This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Leonard- You can't pass in any constraint information from the OPeNDAP URL. The IDV will allow you to do the field selection and subsetting once you've loaded the data. Try loading in: http://acdisc.sci.gsfc.nasa.gov/opendap/Aqua_AIRS_Level3/AIRX3STD.005/2009/AIRS.2009.08.14.L3.RetStd001.v5.2.2.0.G09229093014.hdf to the URL chooser. The Topography field is under the 2D grid set of fields. Don Murray > Full Name: leonard > Email Address: address@hidden > Organization: ADEQ > Package Version: 2.8u1 build date:2010-02-02 22:30 UTC > Operating System: Windows XP > Hardware: Java: home: d:\P\IDV_2.8u1\jre version: 1.6.0_17 j3d:1.5.2 fcs > (build4) > Description of problem: There was an error loading the data: > Error creating data source:dods with: > http://acdisc.sci.gsfc.nasa.gov/opendap/Aqua_AIRS_Level3/AIRX3STD.005/2009/AIRS.2009.08.14.L3.RetStd001.v5.2.2.0.G09229093014.hdf?location.Data%20Fields.Topography[0:1:179][0:1:359 > Grid data source failed making data set: > dods://acdisc.sci.gsfc.nasa.gov/opendap/Aqua_AIRS_Level3/AIRX3STD.005/2009/AIRS.2009.08.14.L3.RetStd001.v5.2.2.0.G09229093014.hdf?location.Data%20Fields.Topography[0:1:179][0:1:359 > "libdap error transmitting DDS: Constraint expression parse error: syntax > error" > > ****************** > Stack trace: > java.io.IOException: "libdap error transmitting DDS: Constraint expression > parse error: syntax error" > at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:244) > at ucar.nc2.dataset.NetcdfDataset.acquireDODS(NetcdfDataset.java:783) > at ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:657) > at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:434) > at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:523) > at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:103) > at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:89) > at > ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridDataSource.java:1084) > at > ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:1106) > at > ucar.unidata.data.grid.GeoGridDataSource.initAfterCreation(GeoGridDataSource.java:471) > at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1565) > at > ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1992) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1909) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1843) > at > ucar.unidata.idv.IntegratedDataViewer.handleAction(IntegratedDataViewer.java:1685) > at ucar.unidata.idv.DefaultIdv.handleAction(DefaultIdv.java:110) > at > ucar.unidata.idv.IntegratedDataViewer.handleAction(IntegratedDataViewer.java:1617) > at ucar.unidata.idv.chooser.UrlChooser.loadURLInner(UrlChooser.java:267) > at ucar.unidata.idv.chooser.UrlChooser.loadURL(UrlChooser.java:239) > at ucar.unidata.idv.chooser.UrlChooser.doLoadInThread(UrlChooser.java:286) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at ucar.unidata.util.Misc$2.run(Misc.java:1068) > at ucar.unidata.util.Misc$3.run(Misc.java:1096) > > > Ticket Details =================== Ticket ID: JNH-694932 Department: Support IDV Priority: Normal Status: Open