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Hi all, Penny and I worked this out; the error message is coming from the script LAS_set_strides.jnl, which should only be applied to netCDF datasets. At the start of that script, we need to add some commands to check whether the dataset is a descriptor file, and if so just exit. Ferret is not set up to do the native striding on descriptor files. If your server uses any descriptor files, please add the following before the comment that says "! If the operation is writing a netCDF file, that is done in chunks..." ! Cannot do native striding if this is a descriptor dataset. DEFINE SYMBOL check_for_des = `($ferret_plot_var),return=dsetpath` IF `STRINDEX("($check_for_des)", ".des") GT 0` THEN EXIT/SCRIPT Ansley Oots, Penny C. (LARC-E301)[SCIENCE SYSTEMS & APPLICATIONS INC.] wrote: What is the latest status concerning use of descriptor files with Armstong 1.1? I am testing Armstrong 1.1 using a descriptor file with three netcdf files and can produce a timeline but get the following error when I try to produce a plot: **ERROR: invalid command: it is not a netcdf dataset SET AXIS/STRIDE=6 LON Command file, command group, or REPEAT execution aborted I saw Roland's suggestion to use TDS but would prefer to be able to use the existing descriptor files from LAS 6.5 if possible. Penny Oots Science Systems & Applications Inc. NASA Langley Research Center, MS 157D Hampton, VA 23681-2199 (757) 864-9816 -----Original Message----- From: owner-las_users@xxxxxxxx [mailto:owner-las_users@xxxxxxxx] On Behalf Of Roland Schweitzer Sent: Monday, December 10, 2007 11:00 AM To: Bernhard Giner Cc: oar.pmel.las_users@xxxxxxxx Subject: Re: [las_users] HowTo use descriptor files Bernhard, Thanks for removing the password. I'll take a look at this problem this week. I think the best approach is to stop using the Ferret descriptor file and join the individual monthly data files using TDS. I'll verify that this works and send you a short example configuration. Roland Bernhard Giner wrote:Hi again, I've forgotten to remove the password protection... sorry. http://airdata.mpch-mainz.mpg.de/las-a/servlets/dataset my tests are in dataset "eval19" ACETO2 is my test with a descriptor file BrO is one single .nc file thank you in advance Bernhard -- Max Planck Institute for Chemistry Department of Atmospheric Chemistry Joh.-Joachim-Becher-Weg 27, D-55128 Mainz P.O. Box 3060, 55020 Mainz, Germany Phone: (+49 6131) 305 - 449 Fax: (+49) (0)6131 305 - 436 |