Hello all - Im trying to aggregate a series of nc files that have 'day' as the
time dimension - with 365 entries in each file - representing daily readings.
This is a piece from my catalog.xml
<dataset name="MET Maximum Reflectance 1979-2012 Aggregated"
ID="agg_met_rmax_1979_2012_WUSA" serviceName="all" harvest="true"
urlPath="agg_met_rmax_1979_2012_WUSA.nc">
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
<aggregation dimName="day" type="joinExisting" timeUnitsChange="true">
<scan location="/xxxx/xxxx/xxxx/MET/" regExp="rmax.*\.nc$"
subdirs="false" />
</aggregation>
</netcdf>
</dataset>
When I attempt to access a subset more than one year - I get a javaexception -
'illegal range for dimension 2: last requested 753 > 365 max'
Ncdump of a file that im trying to aggregate:
netcdf vs_2012 {
dimensions:
day = 366 ;
lon = 1386 ;
lat = 585 ;
variables:
float lon(lon) ;
lon:units = "degrees_east" ;
lon:description = "longitude" ;
float lat(lat) ;
lat:units = "degrees_north" ;
lat:description = "latitude" ;
float day(day) ;
day:units = "days since 1900-01-01 00:00:00" ;
day:calendar = "gregorian" ;
day:description = "days since 1900-01-01" ;
float wind_speed(lat, lon, day) ;
wind_speed:units = "m/s" ;
wind_speed:description = "Daily Mean Wind Speed" ;
wind_speed:_FillValue = -9999.f ;
wind_speed:esri_pe_string =
"GEOGCS[\\\"GCS_WGS_1984\\\",DATUM[\\\"D_WGS_1984\\\",SPHEROID[\\\"WGS_1984\\\",6378137.0,298.257223563]],PRIMEM[\\\"Greenwich\\\",0.0],UNIT[\\\"Degree\\\",0.0174532925199433]]"
;
wind_speed:coordinates = "lon lat" ;
wind_speed:height = "10 m" ;
wind_speed:missing_value = -9999. ;
}
--
I have other nc files that are very similar, and they aggregate fine. The main
difference is, the files that aggregate correctly have a 'time' dimension, not
'day', and they use the 'noleap' calendar.
The files that do NOT aggregate have 'day' as the time dimension and use the
'gregorian' calendar.
--
Im thinking that my aggregation xml is not structured right, maybe I should use
JoinNew and declare 'day' as a coordinate variable? It seems that JoinExisting
would work given that the 'day' dimension exists in all files to aggregate.
Anyway, I would appreciate any help, and can provide other log information as
necessary.
Im running the most recent stable version of TDS, on linux/red hat, under
tomcat6
Thanks!
Erich
