read variable lon and lat in group larvae in netcdf4 a.nc

I want to read the lat and lon in the group larvae. Is there a way to read this with the buildin function ncread? A ncdump -h of the file a.nc is

ncdump -h a.nc 
netcdf a {
dimensions:
  lat = 335 ;
  lon = 115 ;
  level = 9 ;
variables:
  float latitudes(lat, lon) ;
  float longitudes(lat, lon) ;

// global attributes:
    :grid_dimensions = 335L, 115L, 9L ;

group: ocean {
  dimensions:
    time = UNLIMITED ; // (1 currently)
    reltime = 1 ;
  variables:
    int model_time(time, reltime) ;
    float u_velocity(time, level, lat, lon) ;
    float v_velocity(time, level, lat, lon) ;
    float w_velocity(time, level, lat, lon) ;
    float temperature(time, level, lat, lon) ;
    float salinity(time, level, lat, lon) ;

    // group attributes:
        :time_step = 360L ;
        :step = 1L ;
    } // group ocean

group: larvae {
  dimensions:
    time = UNLIMITED ; // (1 currently)
    reltime = 1 ;
    npart = 441 ;
  variables:
    int model_time(time, reltime) ;
    float lat(time, npart) ;
    float lon(time, npart) ;
    float depth(time, npart) ;
    float total_body_burden(time, npart) ;
    float mortality(time, npart) ;
    float size(time, npart) ;
    float weight(time, npart) ;

    // group attributes:
        :step = 1L ;
    } // group larvae
  }

[Ashish Uthama]

EDIT: Added 'code' markup to ncdump output.

[Ashish Uthama]

Also, you could try using NCDISP in MATLAB to get similar output as ncdump.

Answer 1

[AJ von Alt]

You can read a variable 'variablename' in a group '/groupname/' using '/groupname/variablename' as the argument for the varname field in the function ncread.

This code should produce the desired results for an input file 'ncfilename.nc':

    lat = ncread( 'ncfilename.nc' , '/larvae/lat')