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Re: 19991108: Radar Coded Message plotting
- Subject: Re: 19991108: Radar Coded Message plotting
- Date: Thu, 11 Nov 1999 08:39:37 -0700
Tom,
It sounds like you have a typo in your pqact.conf file so that
when pqact reads the configuration, it dies. There usually will
be a log message to what line number is offensive in the ldmd.log file.
The important thing about pqact.conf is that TABS are very important.
Check that you have
HRS <TAB> ^SDUS4[1-6] .... ([0-3][0-9])([0-2][0-9])([0-5][0-9])
<TAB> FILE <TAB> data/rcm/(\1:yyyy)(\1:mm)\1\2_rcm.dat
The LDM will create data/rcm directory if it does not already exist.
Steve CHiswell
Unidata User SUpport
On Thu, 11 Nov 1999, Tom Priddy wrote:
> From: Tom Priddy
>
> Steve...per instructions you sent yesterday....I put the statements in the
> pqact.conf
> as follows:
> # All RCM sites for composite plots
> HRS ^SDUS4[1-6] .... ([0-3][0-9])([0-2][0-9])([0-5][0-9])
> FILE data/rcm/(\1:yyyy)(\1:mm)\1\2_rcm.dat
> But from the time I put that in...not only did nothing go into data/rcm
> subdirectory...
> the LDM stopped putting anything into my system yesterday until I noticed
> the problem this morning. Could the subdir "data/rcm" be the problem?
>
>
> Steve Chiswell wrote:
>
> > Tom,
> >
> > The Radar Coded Message bulletins are part of the HRS IDD feed, and are not
> > proprietary. They are a digitized summary of radar data, similar to the
> > Manually Digitized Radar (MDR) 40km products, but automated from the PUP
> > at the radar site.
> >
> > The PUP uses the 2 nmi x 2 nmi composite reflectivity product and assigns
> > the highest reflectivity value in a 5nmi square grid box. In otherwords,
> > the RCM value for a gridbox is the greatest value of all the radar
> > reflectivities that fall in that box. The RCM provides the 5nmi grid box
> > reflectivities, as well as TVS and MESO cyclone positions as determined
> > by the PUP, as well as maxtop values and storm centroid vectors.
> >
> > The pqact.conf pattern for capturing these products is found at:
> > http://www.unidata.ucar.edu/packages/gempak/examples/gprcm/
> >
> > While these data are not as high resolution as the WSI nowrad product,
> > and they are primarily unedited by the PUP- they do provide a useful
> > product.
> >
> > Enjoy...
> >
> > Steve Chiswell
> > Unidata User Support
> >
> > On Wed, 10 Nov 1999, Tom Priddy wrote:
> >
> > > From: Tom Priddy
> > >
> > > Steve...I don't current subscribe to any special commerial service to get
> > > the
> > > radar data (nids). From your message, does that mean I can now get these
> > > data free in the LDM datastream and setup the software as per your
> > > instructions?/ktp
> > >
> > > Steve Chiswell wrote:
> > >
> > > > Gempak Users,
> > > >
> > > > I have posted a new GEMPAK program "GPRCM" which will plot the
> > > > Radar Coded Message bulletins in the NOAAport data stream.
> > > >
> > > > This program can be found in the nawips-5.4/contrib directory of
> > > > the gbuddy ftp account for Gempak as gprcm.tar.Z. I will attatch the
> > > > gprcm.README file from that directory at the end of this message.
> > > >
> > > > The RCM bulletins contain digitized radar reflectivity values as well
> > > > as annotations including Maxtop heights, cell centroid motion,
> > > > mesocylone and
> > > > TVS locations.
> > > >
> > > > GPRCM can be used to plot single site and composite reflectivity maps
> > > > with the capability to turn annotations and reflectivities on/off
> > > > as needed. Since GPRCM is derived from GPMAP, GPRCM can be used in
> > > > conjunction
> > > > with other GEMPAK programs to create overlays including satellite and
> > > > NIDS imagery products (Yes, you can overlay RCM echos on satellite
> > > > images
> > > > and annotate NIDS images with maxtop, tvs, mesocyclones and cell
> > > > movement).
> > > > A dithering feature has been added for allowing some method of
> > > > transparency or
> > > > echoes.
> > > >
> > > > Examples of using GPRCM, including LDM patterns, can be found at:
> > > > http://www.unidata.ucar.edu/packages/gempak/examples/gprcm/
> > > > I have included a sample plotting script as well.
> > > >
> > > > To install gprcm, download the tarfile to your $NAWIPS directory,
> > > > unpack with:
> > > > zcat gprcm.tar.Z | tar cvf -
> > > > Then build and install with:
> > > > cd $NAWIPS/unidata/programs/gprcm
> > > > make clean
> > > > make all
> > > > make install
> > > > make clean
> > > >
> > > > Please address any questions or problems to address@hidden.
> > > >
> > > > Steve Chiswell
> > > > Unidata User Support
> > > >
> > > > GPRCM is a version of GPMAP that plots Radar Coded Message (RCM)
> > > > bulletins. For examples of the use and capabilities of this program,
> > > > see the GEMPAK Examples www page:
> > > > http://www.unidata.ucar.edu/packages/gempak/examples/
> > > >
> > > > INPUT PARAMETERS
> > > >
> > > > MAP *Map color/dash/width
> > > > GAREA *Graphics area
> > > > PROJ *Map projection/angles/margins|drop flag
> > > > SATFIL *Satellite image filename(s)
> > > > RADFIL *Radar image filename(s)
> > > > LATLON *Line color/dash/width/label/inc
> > > > PANEL *Panel loc/color/dash/width/regn
> > > > TITLE *Title color/line/title
> > > > TEXT *Text size/font/width/hw flag
> > > > CLEAR *Clear screen flag
> > > > DEVICE *Device|name|x size;y size|color type
> > > > LUTFIL *Enhancement lookup table filename
> > > > STNPLT *Txc|mkc/mkt/mks/mkwd/hwfl|stnfil
> > > > RCMFIL *Input source text file
> > > > RADTIM *Valid Plot time {current or dattim}
> > > > RADDUR *Time duration (min_prior to RADTIM)
> > > > DITHER *dither level
> > > > MESO *mesocyclone color/marker/size/width/hw
> > > > TVS *tornado vortex signature color/marker/size/width/hw
> > > > CNTR *Cell Centroid movement barb color/size/width
> > > > MAXTOP *Maxtop color
> > > > RADINFO *Radar status color
> > > > ECHO *Plot radar echoes (0=None,1=PRCP,2=PRCP&CLAR)
> > > >
> > > >
> > > >
> > > > PROGRAM DESCRIPTION
> > > >
> > > > GPRCM is derived from the standard GEMPAK program GPMAP.
> > > > The behavior is similar to gpmap, with the addition of
> > > > reading Radar Coded Message (RCM) bulletins and optionally
> > > > plotting radar echoes and/or annotations from the remarks
> > > > included within the RCM bulletin.
> > > >
> > > > RCM bulletins contain digitized reflectivity values derived
> > > > from the 2.2 x 2.2 nmi NIDS Composite reflectivity product
> > > > over the radar area of coverage out to 248 nmi based on grid squares
> > > > approximately 5.4 nmi on a side. The reflectivity intensity
> > > > value for each grid box is determined by assigning the maximum
> > > > value of all Composite Reflectivity boxes whose centers
> > > > are contained within the grid square. The RCM message
> > > > comprises 9 intesity categories as follows:
> > > >
> > > > Code Color Plotted (Precip mode)
> > > > 0 ND
> > > > 1 15-30 dBZ 23
> > > > 2 30-40 dBZ 22
> > > > 3 40-45 dBZ 21
> > > > 4 45-50 dBZ 20
> > > > 5 50-55 dBZ 17
> > > > 6 >= 55 dBZ 15
> > > > 7 data beyond 124 nmi that are above threshold
> > > > 8 data beyond 124 nmi that are below threshold
> > > >
> > > > RCM data within a user specified time range are plotted.
> > > >
> > > > RCMFIL is the RCM data file. Bulletins with radar observation times
> > > > in the RCM file will be plotted if the observation time is within
> > > > the range specified by the starting and ending times.
> > > >
> > > > RADTIM (current or dattim) specifies the ending time for accepted
> > > > data.
> > > > RADDUR is the number of minutes prior to the ending time to begin
> > > > accepting data.
> > > >
> > > > DITHER is used to specify the plotting behavior of the reflectivity
> > > > intensities. A value of 0 specifies no dithering, the grid box is
> > > > completely filled. Values 1-4 increase the number of dither points
> > > > per grid box, approaching an increasingly opaque value. Dither
> > > > can be used to overlay image data with radar reflectivity in
> > > > order to simulate transparency. A dither value >= 5 will outline
> > > > the grid box.
> > > >
> > > > MESO specifies the color/marker/size/width/hw for mesocyclones to be
> > > > marked. A color value of 0 is used to turn off mesocyclone plotting.
> > > > Marker attributes behave as MARKER for other plotting programs.
> > > >
> > > > TVS specifies the color/marker/size/width/hw for tornado vortex
> > > > signatures
> > > > to be marked. A color value of 0 is used to turn off TVS plotting.
> > > >
> > > > CNTR specifies the color/size/width for Cell Centroid movement barbs
> > > > (knots).
> > > > A value of 0 is used to turn off centroid plotting.
> > > >
> > > > MAXTOP specifies the color for cell top annotations (feet).
> > > > A value of 0 is used to turn off cell top annotations.
> > > >
> > > > RADINFO specifies the color for radar site operational status
> > > > annotations.
> > > > NA, data not available; OM, out for maintenance; NE, no echoes.
> > > >
> > > > ECHO specifies whether to plot the grid box intesities. A value of 0
> > > > specifies no plotting of echoes; 1 specifies plotting only those
> > > > echoes from radars in precipitation mode; 2 specifies plotting
> > > > of echoes from radars in both precipitation and clear air mode.
> > > >
> > > > GPRCM utilizes the nexrad.tbl station table to determine the radar
> > > > location (not all RCM bulletins contain radar location as of Nov.
> > > > 1999).
> > > > The radars listed in the station table are also used to determine
> > > > which locations are missing (Not Available: NA).
> > > >
> > > >
> > > > EXAMPLES
> > > >
> > > > 1. Draw a Lambert Conformal map of the US.
> > > > Display RCM data from the file rcm.dat. Plot radar observations
> > > > for the past 60 minutes. Display the echo intensities (no
> > > > dithering),
> > > > maxtop values in yellow, and radar status in red. Do not plot
> > > > mesocyclone,
> > > > or TVS locations. Plot the cell centroid motion barbs in white.
> > > >
> > > > GAREA = us
> > > > PROJ = str/90;-105;0
> > > > SATFIL =
> > > > RADFIL =
> > > > LATLON = 0
> > > > PANEL = 0
> > > > TITLE = 1/-1/Radar Summary
> > > > TEXT = 1.3/22/1/hw
> > > > CLEAR = yes
> > > > DEVICE = xw
> > > > RCMFIL = rcm.dat
> > > > RADTIM = current
> > > > RADDUR = 60
> > > > DITHER = 0
> > > > MAXTOP = 5
> > > > RADINFO = 2
> > > > MESO = 0
> > > > TVS = 0
> > > > CNTR = 1/1/1
> > > >
> > > > 2. Overlay the IR satellite imagery with RCM data for the US west
> > > > coast.
> > > > Use a DITHER value of 2 to for moderate transparency. Plot the
> > > > radar
> > > > CLRBAR horizontally above title. Satellite CLRBAR will be
> > > > vertical along
> > > > the left side of the image.
> > > >
> > > > GAREA = ca-
> > > > PROJ = sat
> > > > SATFIL = $SAT/GOES-10/4km/IR/IR_991108_1600
> > > > RADFIL =
> > > > LATLON = 0
> > > > PANEL = 0
> > > > TITLE = 1/-1/Satellite and Radar Composite
> > > > TEXT = 1/22/1/hw
> > > > CLEAR = yes
> > > > DEVICE = xw
> > > > RCMFIL = rcm.dat
> > > > RADTIM = current
> > > > RADDUR = 60
> > > > DITHER = 2
> > > > MESO = 0
> > > > TVS = 0
> > > > CNTR = 0
> > > > MAXTOP = 0
> > > > RADINFO = 0
> > > > ECHO = 1
> > > > CLRBAR = 1/h/cc/.46;.06
> > > >
> > > > ERROR MESSAGES
> > > >
> > > > [GPRCM -1] Fatal error initializing TAE.
> > > > [GPRCM -2] Fatal error reading TAE parameters.
> > > > [GPRCM -3] Fatal error initializing GEMPLT.
> > >
> > > --
> > > ============================================================
> > > Tom Priddy address@hidden
> > > Extension Ag. Meteorologist ph: 606-257-3000ext245
> > > Ag. Weather Center fax: 606-257-5671
> > > 243 Ag. Engineering Bldg
> > > Dept. of Biosystems and Ag. Engr.
> > > University of Kentucky
> > > Lexington, KY 40546-0276
> > > HOMEPAGE http://wwwagwx.ca.uky.edu
> > > ============================================================
> > >
> > >
> > >
>
> --
> ============================================================
> Tom Priddy address@hidden
> Extension Ag. Meteorologist ph: 606-257-3000ext245
> Ag. Weather Center fax: 606-257-5671
> 243 Ag. Engineering Bldg
> Dept. of Biosystems and Ag. Engr.
> University of Kentucky
> Lexington, KY 40546-0276
> HOMEPAGE http://wwwagwx.ca.uky.edu
> ============================================================
>
>
>