NetCDF question

Kobi Mosquera kobi at CHAVIN.IGP.GOB.PE
Fri May 12 16:45:59 EDT 2006


Hi GrADS users,

I have a technical question. I converted my data (time serie) to a NetCDF format and
this can be quasi-ingested by GrADS because when I type "q file" the output is:

X is fixed     Lon = 1  X = 1
Y is fixed     Lat = 1  Y = 1
Z is fixed     Lev = 0  Z = 1
T is fixed     Time = 05Z01APR2001  T = 1

In my NetCDF file I have defined the Latitude and Longitude as -5 and
-78, respectively.

Does anybody know what else is necessary to put in the attributes of
Latitude and Longitude that would be read successfully by GrADS?

Thanks a lot for your answer,

KOBI.

PS. The result of the ncdump command is:

============================================================
netcdf data_igp {
dimensions:
        time = 72 ;
        height = 1 ;
        lat = 1 ;
        lon = 1 ;
variables:
        float time(time) ;
                time:units = "hours since 2000-1-1 00:00:0.0 -5:00" ;
                time:long_name = "Time" ;
                time:delta_t = "0000-00-00 01:00:00" ;
                time:axis = "T" ;
        float height(height) ;
                height:actual_range = 0.f, 0.f ;
                height:units = "m " ;
                height:axis = "Z" ;
        float lat(lat) ;
                lat:actual_range = -5.f, -5.f ;
                lat:units = "degrees_north" ;
                lat:long_name = "Latitude" ;
                lat:axis = "Y" ;
        float lon(lon) ;
                lon:actual_range = -78.f, -78.f ;
                lon:units = "degrees_east" ;
                lon:long_name = "Longitude" ;
                lon:axis = "X" ;
        float temp_aire(time, height, lat, lon) ;
                temp_aire:name = "AT " ;
                temp_aire:long_name = "Temperatura del aire " ;
                temp_aire:units = "degC  " ;
                temp_aire:actual_range = 5.f, 50.f ;
                temp_aire:missing_value = -999.f ;

// global attributes:
                :Source = "Instituto Geofisico del Peru ( http://www.met.igp.gob.pe )" ;
                :File_info = "Contactar a Kobi MOsquera  kobi at chavin.igp.gob.pe " ;
                :title = "Temperatura del aire  en la estacion La Calurosa         " ;
                :description = "Temperatura del aire  de la estacion La
Calurosa         " ;
                :missing_value = -999.f ;
                :Convention = "COARDS" ;
}
=================================================


--------------------------------------------------------
Kobi A. Mosquera Vásquez
Centro de Predicción Numérica del Tiempo y Clima (CPNTC)
Instituto Geofísico del Perú (IGP)

Calle Badajoz N° 169 – 171
Urbanización Mayorazgo,IV Etapa
Lima 3 - Perú
Telefax (51) 1 3172326
http://www.met.igp.gob.pe
--------------------------------------------------------



More information about the gradsusr mailing list