Meteorological data are important in many of the processes simulated in the CMAQ model. The meteorology model that has been selected and evaluated as part of Models-3 to supply this data is the MM5. All of the software in the Penn State/National Center for Atmospheric Research (NCAR) mesoscale modeling system has been dedicated to the public domain and is presently used for both research and operational purposes by many organizations. MM5 was selected to support Models-3 and CMAQ because it is a state-of-the-science meteorological model that is in the public domain of the scientific community. Improvements to MM5 within the meteorological community are on-going, and these enhancements can be evaluated for their applicability to air quality modeling.
MM5 was developed in cooperation with Pennsylvania State University and the University Corporation for Atmospheric Research (UCAR). Penn State and UCAR make no proprietary claims, either statutory or otherwise, to this version and release of MM5, and consider MM5 to be in the public domain for use by any person or entity without any fee or charge. Penn State and UCAR shall be credited in any publications that result from the use of MM5. The names “Penn State” and “UCAR” shall not be used or referenced in any advertising or publicity that endorses or promotes any products or commercial entity associated with or using MM5, or any derivative works thereof, without the written authorization of UCAR and Penn State.
MM5 is provided to the public by Penn State and UCAR on an “as is” basis, and any warranties, either express or implied, including but not limited to implied warranties of non-infringement, originality, merchantability, and fitness for a particular purpose, are disclaimed. Neither UCAR nor Penn State will be obligated to provide support, consulting, training, or assistance of any kind with regard to the use, operation, and performance of MM5, nor to provide any updates, revisions, new versions, error corrections or “bug” fixes. In no event will UCAR and Penn State be liable for any damages, whatsoever, whether direct, indirect, consequential, or special, which may result from an action in contract, negligence, or other claim that arises out of or in connection with the access, use, or performance of MM5, including infringement actions.
Data that are obtained from NCAR (e.g., global analyses and observations) are prepared and maintained by the Data Support Section, Scientific Computing Division, NCAR. NCAR is operated by UCAR and is sponsored by the National Science Foundation. Published research that uses data from the NCAR archive shall credit the maintainers of the archive, and the original source(s) of the data shall be acknowledged.