 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *                                                                 *
 * Copyright (C) 1999-2004 Timothy E. Dowling                      *
 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
 * modify it under the terms of the GNU General Public License     *
 * as published by the Free Software Foundation; either version 2  *
 * of the License, or (at your option) any later version.          *
 * A copy of this License is in the file:                          *
 *   $EPIC_PATH/License.txt                                        *
 *                                                                 *
 * This program is distributed in the hope that it will be useful, *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of  *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.            *
 *                                                                 *
 * You should have received a copy of the GNU General Public       *
 * License along with this program; if not, write to the Free      *
 * Software Foundation, Inc., 59 Temple Place - Suite 330,         *
 * Boston, MA  02111-1307, USA.                                    *
 *                                                                 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

=====================================================================
The Explicit Planetary Isentropic Coordinate (EPIC) Atmospheric Model
                        Version History
=====================================================================

============
Version 3.85
============

  1) Changed spot definition parameters

  2) Updated Jupiter data

  3) Updated Hot-Jupiter option and data

  4) Added recursive data analysis flag

  5) Added diferent options for the vertical structure of the zonal winds

  6) Added sinusoidal heating function

  7) Fixed Makefiles bugs

  8) Fixed mpi/lam compilation

============
Version 3.81
============

P. Stratman (10/29/99):

  1) Fixed .nc data axis definition bug.
  
  2) Fixed N^2 calculation, added function get_brunt2().
  
  3) Added ncread_vanilla.idl as a sample IDL program
     for reading and plotting epic.nc files.
  
  4) Added rain() subroutine to remove excess condensate from
     the atmosphere (latent heating affects are neglected, excess
     condensate is removed from model).
     
  5) Created methane_mass() subroutine to verify conservation
     of mass when rain() subroutine is in effect.
     
  6) Added enthalpy_condensation() subroutine to calculate latent
     heat of condensation per unit mass. This function is not
     used, but is available for use.

===========
Version 3.8
===========

T. Dowling (7/15/98):

  1) Incorporated P. Gierasch's saturation vapor-pressure fortran 
     functions.

  2) EPIC files are now stored using the netCDF standard 
     (Network Common Data Format). 

  3) Added chemical_elements.h, which contains the atomic numbers,
     names, symbols, molar masses (atomic weights), and solar 
     abundances of the elements.

  4) Added specific humidities (water, ammonia, methane, etc.)
     as optional prognostic variables.
 

===========
Version 3.7
===========

T. Dowling (4/28/98):

  1) Added virial equation of state. The choices are now "ideal" and
     "virial."

  2) 1st and 2nd time steps now use 1st and 2nd order Adams-Bashforth
     steps, instead of a cold start (zero tendencies) for the model's 
     3rd order Adams-Bashforth time step.

  3) Switched from rsh to ssh (secure remote shell) for EPIC_Receive
     AVS module.

  4) MPI-usage bugs fixed (e.g., fclose() outside of if(iamnode==0)).

  5) Voyager velocity data files for Jupiter's Great Red Spot and White 
     Oval BC now included in $EPIC_PATH/data/jupiter.

===========
Version 3.6
===========

T. Dowling (4/28/98):

First version posted on the NASA Planetary Data System (PDS)
Atmospheres Node.

The EPIC Model is described in Dowling et al (1998, Icarus 132, 221-238) 
"The Explicit Planetary Isentropic Coordinate (EPIC) Atmospheric Model."

C. Santori (5/30/97):

 1) u_vs_lat.saturn: u at 89S latitude changed from 16.20 to 16.30.
 2) mqspec structure added to epic.h.
 3) Definitions of initialization types (search for SORPTOP) added to epic.h.
 4) Function prototypes for mont_from_q and low_mode added to epic.h.
 5) epic_init_funcs.c replaced entirely.
 6) Section inside "else if (grid.init_type == USE_Q_VS_M) {" replaced.
 7) epic_init_eigen.c added to epic/src/shared.
 8) Makefile.epic: epic_init_eigen.c added, mimicking epic_init_funcs.c.
 9) Spinup questions removed for case Q(M).
10) New defaults added.


