MM5 Modeling System Version 3
Version 3 Regrid Change Log
12/23/2004:
Changes in release-3-7:
Changes
made in release-3-7.
Changes since release-3-6:
03/04/03:
pregrid:
regridder:
-
Allow polar-projection data to have origin location defined
other than (1,1).
-
Check for large positive values for masked fields.
-
Prevent negative values of seaice.
-
Minor change to accomodate Sun compiler.
12/27/02:
Changes in release-3-6:
Changes made in release-3-6.
Changes since release-3-5:
05/17/02:
04/16/02:
01/17/02:
12/19/01:
12/5/01:
Changes in release-3-5:
Changes made in release-3-5.
Changes since release-3-4:
01/31/01:
11/6/00:
Changes in release-3-4:
Changes made in release-3-4.
Changes since release-3-3:
7/18/00:
-
Remove soil temperature adjustment based elevation difference
in the incoming dataset (such as those in Eta's AWIP data and
NNRP data) and MM5 model terrain as the soil temperature is
adjusted in MM5 model at the present. (This change will be reinstated
in future release. At that time, MM5 model will be changed accordingly.)
The error was introduced to the REGRID tar file on 6/7/00. But
please check to see if your routine (name listed below) is correct
- search for 006 in your routine; if you don't find it, you
are ok. This affects LSM runs only. Larger impact on NNRP data
than AWIP data due to the coarser resolution of NNRP data -
click here to see the difference
plots.
6/30/00:
6/07/00:
4/05/00:
3/13/00:
Changes in release-3-3 (2/11/00):
pregrid:
-
A new storage.F routine in pregrid/ncep.grib directory. This
new routine works better on machines where the old routine might
encounter difficulty.
-
Adapt to Sun's compiler so that it can read the namelist file
on a Sun.
regridder:
-
Correct errors in interpolation using Lambert-Conformal projection
cross dateline, and in the southern hemisphere.
-
Allow input data with Mercator projection.
-
Clean up memory allocation/deallocation, constant initialization
for speculative machines.
-
Allow choice of linear or quadratic horizontal interpolation
of fields.
-
Option to change the water to land use category for permanent
ice if the SST is colder than a given threshold. If the sea
ice field exists, this is set to 1 at that location. Please
see an example in Doc/README.namelist.
-
Masked interpolations have been modified. The soil moisture
will not use values larger than 0.5. The soil temperature uses
a combination of the TEMPGRD (if it exists) and the latitude
to determine missing values (such as over small islands).
-
The SNOWCOVR field can be computed from the SNODEPTH field.
-
A constant file is provided in the namelist to allow users
to have a single time of a field that is not reported frequently
(such as snow cover or SST) used throughout the analysis.
Changes in release-3-2 (9/27/99):
pregrid:
regridder:
-
Allows constant snow/sst fields
-
This will allow one-time level SST and/or snow cover available
for regridder to process for the rest of time levels. For details
how to do so, please see Doc/README.namelist
-
Fixes rotated winds from Eta
-
This is an error correction for Eta model data. Wind direction
was in error and error would increase from the central longitude
of the original projection.
-
Allows combination of data sources
-
This allows the capability to use 3D analyses from one data
source (such as NCEP's ON84) and soil temperature/moisture data
from another (such as NNRP). To do this, place the primary dataset
first in the namelist after 'root'. For example, if one is trying
to combine ON84 and NNRP data, define root as:
-
Missing soil temps (islands) based on TEMPGRD
-
Regridder now fills the soil temperature over small islands
(which the coarse input data from global analysis doesn't resolve)
with the annual mean deep soil temperature from Terrain. only
5 min and 30 sec data are requested.
|