
You will find descriptions of the changes to the LITTLE_R version 3
source code in this file. Each release will be a complete tar file
such as this. 

The current release is 3.7 (December 23, 2004)

========================================================

Bug fixes and changes in V3.7:

- Set min RH value to 1%. If min RH of 5% was used in REGRID,
  the min RH value in LITTLE_R will be around 5%.

  Affected files:
  src/final_analysis_module.F
  src/proc_oa.F 

- Add traps on bad data, to ensure this does not put the program in
  an infinite loop.

  Affected file:
  src/obs_sort_module.F

- Use -q64 on IBM to allow processing of global datasets.

  Affected file:
  Makefile

- Add INTEL compiler flags. Default on Linux machines remain PGI.
  To compile with INTEl, type "make intel"

  Affected files:
  Makefile
  src/proc_obs_sort.F

- New utility routine to limit observations within a window domain.
  Need to be compiled separately, and the window size in terms
  of latitude and longitude boundaries is editted directly 
  in the routine.

  Affected file:
  util/window_obs.F

========================================================

Bug fixes and changes in V3.6:

- Add a fix so that impossible location observations 
  (like pole for Mercator) are detected and skipped.

  Affected files:
  src/obs_sort_module.F, proc_obs_sort.F

- Correct the direction computation for the diagnostic 
  output in plot_sounding.

  Affected files:
  src/obs_sort_module.F, proc_obs_sort.F

- Correct a problem of using expanded domain in FDDA output.
  (Change in the tar file since Dec 19, 2001.)

  Affected file:
  src/final_analysis_module.F

- Correct two minor problems when compiling on Cray.

  Affected files:
  src/module_header.F, plot_level.F, tinterp_module.F

- Update default namelist to allow 4 scans in Cressman scheme.
  (In TAR file since 12/12/01)

  Affected file:
  namelist.input

- Add batch job script for NCAR's IBM. This deck is available on
  NCAR's computer under ~mesouser/MM5V3/IBM.


========================================================

Bug fixes and changes in V3.5:

- Add surface analysis FDDA option by setting f4d = .T. and select
  lagtem similar to that in RAWINS. To use this option, a user must
  provide seperate surface observation files for the time periods
  analyzed. See README, and Doc/README.namelist, and README.test_case.

- Allow all 2D and 3D fields that are not analyzed to pass through
  the program. This will enable a user to pass through, for example,
  microphysics fields through the program.

- Take input from INTERPB output (MMOUTP files).

- Remove the limit on the number of analysis time periods processed.

- Use new map routines from Brent Shaw of FSL/NOAA.

- Add sounding and horizontal plots capability using NCAR Graphics.
  See Doc/README.plot for more information.

- New fetch deck for IBM in LITTLE_R/util/: fetch.deck.ibm 

========================================================

Bug fixes and changes in V3.4:

- Change dates used to be the same as other pre-processing programs.

  Affected files:
  src/namelist_module.F, namelist.nml, namelist.inc, namelist.common

- Make the program recognize the new field called SKINTEMP.

  Affected files:
  src/first_guess_module.F, final_analysis_module.F

- Outputs an extra file to be used for plotting all obs.

  Affected files:
  src/proc_oa.F

- Add compile options for Linux. Also, in order to work with 
  Portland Group compiler, some modification is made to the code.
  (Changes in tar file since 06/07/00.)

  Affected files:
  Makefile
  src/Makefile, proc_final_analysis.F, proc_final_analysis.int,
  src/proc_qc.F, date_pack_module.F, obs_sort_module.F,
  src/qc0_module.F, qc1_module.F, qc2_module.F, qc3_module.F

  (Each of the qc[0-3]_module.F is part of original qc_module.F file.)

- Simplified the way make is done. One only needs to type 'make'
  to compile on your particular machine.
  (Changes in tar file since 06/07/00.)

  Affected files:
  Makefile
  configure.rules (new)
  src/Makefile

==========================================================

Updated 01/25/00:

- Correct an error when polar stereographic projection is used
  in southern hemisphere.

