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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
On Tue, 3 Jun 2003, Hansen, Anthony R. wrote: > Robb; > Thanks for the information about THREDDS and the examples you > included in your e-mail. I think we can use this to get most of what we > need from the MetarServer. The exact syntax of the response doesn't > really matter and I think we can parse the XML code as easily as > anything else. If we have any questions, I'll be in touch. One Tony, Glad you can use this service. > additional question is, can we access the co-ordinate data on the > positions of fronts that HPC puts out through THREDDS also? We need to > acquire frontal position data from somewhere for our forecast exercise > and it would be convenient to be able to get that through your > web-services also. At this time THREDDS doesn't have frontal position data on a server, but it's in the planning stages. It could be finished by the fall but I can't make any promises. Robb.. > Thanks for your attention to this, and we'll keep you posted on > how our project is proceeding. Our goal is to have it ready for the > coming fall semester. > > Tony > > ============================================ > Tony Hansen > Department of Earth and Atmospheric Sciences > St. Cloud State University > 720 Fourth Avenue South > St. Cloud, MN 56301 > > Phone: 320-255-2009 > Fax: 320-255-4262 > > ============================================ > > > > -----Original Message----- > From: Robb Kambic [mailto:address@hidden] > Sent: Friday, May 30, 2003 2:39 PM > To: Hansen, Anthony R. > Cc: John Caron; Ben Domenico > Subject: Tony Hansen request for assistance > > > Tony, > > I don't if anyone from Unidata contacted you, so I'll respond to your > question that was sent to the User's committee. My response will only > deal with the data acquisition part of the question. > > At this time Unidata has the THREDDS project that's making dataset > services available via web-services. Since THREDDS project is still in > the development stages, not very many services are available. But, there > is a Metar server that you might be interested in investigating. > > From your letter sent to the User committee, you mentioned a request in > the > format: > > <forecast> > <site>KSTC</site> > <date>04/02/03</date> > </forecast> > > and a response of: > > <forecast-result> > <site>KSTC</site> > <date>04/02/03</date> > <temp tim=12Z>34</temp> > .... > </forecast-result> > > At this time we don't have anything to satisfy the above syntax, but the > Metar Server will take a URL and return an XML representation of the > data in a general format of > > <parameter name="time" value="221753Z" /> for the Metar report > parameters. > > Using the URL: > > http://motherlode.ucar.edu:8080/thredds/cgi-bin/MetarServer.pl?format=xm > l&stn=KSTC&time=latest > > will return: > > <station name="KSTC"> > <parameter name="report" value="KSTC 301753Z AUTO 28018G24KT 10SM > OVC029 17/12 A2943 " /> > <parameter name="time" value="301753Z" /> > <parameter name="DIR" value="280" /> > <parameter name="SPD" value="18KT" /> > <parameter name="GUST" value="24" /> > <parameter name="prevail_VIS_SM" value="10" /> > <parameter name="cloud_type" value="OVC" /> > <parameter name="cloud_hgt" value="2900" /> > <parameter name="cloud_meters" value="870" /> > <parameter name="T" value="17" /> > <parameter name="TD" value="12" /> > <parameter name="inches_ALTIM" value="29.43" /> > </station> > > The return is well-formed and valid XML that can be sent to any XML > parser for data extraction. > > If you are interested in using the Metar Server, documentation is > available. Actually there are many parameters that are configurable to > closer satisfy your requirements. > > For documentation, look at this url near the bottom of the page, "Metar > server on motherlode.ucar.edu" > > http://www.unidata.ucar.edu/projects/THREDDS/tech/threddsData.html > > > For Denver's KDEN report: > > http://motherlode.ucar.edu:8080/thredds/cgi-bin/MetarServer.pl?format=xm > l& > stn=KDEN&time=latest > > <station name="KDEN"> > <parameter name="report" value="KDEN 221753Z 06009KT 10SM CLR 23/07 > A3016 " /> > <parameter name="time" value="221753Z" /> > <parameter name="DIR" value="060" /> > <parameter name="SPD" value="09KT" /> > <parameter name="GUST" value="0" /> > <parameter name="prevail_VIS_SM" value="10" /> > <parameter name="cloud_type" value="CLR" /> > <parameter name="T" value="23" /> > <parameter name="TD" value="07" /> > <parameter name="inches_ALTIM" value="30.16" /> > </station> > > Hopefully this will be helpful to you, > Robb... > > ======================================================================== > ======= > Robb Kambic Unidata Program Center > Software Engineer III Univ. Corp for Atmospheric > Research > address@hidden WWW: > http://www.unidata.ucar.edu/ > ======================================================================== > ======= > > =============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ ===============================================================================