All of the following have been implemented and/or are currently
undergoing beta-test.
- Add extra EPA CMAQ output variables,
as required for the CMAQ
air quality model: these include surface and 3-D dot
point Jacobians (redundantly, in both the time-independent
(
GRID_[CRO|BDY]_[2|3]D and the time-stepped
MET_[CRO|BDY]_[2|3]D files), and
Jacobian-coupled air and water-vapor densities,
Jacobian-coupled entropy and Jacobian-coupled
contravariant wind components in the
MET_[CRO|BDY]_[2|3]D and
MET_DOT_3D files, respectively.
- For nonhydrostatic versions of MM5, only.
Coding and alpha-test in progress.
- Add CCM2 RTTEN temperature tendency due to
radiation (requires
IFRAD = 3).
- Coding complete; beta-test in progress.
- Add Ohio State LSM
(
ISOIL = 2)
and Pleim-Xiu LSM/PBL
(ISOIL = 3,
IBLTYP(<nest> = 7)) related variables
in MET_CRO_2D.
- For MM5V3 only, and turned on only if OSU or P-X is active.
Undergoing beta-test.
- Add observation height variables TA2,
QV2, UX10,
VX10, and WSPD10,
in MET_CRO_2D.
- For MM5V3 only, and turned on only for MRF PBL:
It turns out that these are very useful for comparing with
observational meteorology, as well as for coupling with
models normally driven by observations. It is also best
done within MM5 PBL schemes, where it can be done
consistently with the rest of the physics. Implementing
this, however, involves PBL-scheme modifications for the
user who wishes to take advantage of it.
Undergoing beta-test. Contact the
authors for information about modifications to
HIRPBL and GSPBL that generate
these variables within those PBL schemes.
- Remove variable RLD from
MET_CRO_2D.
- It turns out that the situation for longwave radiation in
MM5 is more complex than originally thought, including the
fact that the meaning of GLW depends upon
the physics options chosen. RLD is not what we thought it
was, and it looks quite complex to decide just what it
should be, and then to implement that.
COMPLETED (i.e., RLD deleted as an output variable).
- SLPRES option in file
MET_CRO_2D.
- Benjamin-Miller (1990) algorithm for calculating sea level
pressure option, activated by defining preprocessor symbol
MCPL_BMP, which then uses new
routine MM2BMP for the
calculation.
Coding COMPLETED. Undergoing test at this time.
NOTE as of January 2001: Results from it do not
look as good as we'd like, at least running over the
Eastern US at 15KM resolution. BM will be an option but
not one that we recommend nor use as our default.
- UX, VX
- Wind component variables UX, VX at cross points in files
MET_CRO_2D (layer-1
extraction for that file) and
MET_CRO_3D (fully 3-D),
using new routine
MMXUSDV.
Coding COMPLETED. Undergoing test at this time.
- More Detailed KF output
- Since precipitation and updraft/downdraft behavior turn
out to be exceedingly sensitive to the numerics used, the
KF event files now export the KFPARA-internal versions of
layer thickness DZQ and pressure thickness DP0 for the
model layers at cloud inception.
Coding COMPLETED and VALIDATED.
- Task-Parallel MCPL()
- For MM5V2.11 and later (which implement
OpenMP parallelism)
make separate OpenMP tasks for each output file
in MCPL_OUT(). This will allow greater efficiency
on moderately-parallel platforms.
Coding COMPLETED and VALIDATED. On SGI's, requires
obscure run-time flags that set the per-thread stack-size
and memory limits or else it will seg-fault.
- New Variables SLPRS, DZ1000_850, DZ1000_500,
DZ850_700 in file
MET_CRO_2D.
- Compute sea level pressure and thicknesses between the
1000mB and 850mB, 1000mB and 500mB, and 850mB and 700mB
pressure surfaces, and put them out as new variables in
file MET_CRO_2D.
COMPLETED and VALIDATED.
- New file PRES_CRO_3D
- contains 3D decoupled cross-point variables, interpolated
to the standard pressure surfaces. Note that this file
uses a pressure vertical coordinate instead of a sigma
coordinate.
Output variables for this file are controlled by PC3_VARS
COMPLETED and VALIDATED.
- New file PRES_DOT_3D
- contains 3D decoupled dot-point variables, interpolated
to the standard pressure surfaces. Note that this file
uses a pressure vertical coordinate instead of a sigma
coordinate; decoupling of the winds requires that the
output window is a proper window of the MM5 domain (e.g.,
there is no value for PSTAR available at MM5 dot-point (1,1) ).
Output variables for this file are controlled by PD3_VARS.
COMPLETED and VALIDATED.
- More general output-window structure
- supporting multiple output windows per M5 domain. This
will make MM5 more useful to the environmental modeling
community in general (for coupled models work) at the cost
of some additional complexity for run script
configuration.
COMPLETED in version
"C" and later, of MCPL, controlled
by environment variable EM_OUTGRIDS which is
a list of how many output grids there are per MM5 domain,
so that setenv EM_OUTGRIDS 1,2,2,2,3,3,3,3,3,3
says that MM5 domain 1 has 1 output grid, MM5 domain 2 has
3 output grids, and MM5 domain 3 has 6 output grids;
EM_I0 (etc.) will then be expected to be a
list with 1+3+7=10 entries.
COMPLETED and VALIDATED.
- Support for KF cloud event files
- via new
ENTRY MCPL_KF to be called from
MM5 module KFPARA.
COMPLETED in version "KF"
and later, of MCPL. Requires MM5V2.11
or later if MM5 is to be run in parallel (in order for
"critical sections" protecting the (serial)
I/O to the KF-files.
COMPLETED and VALIDATED.