[ncl-talk] CFSR from OpenDAP

Fri Apr 28 07:39:20 MDT 2017

Thanks for all the detective work! How can I access the fixed version? I'm
currently using build ncl_ncarg-6.4.0-CentOS7.3_64bit_gnu485.tar.gz

On Thu, Apr 27, 2017 at 4:58 PM, David Brown <dbrown at ucar.edu> wrote:

> This has been fixed in the development branch of NCL.
>
> On Thu, Apr 27, 2017 at 2:10 PM, Rick Brownrigg <brownrig at ucar.edu> wrote:
>
>> My mistake..."http:" worked with 6.3.0, but "https:" did not.  Neither
>> work with 6.4.0.
>>
>>
>>
>> On Thu, Apr 27, 2017 at 2:06 PM, David Brown <dbrown at ucar.edu> wrote:
>>
>>> There is definitely a bug. NCL is getting confused by the "grb2"
>>> extension in the name, causing the path treated as a local file path rather
>>> than as an OpenDAP file. This should be an easy fix.
>>>  -dave
>>>
>>> On Thu, Apr 27, 2017 at 1:59 PM, Rick Brownrigg <brownrig at ucar.edu>
>>> wrote:
>>>
>>>> Hi Carl,
>>>>
>>>> Try "http:" rather than "https:" -- it worked for me.  In the case of
>>>> "https:", an strace of NCL revealed it was looking only in the local file
>>>> system for the file, and there was no network activity.  I don't know if
>>>> that is a bug or intentional behavior.
>>>>
>>>> Rick
>>>>
>>>>
>>>> On Thu, Apr 27, 2017 at 1:47 PM, Kyle Griffin <ksgriffin2 at wisc.edu>
>>>> wrote:
>>>>
>>>>> Hi Carl,
>>>>>
>>>>> I can confirm that I can open the file via netCDF4 in python (1.2.7),
>>>>> but cannot in my installs of NCL (6.3.0). There was a version of netCDF4
>>>>> that had issues with OPeNDAP a few months ago (1.2.1 ish, perhaps?), but
>>>>> that doesn't explain why the much older NCL 6.3.0 would also fail to open
>>>>> the file.
>>>>>
>>>>>
>>>>> Kyle
>>>>>
>>>>> On Thu, Apr 27, 2017 at 12:38 PM Carl Schreck <cjschrec at ncsu.edu>
>>>>> wrote:
>>>>>
>>>>>> I am trying to access CFS Reforecasts from any of the files
>>>>>> underneath here
>>>>>> <https://nomads.ncdc.noaa.gov/thredds/catalog/cfsr-hpr-ts45/catalog.html>,
>>>>>> such as this one for OLR
>>>>>> <https://nomads.ncdc.noaa.gov/thredds/catalog/cfsr-hpr-ts45/uswtoa_f/2010/201012/catalog.html?dataset=cfsr-hpr-ts45/uswtoa_f/2010/201012/uswtoa_f.01.2010123118.2011021418.2010123118.grb2>
>>>>>> .
>>>>>>
>>>>>> But NCL does not seem to be able to access the OpenDAP links:
>>>>>> ncl 0> f=addfile("https://nomads.ncdc.noaa.gov/thredds/dodsC/cfsr-h
>>>>>> pr-ts45/uswtoa_f/2010/201012/uswtoa_f.01.2010123118.20110214
>>>>>> 18.2010123118.grb2","r")
>>>>>> fatal:_NclFileCreate: Requested file does not exist as (
>>>>>> https://nomads.ncdc.noaa.gov/thredds/dodsC/cfsr-hpr-ts45/us
>>>>>> wtoa_f/2010/201012/uswtoa_f.01.2010123118.2011021418.2010123118.grb2)
>>>>>> or as (https://nomads.ncdc.noaa.gov/thredds/dodsC/cfsr-hpr-ts45/us
>>>>>> wtoa_f/2010/201012/uswtoa_f.01.2010123118.2011021418.2010123118),
>>>>>> can't add file
>>>>>>
>>>>>> I'm trying to figure out if it's an issue with NCL or with their
>>>>>> server. It also failed on 6.3.0.
>>>>>>
>>>>>> Let me know if you have any thoughts. Thanks!
>>>>>> Carl
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>>
>>>>>> <https://ncics.org/>
>>>>>> * Cyclone <http://www.cyclonecenter.org/>*Center.org
>>>>>> <http://www.cyclonecenter.org/>   *Carl J. Schreck III, PhD*
>>>>>> *Research Scholar / Research **Assistant Professor*
>>>>>> Cooperative Institute for Climate and Satellites NC (CICS
>>>>>> <http://www.cicsnc.org/>*-NC) <http://www.cicsnc.org/> /*
>>>>>> Department of Marine, Earth, and Atmospheric Sciences (MEAS)
>>>>>> <https://meas.sciences.ncsu.edu/>
>>>>>> North Carolina State University <http://ncsu.edu/>
>>>>>> NOAA National Centers for Environmental Information (NCEI)
>>>>>> <http://ncei.noaa.gov/>
>>>>>> 151 Patton Ave, Asheville, NC 28801
>>>>>> e: carl_schreck at ncsu.edu
>>>>>> o: +1 828 257 3140 <(828)%20257-3140>
>>>>>> c: +1 828 484 1702 <(828)%20484-1702>
>>>>>> Publications
>>>>>> <http://scholar.google.com/citations?hl=en&user=th8ONEcAAAAJ&view_op=list_works&sortby=pubdate>
>>>>>> ncics.org/mjo
>>>>>> _______________________________________________
>>>>>> ncl-talk mailing list
>>>>>> ncl-talk at ucar.edu
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>>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>>
>>>>> --
>>>>> ----------------------------------------
>>>>> Kyle S. Griffin
>>>>> Department of Atmospheric and Oceanic Sciences
>>>>> University of Wisconsin - Madison
>>>>> Room 1407
>>>>> 1225 W Dayton St, Madison, WI 53706
>>>>> Email: ksgriffin2 at wisc.edu
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
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>>>>>
>>>>>
>>>>
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>>
>
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-- 

<https://ncics.org/>
* Cyclone <http://www.cyclonecenter.org/>*Center.org
<http://www.cyclonecenter.org/>   *Carl J. Schreck III, PhD*
*Research Scholar / Research **Assistant Professor*
Cooperative Institute for Climate and Satellites NC (CICS
<http://www.cicsnc.org/>*-NC) <http://www.cicsnc.org/> /*
Department of Marine, Earth, and Atmospheric Sciences (MEAS)
<https://meas.sciences.ncsu.edu/>
North Carolina State University <http://ncsu.edu/>
NOAA National Centers for Environmental Information (NCEI)
<http://ncei.noaa.gov/>
151 Patton Ave, Asheville, NC 28801
e: carl_schreck at ncsu.edu
o: +1 828 257 3140
c: +1 828 484 1702
Publications
<http://scholar.google.com/citations?hl=en&user=th8ONEcAAAAJ&view_op=list_works&sortby=pubdate>
ncics.org/mjo
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