Dave, If nothing else we can meet and discuss when you are here for our conference. I will discuss with Steve Chiswell for plotting ideas via GEMPAK and maintain this thread.. Thanks for the info, will get back to you... -Jeff ____________________________ _____________________ Jeff Weber address@hidden Unidata Support PH:303-497-8676 COMET Case Study Library FX:303-497-8690 University Corp for Atmospheric Research 3300 Mitchell Ln http://www.unidata.ucar.edu/staff/jweber Boulder,Co 80307-3000 ________________________________________ ______________________ On Thu, 13 Mar 2003, David Welsh wrote: > Jeff Weber wrote: > > > > David, > > > > We are speaking of level III data right? > > > > We can feed you the radar data from here if it makes things easier, not > > sure what FSL is doing with their radar data. > > > > Phone is OK, but we prefer to maintain e-mail records of things of this > > nature, so we do not need to remember all the details when it crops up > > again, we can just search our archives..:) > > > > Is the line plot data comma or tab delimited ASCII, how many fields, and > > what are the feilds..maybe you can send me a "example" data set so I can > > see if and how much work is needed to make them viewable via GEMPAK.. > > > > Steve Chiswell maintains the GEMPAK code for us here and we may want to > > bring him into this discussion at some point. > > > > I believe you just wanted the base refl tilt from FTG, PUB, CYS, and GLD.. > > > > Here is another option...we create a nat'l 1 Km mosaic of the base refl > > (N0R) and it is completely navigable, so you could do all your plots on > > the same area and be able to zoom in and out..just an idea. > > > > We have our user committee in town today and tomorrow, so a vist this wek > > is out, but we have a few slots available next week.. > > > > So please send me a sample file of your line plot data, and we can go from > > there.. > > > > Thank you, > > > > -Jeff > > Jeff, > > Yes level 3 data and the base reflectivity of 0.5 degress for now. But they > may > want different angles or the composite in the future. This is the start of the > project and the NWS folks will be evaluating the Infrasound data for > usefulness. > They may say that the 0.5 angle is too low. The idea is for them to be able to > see the Infrasound images/lines on one screen and then quickly see the same > cell > on their AWIPS screen to help them identify potential tornado producing cells. > > I have attached a file with 3 lines of data. They are CSV for use in a > spreadsheet. I also have a program that puts the values into a netCDF file. In > either case, the latest data line is the one used to generate the line plot > when > the new Nexrad data arrives. > > There are 16 numbers per line: > > The first column is mm/dd/yyyy hh:mm:ss > Then there are 5 values for each of 3 passbands: > > Passband 1-5 Hz: > 1. correlation coeficient > 2. azimuth > 3. speed > 4. peak power > 5. average power > > Passband .5-1 Hz: > 1. correlation coeficient > 2. azimuth > 3. speed > 4. peak power > 5. average power > > Passband 5-10 Hz: > 1. correlation coeficient > 2. azimuth > 3. speed > 4. peak power > 5. average power > > If the correlation coeficient is > .5, then plot a vector from the Infrasound > site using the azimuth. Otherwise do not plot a line from the site. There are > three Infrasound sites: Pueblo, BAO tower, and Goodland. > > After talking to the NWS person who will be evaluating the use of Infrasound > to > detect tornados they would like: > > 1. One radar image per web page > 2. Only plot line when correlation is >.5 > > We need to make a series of plots 3 sites X 3 passbands. The web page will be > tabbed so they can click on which site-passband they want to see. > > I would be interested in your national composite that is navigable/zoomable. > It > could be another tab for the NWS folks. > > Another thought would be to put the 3 passbands on the same with different > colors and then evaluate how messy the plot becomes. > > Next Wed and Thurs I am going to the OpenDAP/GIS Unidata conference and taking > off Fri. > > Thanks, > > Dave > -- > David C. Welsh > US DoC, NOAA MC R/ET > 325 Broadway > Boulder, CO 80305 > > O (303) 497-6510 F (303) 497-6978 > http://www.etl.noaa.gov >
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