[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[python #PLC-371608]: Help Script

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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.

  • Subject: [python #PLC-371608]: Help Script
  • Date: Mon, 09 Oct 2023 10:37:01 -0600
Hi, and thanks for reaching out.

If you browse Unidata's TDS for the data you're looking for, 
https://thredds.ucar.edu/thredds/catalog/grib/NCEP/GFS/Global_0p25deg_ana/catalog.html,
 you'll see that we do not archive data long-term. For this particular GFS 
data, we only hold on to about a week's worth; your September data are not 
available.

You can browse a THREDDS Data Server provided by NOAA NCEI for 0.5 degree GFS 
analysis from a bit further back, including your dates:

  https://www.ncei.noaa.gov/thredds/catalog/model-gfs-g4-anl-files/catalog.html

Note that this will require constructing a new TDSCatalog link pointing to the 
appropriate dates. You can find an example accessing GFS data on the NCEI TDS 
here: 
https://unidata.github.io/python-training/gallery/850hpa_temperature_advection/,
 though note that this example is very out of date outside of the Siphon code 
snippets.

Let us know if you run into any Siphon-related headaches! I hope this helps.


Best,

Drew


> I kindly request your help in creating a script with MetPy. I am currently
> using Siphon, a TDS catalog, but I need data for the dates September 3, 10,
> and 23, 2023. How can I achieve this?
> 
> Also, I am attaching a part of the script I am currently using. Thank you
> very much for your attention and I remain attentive to your guidance.
> 


Ticket Details
===================
Ticket ID: PLC-371608
Department: Support Python
Priority: Low
Status: Closed
===================
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata 
inquiry tracking system and then made publicly available through the web.  If 
you do not want to have your interactions made available in this way, you must 
let us know in each email you send to us.