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MM5 Modeling System Version 3
Version 3 MM5 Change Log
Changes since 3-7:
10/16/06 (Release 3-7-4)
- A fix to the min vegetation fraction. This change has only a
small impact on the snow albedo when using the Noah LSM.
Affected file:
domain/io/rdinit.F
- Fix an out of bounds loop for the top vertical advection for w.
Affect on results is minimal.
Affected file:
physics/advection/simple/vadv.F
11/21/05 (Release 3-7-3)
- Improve Noah LSM's new emissivity treatment by accounting for
emissivity effect in its longwave input. Will give cooler temperatures
over land at night.
Affected file:
physics/pbl_sfc/noahlsm/surfce.F
- Change LANDUSE.TBL to match the one use in WRF.
This new LANDUSE.TBL reduced the albedos for some categories slightly,
which will result in slightly warmer daytime temperatures.
Affected file:
Run/LANDUSE.TBL
- Change the SKINTEMP back to the older method (this is now similar
to the method used in WRF). This may increase the diurnal surface
temperature range by up to 2 C.
Affected file:
physics/pbl_sfc/noahlsm/sflx.F
- Fix a MPI bug for running Noah LSM, with nested domains.
Affected file:
MPP/RSL/parallel_src/bcast_size.F
- Add the -DMPI2_SUPPORT flags to the SGI Altix with Intel compilers
flags. Users that need this flag, also need to download a new
MPP tar file.
Thanks to Gerardo Cisneros (SGI)
Affected file:
configure.user
MPP/RSL/RSL/makefile.altix
05/12/05 (Release 3-7-2)
- Bug fix:
The 3.7.1 updates to the MRF scheme contained a bug weakening
the strength of the boundary layer mixing.
Thanks to Greg Thompson of RAP/NCAR for the fix
Affected file:
physics/pbl_sfc/mrfpbl/mrfpbl.F
- Add -traditional to intel compiler flags
Affected file:
configure.user
04/29/05: (Release 3-7-1)
- Fix to undefined parameters when running over very steep topography
Thanks to Mike Rezny (Cray Australia) and Hee-Sik Kim (Cray Korea)
Affected file:
physics/cumulus/kf2/kfpara2.F
- Changes to MRF routines
1) Change the computation of RLAM to be a function of delta-z
2) Instead of imposed parabolic mixing coeff profile in BL, use
the max of that AND the value computed from local K-theory (the
latter will increase mixing in cloud-topped BLs).
3) Bug fix:
g/theta-v(k) used for local Ri at all
levels, rather than g/theta-v(kl)
Affected file:
physics/pbl_sfc/mrfpbl/mrfpbl.F
- Improved snow albedo's in LANDUSE table
Affected file:
Run/LANDUSE.TBL
- Add byteswap option to Makefile, so this will be feed down
to lower level Makefile.
This change only affect Linux users.
Affected file:
Makefile
- Add compiler options for SGI Altix with Intel compilers and
SGI MPI
Thanks to Dr. Gerardo Cisneros |SGI
Affected file:
configure.user
- Compiler flags for MAC computers (with xlf compilers) added
Affected file:
configure.user
- Change default compiler for MPI linux to f90, as this is needed
for the diffusion scheme
Affected file:
configure.user
- Fix for compiling with OpenMp on Linux machines.
Thanks to Yu-Jin Choi from Arizona State University
Affected file:
physics/advection/simple/hadv.F
- Remove default values for ISTLYR and ISMLYR. These values must
now be specify via the namelist when running ISOIL=2 and =3.
Affected files:
domain/initial/param.F
include/landinp.F
- Increasing the soil heat capacity over urban areas, and using
a higher roughness lenght for urban areas. This is to better represent
the turbulence generated by roughness elements and drag due to
buildings.
Affected files:
Run/LANDUSE.TBL
physics/pbl_sfc/noahlsm/sflx.F
- Change the updating of the z-diffusion scheme to be only calculated
if IFBTER(INEST) is true
Affected files:
domain/nest/feedbk.F
MPP/RSL/parallel_src/mp_feedbk.F
- Fix for IPTDIF and using restart
Affected file:
domain/initsav.F
12/23/04:
Changes in release-3-7:
Changes
made in release-3-7
Note that you should recreate a new deck for V3-7 MM5.
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