Looking for help with netcdf input file...
Robert
midnight113355 at YAHOO.COM
Fri Mar 31 03:02:13 EST 2006
I have a netcdf input file that I am attempting to write a formatter for...
I have done everything I can to conform to the COARDS conventions, but I still get "Entire grid is undefined!"
or U is undefined...
when trying to plot the u;v components..
"cannot draw vector/barbs --- u field all undefined" <-- is the exact error...
Since I am relatively new to grads so perhaps I am missing something here.
The Netcdf files I am creating are to show windbarbs of specific stations and I am hoping to open multiple files to plot each of these data points in grads for each time stamp...
However, I have to get to the point of definition first...
I am including a small sample cdl output... any help would be greatly appreciated.
-- Robert Powell
/////
netcdf jeanShort.csv{
dimensions:
lon = 1 ;
lat = 1 ;
level = 30 ;
windspeed = 60 ;
winddir = 60 ;
time = UNLIMITED ; // Currently 2
variables:
double lon(lon) ;
lon:long_name = "longitude" ;
lon:units = "degrees_east" ;
double lat(lat) ;
lat:long_name = "latitude" ;
lat:units = "degrees_north" ;
double level(level) ;
level:units = "meters" ;
level:positive = "up" ;
double windspeed(windspeed) ;
windspeed:long_name = "wind speed in m/s" ;
windspeed:missing_value = -9999 ;
windspeed:units = "m s-1" ;
double winddir(winddir) ;
winddir:long_name = "wind direction in degrees north" ;
winddir:missing_value = -9999 ;
long time(time) ;
time:units = "hours since 1970-1-1 00:00:0.0" ;
time:long_name = "hours since 1970-1-1 00:00:0.0" ;
double u(time, level, lat, lon) ;
u:long_name = "u vector" ;
u:missing_value = -9999 ;
u:units = "m s-1" ;
double v(time, level, lat, lon) ;
v:long_name = "v vector" ;
v:missing_value = -9999 ;
v:units = "m s-1" ;
double pressure(time,level,lat,lon);
pressure:missing_value = -9999 ;
double o3(time, level, lat, lon) ;
o3:missing_value = -9999 ;
double temp(time, level, lat, lon) ;
temp:missing_value = -9999 ;
double rh(time, level, lat, lon) ;
rh:missing_value = -9999 ;
data:
lon = -115.3333 ;
lat = 35.7667 ;
level = 882,902,922,942,962,
982,1002,1022,1042,1062,
1082,1102,1122,1142,1162,
1182,1202,1222,1242,1262,
1282,1302,1322,1342,1362,
1382,1402,1422,1442,1462 ;
time = 310375,310376 ;
windspeed = -9999,5.12,8.1,9.13,7.54,
8.75,10.38,8.74,8.53,6.97,
8.18,7.93,8.67,10.24,7.84,
5.19,5.08,6.28,12.2,6.93,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,7.63,7.98,8.11,7.03,
8.21,7.09,7.91,6.66,8.12,
7.73,9.48,7.77,8.24,10.23,
8.03,8.38,12.16,8.05,9.71,
-9999,-9999,-9999,-9999,-9999,
-9999,17.48,-9999,-9999,-9999 ;
winddir = -9999,201,187,182,188,
216,209,203,204,196,
197,203,211,217,245,
257,274,246,232,295,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,175,173,183,182,
197,197,201,203,197,
209,199,218,239,225,
220,239,249,235,236,
-9999,-9999,-9999,-9999,-9999,
-9999,215,-9999,-9999,-9999 ;
u = -9999,1.83484148059513,0.9871378930745,0.318628220155604,1.04936164393189,
5.14311710445894,5.03231907677181,3.41498594747955,3.46945955953588,1.92118906085767,
2.39159666128098,3.0984941148184,4.46537615800657,6.16258136510406,7.10545100476382,
5.05697988013423,5.06762561999368,5.73706389056461,9.61372680282721,6.28071514134196,
0,0,0,0,0,
0,0,0,0,0,
-9999,-0.665001669114948,-0.97252081332444,0.42444087033222,0.24534023961598,
2.40036779818055,2.07291202059684,2.83468674052881,2.60226617965833,2.37405438748186,
3.7475748038002,3.08638160933055,4.78368629970999,7.06305600181727,7.23369827012026,
5.16158109555769,7.18305938048893,11.3523352518616,6.59417122222743,8.04995160039199,
-9999,-9999,-9999,-9999,-9999,
-9999,10.0261083496756,-9999,-9999,-9999 ;
v = -9999,4.77993271302928,8.03962429346399,9.12443839681766,7.46662173544666,
7.07890150022035,9.07855521047036,8.04521416610628,7.79254453723205,6.69999496958325,
7.82257409103612,7.29960507290879,7.43164287136475,8.17803099275567,3.31333155885445,
1.16749924707366,-0.354359387604836,2.55430967495714,7.51107561941708,-2.92873988488528,
0,0,0,0,0,
0,0,0,0,0,
-9999,7.60096525318162,7.92051786612787,8.0988857225912,7.0257176264653,
7.85126323806927,6.78020174883204,7.38462260938703,6.13056365517939,7.76519579696984,
6.76081230991675,8.96351764440647,6.12284618343193,4.24391799110126,7.23370647295417,
6.15133973976251,4.31602339386269,4.35776138967474,4.61729421760706,5.4297678800614,
-9999,-9999,-9999,-9999,-9999,
-9999,14.318783166197,-9999,-9999,-9999 ;
pressure = -9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999 ;
o3 = -9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999 ;
temp= -9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999 ;
rh = -9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999,
-9999,-9999,-9999,-9999,-9999 ;
}
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