Re: [netcdf-java] "no gridded fields in file"

• To: netcdf-java@xxxxxxxxxxxxxxxx
• Subject: Re: [netcdf-java] "no gridded fields in file"
• From: John Caron <caron@xxxxxxxxxxxxxxxx>
• Date: Wed, 23 Mar 2011 10:13:52 -0600

yes, thats right

thanks, Jon, for spotting that.

On 3/23/2011 12:56 AM, Jon Blower wrote:

Hi John,

You need a "positive" attribute on your vertical axis, e.g. "positive: up".  
Vertical axes are recognised either by the presence of this attribute or by units of pressure.

HTH,
Jon

-----Original Message-----
From: John.C.Cartwright@xxxxxxxx
Sent:  23/03/2011, 3:14  am
To: netcdf-java@xxxxxxxxxxxxxxxx
Subject: [netcdf-java] "no gridded fields in file"


Hello All,

I'm sure that I'm overlooking something simple, but I'm not seeing why the grid 
described
below is not recognized as a grid by NetCDF Tools (4.2).  Can someone please 
point out the
problem?

Thanks!

--john


netcdf pres_temp_4D {
dimensions:
         lat = 6 ;
         lon = 12 ;
         elev = 2 ;
         time = UNLIMITED ; // (2 currently)
variables:
         double lon(lon) ;
                 lon:units = "degrees_east" ;
                 lon:standard_name = "longitude" ;
                 lon:long_name = "longitude" ;
         float elev(elev) ;
                 elev:units = "meters" ;
         double lat(lat) ;
                 lat:units = "degrees_north" ;
                 lat:long_name = "latitude" ;
                 lat:standard_name = "latitude" ;
         float time(time) ;
                 time:units = "days since 1970-01-01 00:00:00" ;
         float pressure(time, elev, lat, lon) ;
                 pressure:units = "hPa" ;
         float temperature(time, elev, lat, lon) ;
                 temperature:units = "celsius" ;

// global attributes:
                 :Conventions = "CF-1.0" ;
data:

  lon = -125, -120, -115, -110, -105, -100, -95, -90, -85, -80, -75, -70 ;

  elev = 100, 200 ;

  lat = 25, 30, 35, 40, 45, 50 ;

  time = 1, 2 ;

  pressure =
   900, 901, 902, 903, 904, 905, 906, 907, 908, 909, 910, 911,
   912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923,
   924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, 935,
   936, 937, 938, 939, 940, 941, 942, 943, 944, 945, 946, 947,
   948, 949, 950, 951, 952, 953, 954, 955, 956, 957, 958, 959,
   960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 970, 971,
   972, 973, 974, 975, 976, 977, 978, 979, 980, 981, 982, 983,
   984, 985, 986, 987, 988, 989, 990, 991, 992, 993, 994, 995,
   996, 997, 998, 999, 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007,
   1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019,
   1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031,
   1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043,
   900, 901, 902, 903, 904, 905, 906, 907, 908, 909, 910, 911,
   912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923,
   924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, 935,
   936, 937, 938, 939, 940, 941, 942, 943, 944, 945, 946, 947,
   948, 949, 950, 951, 952, 953, 954, 955, 956, 957, 958, 959,
   960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 970, 971,
   972, 973, 974, 975, 976, 977, 978, 979, 980, 981, 982, 983,
   984, 985, 986, 987, 988, 989, 990, 991, 992, 993, 994, 995,
   996, 997, 998, 999, 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007,
   1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019,
   1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031,
   1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043 ;

  temperature =
   9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
   21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32,
   33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
   45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
   57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68,
   69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80,
   81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92,
   93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
   105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116,
   117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128,
   129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140,
   141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152,
   9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
   21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32,
   33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
   45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
   57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68,
   69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80,
   81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92,
   93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
   105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116,
   117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128,
   129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140,
   141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152 ;
}

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• References:
  • [netcdf-java] "no gridded fields in file"
    • From: John . C . Cartwright
  • Re: [netcdf-java] "no gridded fields in file"
    • From: Jon Blower