WHAT IS IT?

   This patch upgrades version 3.1e of the WS Eta to a pre-release
   version of 3.1f (beta).  

WHY A PRE-RELEASE?

   Because I have not included enough changes to justify a full
   release. However, a number of offices have been requesting the 
   modifications and enhancements described below so I decided to 
   make a beta version available to the WFOs. Everything has been
   doctor tested and mother approved so you should not have
   any problems even though this is officially a beta release.

WHAT DOES IT REPLACE?

   There are a few minor bug fixes and error checking to the 
   scripts in the $ETA_SCRIPTS directory.  In addition, there is

   1) The ability to send a subset of the forecast output to AWIPS
      via RCP, FTP, and (now) CP.  If you are creating 1-hourly
      forecasts for BUFR file generation you can now send 3-hourly
      forecasts to AWIPS and GEMPAK.

   2) Fixed problem with accumulated precipitation in AWIPS
      files in the situation above.

   3) A modified version of wgrib is now provided to allow users to
      inspect the contents of the WS Eta grib files.  A "-W"
      argument has been added to compute and display the grid
      navigation information. replaces the use of the gempak routine
      "gdinfo".  You will now get valuable infomation like:

       WS Eta GRID NAVIGATION INFORMATION FOR AWIPS
 
         Lambert Conic Conformal Projection
         Grid Center             :  40.000, -105.500
         Lower Left  (SW) Corner :  37.748, -108.720
         Upper Right (NE) Corner :  42.139, -101.813
         Grid Dimensions (NXxNY) :  109x91

   4) Now MUCH easier to determine the proper grid navigation for
      AWIPS.  When running eta_convert.csh the CORRECT navigation
      information is printed on the screen along with arguments
      for running maksuparg.

   5) When sending data to AWIPS a *.cdl file is created with the
      correct grid dimensions.

   6) The WS Eta version number is displayed when running eta_run.csh
      and eta_convert.csh.

   7) Some other small stuff I was sweating.


HOW TO INSTALL THE PATCH 

NOTE: If you have not kept up with WS Eta releases please give
one meaculpa and install the cumulative patch.  Simply replace
worketa_soostrc_v31f_patch.tar.gz in the instructions below
with worketa_soostrc_v31_cumulative_patch.tar.gz. You will
still need to install the 31f binaries if you don't have a 
compiler.

  To install:

	% mv worketa_soostrc_v31f_patch.tar.gz $WS_ETA
        % cd $WS_ETA

  Installing the patch will overwrite any changes you have made
  to the scripts (eta_download.csh, eta_run.csh, etc.) in the run_time
  directory.  Before continuing with the installation I suggest that
  you save these files for reference:

        % mkdir run_time.orig
        % cp run_time/*.csh  run_time.orig

  Now proceed with the installation

       % zcat worketa_soostrc_v31f_patch.tar.gz | tar xvf -
    or 
       % tar -xzvf worketa_soostrc_v31f_patch.tar.gz

  Then

       % eta_clean 3

  Finally, reconfigure the run-time scripts in the $ETA_RUN directory
  using your previously saved settings in run_time.orig.


IF YOU ARE RUNNING THE SOO/STRC BINARIES:

  If you are running a binary distribution of the WS Eta you will need to
  reinstall an updated binary release. Note that with the release of 3.1d
  all linux libraries  have been statically linked so there is no need for
  distributions for each linux kernel. If you have any problems let be know.


LOCALLY COMPILED DISTRIBUTIONS:

  If you are running a locally compiled distribution you will need
  to recompile the model. First edit the $WS_ETA/src/config/dimensions.conf,
  $WS_ETA/src/config/nest_dimensions.conf, and  $WS_ETA/src/config/Makeinc.{OS}
  for your grid dimensions. Then,

       % cd $WS_ETA
       % make clobber
       % make clobber_nest
       % make all
       % make nest

   or just

       % make clobber clobber_nest all nest