Hello,
I created netcdf file to store and vizualize radar rainfall data (time serie).
Radar data is store in two-dimensional matrix with X and Y axis corresponding
to Lambert Conformal Conic projection.
I have created all data axis (Lambert Conformal Conic coordinates) and stored
them in one-dimensional matrix.
I can vizualize it thanks to ncBrowse software.
However, in using Panoply software, I can't vizualize it. I can read on
http://www.giss.nasa.gov/tools/panoply/help/ref_datafiles.html
"Lambert conformal conic: Panoply recognizes a Lambert conformal conic
data..."
Is it necessary to create data axis in longitude/latitude based on the LCC
coordinates ? Is correspondance performed automatically ?
This is the corresponding CDL:
netCDF file "pluie2.nc"
--------
netcdf file:/home/vincent/pluie2.nc {
dimensions:
Date = UNLIMITED; // (3 currently) // (has coord.var)
x = 50; // (has coord.var)
y = 50; // (has coord.var)
variables:
int Lambert_Conformal;
:grid_mapping_name = "lambert_conformal_conic";
:standard_parallel = 43.20317, 44.99683; // double
:longitude_of_central_meridian = 2.337229; // double
:latitude_of_projection_origin = 44.1; // double
:false_easting = 600000.0; // double
:false_northing = 3200000.0; // double
:_CoordinateTransformType = "Projection";
:_CoordinateSystems = "ProjectionCoordinateSystem";
:_CoordinateAxes = "y x";
double pluie(Date=3, x=50, y=50);
:units = "mm";
:long_name = "Cumul de pluie sur 5 minutes";
:coordinates = "lat lon";
:grid_mapping = "Lambert_Conformal";
:_CoordinateSystems = "ProjectionCoordinateSystem
LatLonCoordinateSystem";
char LatLonCoordinateSystem;
:_CoordinateAxes = "Date lat lon";
char ProjectionCoordinateSystem;
:_CoordinateAxes = "Date x y";
:_CoordinateTransforms = "LambertConformalProjection";
double x(x=50);
:units = "km";
:long_name = "x coordinate of projection";
:standard_name = "projection_x_coordinate";
:_CoordinateAxisType = "GeoX";
double y(y=50);
:units = "km";
:long_name = "y coordinate of projection";
:standard_name = "projection_y_coordinate";
:_CoordinateAxisType = "GeoY";
double lat(x=50, y=50);
:units = "degrees_north";
:long_name = "latitude";
:standard_name = "latitude";
:_CoordinateAxisType = "Lat";
double lon(x=50, y=50);
:units = "degrees_east";
:long_name = "longitude";
:standard_name = "longitude";
:_CoordinateAxisType = "Lon";
double Date(Date=3);
:long_name = "Date et heure de l'image Radar";
:units = "seconds since 1970-01-01 01:00:00";
:axis = "T";
:_CoordinateAxisType = "Time";
:X0 = 742.7; // double
:Y0 = 3232.1; // double
}
Thanks a lot for your help.
--
THIERION Vincent
Eleve-chercheur
LGEI - Ecole des Mines d'Alès
Tel : 04-66-78-27-62
Mail : vincent.thierion@xxxxxx
