Hello,
I'm sending this both to the THREDDS and LAS mailing list and hope to get an
advise on a solution.
I created a THREDDS catalog that dynamically aggregates the NetCDF files to a
virtual netcdf..
The configuration works great when accessing via THREDDS URL.
I then used the THREDDS/Opendap link of the Virtual NetCDF file to configure
the dataset into LAS.
When accessing the dataset in the Interface, there are no messages returned in
the LAS log nor TOMCAT directory.
I did notice when selecting the (?) from the LAS dataset selection, I selected
the .jnl link and it returned:
Error {
code = 500;
message = "java.io.IOException: Cant read
/usr/local/tomcat/content/las/conf/server/data/SSHA_TEST/data_podaac-ecco.jpl.nasa.gov_thredds_dodsC_kf080_kf080_have_timeAgg.nc.jnl:
not a valid CDM file.";
};
QUESTION: How can I make the virtual NetCDF file to be a valid CDM file. Note
I used joinExisting because each granule contains more than 1 time value (from
3 to 10). and using joinNew requires only 1 time entry per granule .
THREDDS catalog of Dataset
http://podaac-ecco.jpl.nasa.gov/thredds/ecco_catalogs/kalmanfilter_timeagg.html?dataset=kf080_have_timeAgg
THREDDS/OPeNDAP link to aggregated dataset:
http://podaac-ecco.jpl.nasa.gov/thredds/dodsC/kf080/kf080_have_timeAgg.nc.html
Main THREDDS Catalog:
http://podaac-ecco.jpl.nasa.gov/thredds/
Here's the Snippet configuration of the aggregated dataset. You can also find
the scan location directory content here:
http://podaac-ecco.jpl.nasa.gov/thredds/catalog/ecco_KalmanFilter/catalog.html
(catalog.xml) - a snippet of the dataset.
..
..
<dataset name="Sea Surface Height (10 day) Time Aggregation (kf080)"
ID="kf080_have_timeAgg" urlPath="kf080/kf080_have_timeAgg.nc">
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
<aggregation dimName="time" type="joinExisting" recheckEvery="1
day">
<scan location="/usr/www/ecco/data4/kf080/"
regExp="Have_08_08.*\.cdf" />
</aggregation>
<attribute name="Convention" value="CF-1.0" />
<variable name="lat">
<attribute name="standard_name" type="String"
value="latitude"/>
<attribute name="axis" type="string" value="Y"/>
<attribute name="units" type="string" value="degrees_north" />
</variable>
<variable name="lon">
<attribute name="standard_name" type="string"
value="longitude"/>
<attribute name="axis" type="string" value="X"/>
<attribute name="units" type="string" value="degrees_east" />
</variable>
<variable name="time">
<attribute name="standard_name" type="string" value="time"/>
<attribute name="axis" type="string" value="T"/>
<attribute name="units" type="string" value="hours since
1970-01-01 00:00:00"/>
</variable>
</netcdf>
..
..
Here's the first part of the aggregated NetCDF file it generated and placed in
THREDDS ./cache/agg/kf080-kf080_have_timeAgg.nc
<?xml version='1.0' encoding='UTF-8'?>
<aggregation xmlns='http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2'
version='3' type='joinExisting' dimName='time' >
<netcdf
id='/usr/www/ecco/data4/kf080/kf080_1993/n10day_01_09/Have_08_08.00001_02160_240.cdf'
ncoords='9' >
<cache varName='time' >201744.0 201984.0 202224.0 202464.0 202704.0
202944.0 203184.0 203424.0 203664.0 </cache>
</netcdf>
<netcdf
id='/usr/www/ecco/data4/kf080/kf080_1993/n10day_01_09/TRASH/Have_08_08.00001_02160_240.cdf'
ncoords='9' >
<cache varName='time' >201744.0 201984.0 202224.0 202464.0 202704.0
202944.0 203184.0 203424.0 203664.0 </cache>
</netcdf>
<netcdf
id='/usr/www/ecco/data4/kf080/kf080_1993/n10day_10_18/Have_08_08.02160_04320_240.cdf'
ncoords='9' >
<cache varName='time' >203904.0 204144.0 204384.0 204624.0 204864.0
205104.0 205344.0 205584.0 205824.0 </cache>
</netcdf>
<netcdf
id='/usr/www/ecco/data4/kf080/kf080_1993/n10day_19_27/Have_08_08.04320_06480_240.cdf'
ncoords='9' >
<cache varName='time' >206064.0 206304.0 206544.0 206784.0 207024.0
207264.0 207504.0 207744.0 207984.0 </cache>
</netcdf>
<netcdf
id='/usr/www/ecco/data4/kf080/kf080_1993/n10day_28_37/Have_08_08.06480_08880_240.cdf'
ncoords='10' >
<cache varName='time' >208224.0 208464.0 208704.0 208944.0 209184.0
209424.0 209664.0 209904.0 210144.0 210384.0 </cache>
</netcdf>
..
..
Here's the Access in the LAS interface
http://podaac-ecco.jpl.nasa.gov/las/
select (kf080_have) -> Sea Surface Height (it'll just hang). Select (?)
next to the dataset name and click on .jnl you'll find the error message.
Please advise.
Thanks so much.
Rosanna.
------------------------------------------------------------
Rosanna Sumagaysay-Aouda
Physical Oceanography DAAC
http://podaac.jpl.nasa.gov/
Mail Stop: Raytheon-299
Rosanna.M.Sumagaysay@xxxxxxxxxxxx
------------------------------------------------------------
"You can't depend on your eyes when your imagination is out of focus." - Mark
Twain
