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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
> Hi all, > > I am trying to work with the WMO feed data we (EOL) are collecting via > LDM. This is an international collection of data, so it's really hard > to find station location information for all these files. > > I know that things are always evolving over at UNIDATA. Do you have a > global station list for this data, or any plans for creating one? (I > kinow I've asked before but thought I'd check and see if anything has > changed.) > > I have a delimma in that without station location information I can't > tell which stations are in my area of interest. And when you combine > station lists there is always the possibility that they won't agree on > the location for a given station, and the problem of determining which > is right. And I always wonder if a station has moved since my station > list was created... Hence the desire to check with you before I plow > ahead on my own. > > For my current application, I just need stations in the TREX area. > Chiz, Can I safely assume that all the stations in the US are covered by > $GEMTBL/stns/sfstns.tbl? No. sfstns.tbl covers most of NCEP's needs, but I generally find additional and add those in to sfmetar_sa.tbl which is what the pqact action I provide is using with dcmetr. Since I amusing data from several sources, and there may be errors in any source, I make modifications to sfmetar_sa.tbl and not the distributed sfstns.tbl. Clearly, historical location and information is a problem. NCDC is working on that problem, but many of the smaller FAA locations are not in their database. The 5.10.1 release has quite a few updated Canadian and Mexican locations as compared to 5.9.4. Greg Thompson has a station table he maintains as well- and the MADIS data sets should have locations within the NetCDF files if you are able to cover your area from that source. Steve Chiswell Unidata User Support > > Thanks for any/all help. > > Janine > > Ticket Details =================== Ticket ID: IEV-629337 Department: Support GEMPAK Priority: Normal Status: Closed