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Re: [ferret_users] unknown model resolution in the vertical



Hi
original file i.e. in native grid dumps

netcdf vozocrtx_fa9p_1m_2001_grid_U {
dimensions:
    t = UNLIMITED ; // (12 currently)
    z = 42 ;
    y = 292 ;
    x = 362 ;

variables:
    long time_counter(t) ;
    float vozocrtx(t, z, y, x) ;
        vozocrtx:_FillValue = 9.96921e+36f ;
        vozocrtx:coordinates = "time_counter depthu u_lat u_lon" ;
        vozocrtx:long_name = "Zonal Current" ;
        vozocrtx:offline_operation = "monthly mean" ;
        vozocrtx:units = "m/s" ;
    double depthu(z) ;
    float u_lat(y, x) ;
    float u_lon(y, x) ;
    byte umask(z, y, x) ;


After curv_to_rect, new file dumps

dimensions:
    XAX = 91 ;
    YAX = 76 ;
    Z = 42 ;
    T = UNLIMITED ; // (12 currently)

variables:
    double XAX(XAX) ;
        XAX:units = "degrees_east" ;
        XAX:point_spacing = "even" ;
        XAX:axis = "X" ;
        XAX:modulo = 360. ;
        XAX:standard_name = "longitude" ;
    double YAX(YAX) ;
        YAX:units = "degrees_north" ;
        YAX:point_spacing = "even" ;
        YAX:axis = "Y" ;
        YAX:standard_name = "latitude" ;
    double Z(Z) ;
        Z:point_spacing = "even" ;
        Z:axis = "Z" ;
        Z:standard_name = "altitude" ;
    double T(T) ;
        T:axis = "T" ;
        T:standard_name = "time" ;
    double U1(T, Z, YAX, XAX) ;
        U1:missing_value = -9.999999999999999e+33 ;
        U1:_FillValue = -9.999999999999999e+33 ;
        U1:long_name = "CURV_TO_RECT(U[D=1], MAP[D=2])" ;

with z values

 Z = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
    21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
    39, 40, 41, 42 ;



greetings
Arijeet

On Mon, Mar 13, 2017 at 8:12 PM, Martin Schmidt <martin.schmidt@xxxxxxxxxxxxxxxxx> wrote:
Difficult to say. Please inspect your data with
ncdump -h

This shous you the header section of your data set, especially the coordinate axes and how the varaibles depend on them.
Best,
Martin


On 03/13/2017 02:28 PM, Arijeet Dutta wrote:
Hi all
I have data (ftp://ftp.icdc.zmaw.de/EASYInit/NEMOVAR/) which are in a tripolar native model grid, I am able to interpolate it to regular latlon grid using curv_to_rect. The problem is it has 42 vertical levels and all I know is 15 of which are in upper 200m. Any idea how I can get depth values from it?

greetings,
Arijeet




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