[thredds] data won't return from

• To: THREDDS community <thredds@xxxxxxxxxxxxxxxx>
• Subject: [thredds] data won't return from
• From: Spicer Bak <spicer.bak.frf@xxxxxxxxx>
• Date: Wed, 29 Jan 2020 17:02:54 -0500

hello TDS community,
I have a problem I'm quite pickled on.  We had a dataset that was working
fine until (i think) we pushed the latest file.  Our server is continually
updated with new files and all of the other datasets seem to work fine.

I'm able to get the data from the individual file URLS, but not the time
concatenated ncml file.  I can display the file or variables, but not
obtain any of the data through OPeNDAP, but i'm able to see the data
returned via the "get ASCII" button on the OPeNDAP page.  The below python
script demonstrates the problem:

# success with ncml:
https://chldata.erdc.dren.mil/thredds/dodsC/frf/geomorphology/DEMs/surveyDEM/surveyDEM.ncml.ascii?latitude%5B0:1:0%5D%5B0:1:0%5D,time%5B0:1:425%5D,elevation%5B0:1:0%5D%5B0:1:0%5D%5B0:1:0%5D

# Failure with python (matlab as well)
import netCDF4 as nc
for url in urls:
    print(nc.Dataset(url)['time'])
    variables= nc.Dataset(url).variables.keys()
    for var in variables:
        try:
            nc.Dataset(url)[var][0]
            print('Success! {} from {}'.format(var, url))
        except IndexError as e:
            print("won't load variable {} from {}".format(var, url))
            print('    {}'.format(e))

Any help would be much appreciated!

-- 
+++++++++++++++++++++++++++
Spicer Bak, PhD
USACE CHL Field Research Facility
252-305-9975

• Follow-Ups:
  • Re: [thredds] data won't return from
    • From: Sean Arms