Frequently Asked Questions
This Web page collects answers to frequently-asked MM5 questions.
If you can't find answers to your questions regarding the MM5 modeling
system in this page, please send e-mail to mesouser at email@example.com.
General Questions about the MM5 Modeling System
I am just starting on the modeling system. Where should I
Click here for information
for new users.
How can I become a registered
How can I subscribe to news regarding the MM5 modeling system?
When filling in the registration
form, you will be asked if you would like to also subscribe
to the firstname.lastname@example.org
mailing lists. Select "Yes" and you will be registered
automatically. Or follow the above links to subscribe/unsubscribe
at any time.
Where can I get the MM5 modeling system documentation?
Follow the "Documents" and "Publications"
buttons on the top navigational bar to all our MM5 Modeling
Or view our short recommended reading
Where can I get a copy of the
most recent version of MM5 modeling system source code?
Can I get a test model input dataset for V3 MM5 to try on
my local machine?
Yes, you can. The
data are available from NCAR's anonymous
The dimensions of the test datasets are IX = 35, JX = 41, KX
= 23 for a 90 km domain, and IXN = 49, JXN = 52, KX = 23 for
a nest domain at 30 km.
Where can I get input data to run program terrain?
Terrain's input datasets for Version 3 are available from NCAR's
Where can I get gridded and observational datasets to run
MM5 modeling system?
If you have a computer account at NCAR, you can use the
If you don't have a computer account at NCAR, you can purchase
data from NCAR. Click here
for more information.
You can find your own data source.
How do I estimate the cost of running pre-processing programs?
Please see the respective questions under each program below.
The cost of running any programs on NCAR's Cray depend on a
number of things. For example, the options you choose for each
program; the job class you use to run the programs, etc.. The
cost estimate given below is based on two examples. In short,
the cost to run TERRAIN and DATAGRID is almost negligible. The
cost can be significant for program RAWINS.
do I get a computer account at NCAR?
need to access the NCAR archive data to run the MM5 model on
my workstation. Who should I contact at NCAR?
Where can I get a copy of
the NCAR GKS Graphic package that is used by several programs
of the MM5 modeling system?
Can I run all MM5 modeling system programs on a Linux machine?
Yes, you can. Currently we support compiler options provided
by Portland Group Inc.
The primary reasons we choose this compiler are 1) it supports
Cray pointers which are used in MM5 model, and a few other programs;
and 2) it has Fortran 90 compiler.
When is the next MM5 tutorial
class and how can I register for the class?
When is the next MM5 users'
workshop and how can I register for the workshop?