47      1:1
 V        meridional current               1:1191    1:968     1:47      1:1
 WT       vertical velocity T-points       1:1191    1:968     1:47      1:1
 AVERAGE_T1
          Start time for average period    ...       ...       ...       1:1
 AVERAGE_T2
          End time for average period      ...       ...       ...       1:1
 AVERAGE_DT
          Length of average period         ...       ...       ...       1:1

yes? list v[x=113.5:116@din,y=-32,z=0:200@din]
             VARIABLE : meridional current (m/sec)
             DATA SET : OFAM Mk3.5 A1B Relax
             FILENAME : uvw.relax.05.clim.2065-2085.nc
             LONGITUDE: 113.5E to 116E (XZ integ.)
             LATITUDE : 32S
             DEPTH (m): 0 to 200 (XZ integ.)
             TIME     : 01-MAY-2065 12:00 NOLEAP
         -2616.

Question: what is the unit of this transport value of -196.3?

Please note: by manual calculation, I should get about -4 Sv.

Regards, 
Chaojiao





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