Hi Jack, Question 1: Yes, the conduit feed in delivered via land line and the other NOAAPORT satellite. There's a difference because of volume limits on the satellite feed. The conduit feed has higher resolution, NCEP uses this term broadly. It could mean more parameters, more levels, more grid points and a slighty larger grid size. This information is available when one looks at the models description when a file is selected. Hope this helps. Robb... On Fri, 29 Jun 2012, Jack Settelmaier wrote: > New Ticket: Motherlode KMZ requests question > > Ben, > > You're my first thought for all questions related to > Motherlode, but I've left thredds-support on here as well, > in case they are a better recipient for these questions. > > 3 questions. > > I'm pulling NWS NDFD data from the motherlode server: > http://motherlode.ucar.edu:8080/thredds/idd/models.html > > 1) There is an NDFD_5km and an NDFD_5km_conduit feed. Is > the non-conduit one what is delivered via satellite, and > conduit via landline? Is that the difference? In the > conduit feed, I can access NDFD Apparent Temperature grids, > but not in the other. > > This leads to my second question: > 2) I was able to successfully use this link to generate KMZ > for a selected variable, area, time, etc. > motherlode.ucar.edu:8080/thredds/wms/NCEP/NDFD/conduit/CONUS_5km/NDFD_CONUS_5km_conduit_20120629_1800.grib2?LAYERS=Temperature_tendency_by_all_radiation&ELEVATION=0&TIME=2012-07-01T21%3A00%3A00.000Z&TRANSPARENT=true&STYLES=boxfill%2Frainbow&CRS=EPSG%3A4326&COLORSCALERANGE=310.93%2C320.2&NUMCOLORBANDS=20&LOGSCALE=false&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&EXCEPTIONS=XML&FORMAT=application/vnd.google-earth.kmz&BBOX=-90.317814108408,26.616127749272,-72.993861744786,40.150465533352&WIDTH=2048&HEIGHT=1600 > > In order to lighten my scripting, I would rather not have to > alter too much in my "command line" approach of grabbing > this KMZ and other forecast hours. I know there is a > "latest" file offered in this conduit directory, but the > full NDFD contents are only in the 0000, 0600, 1200, and > 1800 files (every 6 hours). Would it be possible to also > always have available a "latest" FULL file (these 4 time > steps are 70-80MB, vs the 35-45MB for the other hours) > > 2a) Additionally, in the above "command line" syntax, there > is a date. Rather than the date, can I insert a forecast > projection time, such as "time=5," since I know time step=5 > is one of about 34 time steps in this file, rather than > using the actual valid date, which is a function of the > initial date (ie. more scripting to prep and automate this > scheduled data-gathering). > > 3) Is it possible to send a command line syntax request like > the above that combines multiple variables, and returns them > in one KMZ. That is, give me 5 variables that all have the > same valid time (projection=5)? > > Any tips would be appreciated. > > On 11/3/2011 5:16 PM, Ben Domenico wrote: > > Hi Jack, > > > > To my knowlege, there has not been a GRIB output option > > for the subsetting capabilities in the TDS, but I'm > > sending this to our Unidata support system in case I've > > missed something along the way. > > > > -- Ben > > > > On Thu, Nov 3, 2011 at 1:18 PM, Jack Settelmaier > > <address@hidden > > <mailto:address@hidden>> wrote: > > > > I see one can subset data on a thredds server and get > > netcdf. I could have sworn I saw one could subset and > > get GRIB2 back, instead, but I don't see that option. > > Is subsetting and getting grib2 possible? > > From my Blackberry > > > > > > > > Ticket Details > =================== > Ticket ID: OFS-300596 > Department: Support THREDDS > Priority: Normal > Status: Open > Link: > https://www.unidata.ucar.edu/esupport/staff/index.php?_m=tickets&_a=viewticket&ticketid=20214 > =============================================================================== Robb Kambic Unidata Program Center Software Engineer II Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ ===============================================================================
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