[gradsusr] reading in a netCDF file...ncdump

[joseph.pollina at noaa.gov]

The following is the output when I ncdump the netCDF file:
dimensions:
        y = 277 ;
        x = 349 ;
        level = 29 ;
        time = UNLIMITED ; // (1 currently)
variables:
        float level(level) ;
                level:units = "millibar" ;
                level:actual_range = 1000.f, 100.f ;
                level:long_name = "Level" ;
                level:positive = "down" ;
                level:GRIB_id = 100s ;
                level:GRIB_name = "hPa" ;
                level:axis = "Z" ;
                level:coordinate_defines = "point" ;
        float lat(y, x) ;
                lat:long_name = "latitude" ;
                lat:units = "degrees_north" ;
                lat:standard_name = "latitude" ;
                lat:axis = "Y" ;
                lat:coordinate_defines = "point" ;
        float lon(y, x) ;
                lon:units = "degrees_east" ;
                lon:long_name = "longitude" ;
                lon:standard_name = "longitude" ;
                lon:axis = "X" ;
                lon:coordinate_defines = "point" ;
        double time(time) ;
                time:units = "hours since 1800-1-1 00:00:0.0" ;
                time:long_name = "time" ;
                time:actual_range = 1569072., 1569069. ;
                time:delta_t = "0000-00-00 03:00:00" ;
                time:standard_name = "time" ;
                time:axis = "T" ;
                time:coordinate_defines = "point" ;
        float xdist(x) ;
                xdist:long_name = "eastward distance from southwest corner of domain in projection coordinates" ;
                xdist:units = "m" ;
        float ydist(y) ;
                ydist:long_name = "northward distance from southwest corner of domain in projection coordinates" ;
                ydist:units = "m" ;
        float mslet(time, level, y, x) ;
                mslet:long_name = "Mean Sea Level (ETA model) Pressure          " ;
                mslet:valid_range = -9.e+16f, 9.e+16f ;
                mslet:actual_range = -9.e+15f, 9.e+15f ;
                mslet:units = "Pa" ;
                mslet:missing_value = -9.96921e+36f ;
                mslet:_FillValue = -32767.f ;
                mslet:precision = 2s ;
                mslet:least_significant_digit = 1s ;
                mslet:var_desc = "Mean Sea Level (ETA model) Pressure          " ;
                mslet:dataset = "NARR" ;
                mslet:level_desc = "È^Ô\räô·)º¼ä¤ô·Lf¼£Éã\b" ;
                mslet:statistic = "Composite" ;
                mslet:parent_stat = "Other" ;
                mslet:standard_name = "Default" ;
        int Lambert_Conformal ;
                Lambert_Conformal:grid_mapping_name = "lambert_conformal_conic" ;
                Lambert_Conformal:standard_parallel = 50., 50. ;
                Lambert_Conformal:longitude_of_central_meridian = -107. ;
                Lambert_Conformal:latitude_of_projection_origin = 50. ;
                Lambert_Conformal:false_easting = 5632642.22547 ;
                Lambert_Conformal:false_northing = 4612545.65137 ;
// global attributes:
                :Conventions = "CF-1.0" ;
                :title = "Composite Value" ;
                :history = "dummy file: created in web ap" ;
                :comments = "Data is from North American Regional Reanalysis\n",
                        "(8x/day).  It consists of most variables interpolated to\n",
                        "pressure surfaces from model (sigma) surfaces." ;
                :institution = "National Centers for Environmental Prediction" ;
                :platform = "Model" ;
                :references = "http://wwwt.emc.ncep.noaa.gov/mmb/rreanl/index.html\n",
                        "http://www.esrl.noaa.gov/psd/data/gridded/data.narr.html" ;
                :description = "Computed from the web page http://www.esrl.noaa.gov/psd/narr/ at NOAA/ESRL PSD: monthly mean composite" ;
data:
 level = 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700, 
    650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 
    125, 100 ;
 time = 51080.1711899228 ;
}

Joe

----- Original Message -----
From: <joseph.pollina at noaa.gov>
Date: Friday, March 12, 2010 2:53 pm
Subject: reading in a netCDF file from NARR 
> I have been trying to read in a netCDF file that was creasted 
> using the NARR monthly composite site.  I've tried sdfopen and I 
> tried using xdfopen with a descriptor file, however, I'm not sure 
> if I configured the descriptor file correctly.  I've even tried 
> the narropen.gs script on the script library page, but again, not 
> sure if I am inputting the correct variables.  I was wondering if 
> anyone has any clue as to how to get this file open.  
> Also, for some reason, sdfopen and xdfopen is not recognized as a 
> command in grads.2.0.a7.1...at least at school, but xdfopen seems 
> to work ok at my office at work, not sure why that would be as 
> well (they are both the same versions). 
> Any help would be GREATLY appreciated. 
> Joe 
> 
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