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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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 Bob, Long time no hear! re: > I am the contact person for Unidata products at SUNY Oswego. > Since we are in the process of moving to a new building on campus > and since we have been running the LDM on an outdated computer in > our old building, I would like to move the LDM to a newer machine > currently located in the new building. Very good. re: > The IP for the new machine is 129.3.65.73. I think that I have > installed LDM-6.8.1 correctly on this machine. Now I would like to > ingest data. On the old machine (129.3.26.98), we were requesting > data from both idd.cise-nsf.gov and idd.unidata.ucar.edu. I just verified that forward and reverse DNS exists for your new machine, so you should be good to go. re: > Am I permitted to have two computers ingesting data for a short > period until I am sure that I have installed the LDM correctly on > the new machine? Yes for all feeds listed below _except_ NLDN. Please keep the overlap period as short as possible. re: > If so and if the new machine ingests without a > problem, then I will stop the LDM on the old (current) machine. > If I am not permitted to have two machines ingesting data, then > I request that you feed data to the new machine (129.3.65.73) so > that I can find out if there are problems. Go ahead and test your new machine when you are ready. By the way, a good way to verify that you are ALLOWed to request data from an upstream is to use the LDM 'notifyme' utility. Here is an example 'notifyme' invocation for this kind of use: <as 'ldm' on your new machine> notifyme -vl- -f WMO -h idd.cise-nsf.gov If this 'notifyme' invocation works (shows that you are ALLOWed) then so will a REQUEST. re: > Will I need to contact the NSF site administrator to request > a change to our new machine, or can someone at Unidata make the > request for me? We are the site administrators for the machine housed at NSF, idd.cise-nsf.gov, so you have already made the request by contacting us. re: > On our old (current) machine, we are requesting > the following services: > > REQUEST WMO ".*" idd.cise-nsf.gov:388 > REQUEST MCIDAS ".*" idd.cise-nsf.gov > REQUEST NNEXRAD ".*" idd.cise-nsf.gov > REQUEST FSL2 ".*" idd.cise-nsf.gov > REQUEST WMO ".*" idd.unidata.ucar.edu:388 > REQUEST MCIDAS ".*" idd.unidata.ucar.edu > REQUEST NNEXRAD ".*" idd.unidata.ucar.edu > REQUEST FSL2 ".*" idd.unidata.ucar.edu > REQUEST NLDN ".*" striker2.atmos.albany.edu Depending on the bandwidth into your machine, you could reorganize your REQUEST lines to be a little more efficient. For instance, try the following: REQUEST UNIDATA|FSL2 ".*" idd.cise-nsf.gov REQUEST UNIDATA|FSL2 ".*" idd.unidata.ucar.edu REQUEST NNEXRAD ".*" idd.cise-nsf.gov REQUEST NNEXRAD ".*" idd.unidata.ucar.edu REQUEST NLDN ".*" striker2.atmos.albany.edu re: > Are there any other services that I should request? This would depend on the data you want to ingest. I would suggest REQUESTing the FNEXRAD feed as this contains the national Nexrad Level III base reflectivity composites; most sites find this product to be quite useful. re: > I will contact > the administrator at Albany about the NLDN data later th1s summer. Very good. For the test period, you could request the NLDN feed from the old machine on your new machine. When things look like they are working fully, you should contact SUNYA (David Knight) to request that your new machine be ALLOWed to request the NLDN data. re: > I tried to find a sample pqact.conf file on the Unidata website > without success. Is there an updated prototype pqact.conf file > available? If not, I can use the version that we have been running > for several years on the old machine. The GEMPAK and McIDAS distributions contain relevant/useful pqact.conf files. Since you are a long time GEMPAK user, I would guess that the ones for GEMPAK are appropriate. re: > I am wondering if it is now possible to ingest LEVEL-II radar, > the Canadian GEM forecast model, and NCEP's SREF model via the IDD > as well as other products that may have become available since we > last updated the LDM in 2005. Yes, all of these data are available. Whether or not you can ingest all of them in addition to what you are currently getting depends on the bandwidth into your site. For reference, here are the relevant feeds: NEXRAD2 - Nexrad Level II GEM - GEM model output from the CMC NGRID - high resolution model output contained in NOAAPort (has the SREF data) re: > I would like to update my contact information on the Unidata > web site. My e-mail address is address@hidden and > my office phone is (315) 312-2804. I just updated our IDD site contact list with your new information. Cheers, Tom -- **************************************************************************** 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: DPT-600099 Department: Support IDD Priority: Normal Status: Closed