[ferret_users] netcdf reading

[Namba Takaya <takayanamba@xxxxxxxxxxx>]

Dear Sir

I have the netcdf like 

ncdump -h 19930101.nc

netcdf \19930101 {

dimensions:

longitude = 801 ;

latitude = 251 ;

day = 101 ;

variables:

float xlongitude(longitude, latitude, day) ;

xlongitude:units = "degrees_north" ;

float ylatitude(longitude, latitude, day) ;

ylatitude:units = "degrees_east" ;

float temperature(longit