The PSU/NCAR mesoscale model (MM5)


IN DRAFT - May include in future


The PSU/NCAR mesoscale model (known as MM5) is a limited-area, nonhydrostatic, terrain-following sigma-coordinate model designed to simulate or predict mesoscale atmospheric circulation. The model is supported by several pre- and post-processing programs, which are referred to collectively as the MM5 modeling system. The MM5 modeling system software is mostly written in Fortran, and has been developed at Penn State and NCAR as a community mesoscale model with contributions from users worldwide.

Latest Version 3
State of Development Released and updated

Development Contact


Steady State or Dynamic Unknown

Input & Output Data


Open/Closed Source Please Select

User Information

User Interface Please Select
Ease of Use Difficult Level of Expertise the User Should Have:
1) The user should have some experience with numerical modeling of the atmosphere.
2) The user should have an understanding of atmospheric science at the MS level.
3) The user should have basic UNIX knowledge.
4) The user should have basic FORTRAN 77 and 90 knowledge.
5) No previous experience in the MM5 model is required. It is strongly recommended for a new user to learn MM5 modeling system program from the online tutorial, and attend a tutorial class, which is offerred twice a year.

Technical Considerations