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[IDD #WQU-836043]: Usage / Copyrights regarding text data (Metar, Synop)

Hi Dieter,

I apologize for taking so long to get back to you!  This past week
has been awfully busy...

> Thank you for these good news and your cooperativeness!
> Your workshop last week at our institute was very interesting.


> If there is any advantage by using the LDM installation in comparison to a
> regulare download of the textfiles in
> "http://motherlode.ucar.edu/cgi-bin/ldm/genweb?native/nwstg/text"; we would
> prefer such an installation. I suppose, on the Unidata webpage one can
> find a guide for the setup of a LDM installation.

We think that there is a BIG advantage to getting the data delivered via
the LDM.  Foremost is the timeliness of the data delivery.

Yes, the LDM section of our website has instructions for downloading, building,
and installing the software.  After that step is done, we can help you setup
the REQUEST(s) for the data that you want to receive.

When you get to the point where the LDM is installed and you would like help
in configuring it to REQUEST the data you want, we would appreciate that you
send a "new" email (i.e., not a reply to a previous email that may have the
tracking ID for that exchange attached) to address@hidden.

> I have a question concerning the mentioned Metar- and Synop observations
> in this folder. A textfile like SURFACE_DDPLUS_20110409_0000.txt contains
> a lot of additional data (tables, verbalized weather reports,...). Is
> there any possibility to obtain textfiles only with Metars and Synops?

It is easiest to get the entire feed first, and then process the portion(s)
of it that you are most interested in.

> This would accelerate reading and decoding these extensive files.

We make available a package of decoders for the textual data that you
are interested in.  The package, netCDF decoders, is freely downloaded
from our site just like the LDM.

> In a few months, our institute would be able to offer VERA (Vienna
> enhanced resolution analysis) gridpoint data (resolution ~ 10 arc minutes)
> in NETCDF for Europe, USA and Australia to Unidata, in the case you are
> interested in. This analysis method does not only interpolate surface
> observations to a regulare grid but takes also into account the thermal and
> dynamical influences of mountains and water bodies on pressure and
> temperature patterns. If such patterns (Fingerprint technique) are
> recognized and supported by the observations they influence the analysis
> also in regions with less dense station distributions what enables a
> detailed analysis.

This is very interesting indeed.

> Analyzed parameters are MSL pressure, potential temperature, equivalent
> potential temperature, wind and precipitation. Additionally we could offer
> derived parameters as moisture flux divergence, pressure tendency,
> temperature of lowlands and valleys and apparent temperature (taking into
> account wind speed and heat index).

What we would most likely want to do is setup an LDM feed of your data
back to our office so we can take a close look at it to see if it would
be of interest to the Unidata community.  I it is, we would want to work
with you to make the data available on an ongoing basis.

> Examples of actual VERA charts fed with free observations:
> http://www.univie.ac.at/amk/Veraflex_oa/
> Examples of temporally delayed VERA charts fed with not freely available
> observations:
> http://www.univie.ac.at/AMK/veraflex/pub/index.php

Thanks for the URLs!

> Let us know, if Unidata would be interested generally in Vera gridpoints.

In general we/our community would be interested.  The question is how best
to make the data available.  The best options are:

- real-time "push" feed(s) using the LDM

- server "pull" access through a THREDDS and/or RAMADDA server running
  at your site

  We won't know which way would be preferable to our community until
  we had a chance to look at the data ourselves and get one or more
  community sites (universities) to do their own evaluations.


Unidata User Support                                    UCAR Unidata Program
(303) 497-8642                                                 P.O. Box 3000
address@hidden                                   Boulder, CO 80307
Unidata HomePage                       http://www.unidata.ucar.edu

Ticket Details
Ticket ID: WQU-836043
Department: Support IDD
Priority: Normal
Status: Closed