WHAT IS IT?

   This patch upgrades version 3.1d of the WS Eta to 3.1e.  


WHAT DOES IT REPLACE?

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


   1) A major fix to the surface scheme the WS Eta to improve
      the surface temperature forecasts over snow cover.  The
      new scheme is concurrent with the operational version
      as of January 2003.

   2) The elimination of the explict use of "passive" ftp command.

   3) Now allows the user to control the amount of horizontal
      diffusion and divergence damping in the model run.

   4) Some other small stuff I was sweating.


HOW TO INSTALL THE PATCH 

  To install:

	% mv worketa_soostrc_v31e_patch1.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_v31e_patch1.tar.gz | tar xvf -
    or 
       % tar -xzvf worketa_soostrc_v31e_patch1.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