This is an LAS and F-TDS question. I'll leave the THREDDS list in the
conversation for now.
On Fri, Apr 18, 2014 at 1:32 PM, Sumagaysay, Rosanna M (3980-Affiliate) <
Rosanna.M.Sumagaysay@xxxxxxxxxxxx> wrote:
> 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.";
>
> };
>
>
Every LAS data set has two representations. One is the original data set
(in your case an OPeNDAP aggregation created by TDS) and the F-TDS URL. If
you follow the LAS installation instructions you should have configured the
TDS in threddsConfig.xml to use the Ferret I/O service provider and data
source class. And you should have configured the las/conf/server/data
directory to be have *.jnl files recognized as CDM files.
>
> QUESTION: How can I make the virtual NetCDF file to be a valid CDM file.
>
>
The full details are here:
http://ferret.pmel.noaa.gov/LAS/documentation/installer-documentation/installation/installing-and-integrating-tds-with-las/
By looking at your LAS installation, I can see that something about the
process has not be completed correclty.
The instructions above is the first place to start for fixing your LAS
installation.
Roland
> 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*<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*<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/*<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
>
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