edu.ucar.opensky::technotes:502 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T04:02:20.614004 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7t43sjs Scientific documentation of the NCEP nonhydrostatic multiscale model on the B grid (NMMB). Part 1 Dynamics 2012-04-01T00:00:00Z publication https://n2t.org/ark:/85065/d7t43sjs https://doi.org/10.5065/D6WH2MZX Janjic, Z. author Gall, Robert L. author UCAR/NCAR - Library publisher This technical note focuses on the scientific and algorithmic approaches in the NMMB dynamics. Discussed are the NMMB dynamics solver, boundary conditions and the horizontal diffusion and other dissipative processes. The other components of the NMMB such as physical package, data assimilation, verification and the software framework are discussed elsewhere. The NMMB dynamics solver includes fast waves, advection, thermodynamic processes, a nonhydrostatic add-on module, lateral diffusion, horizontal divergence damping, coupling of the sub-grids of the semi-staggered grid B, boundary conditions, polar filtering and nesting capabilities. It also includes transport of various components of the atmosphere such as moisture variables and other tracers. This system together with various options for physics, initialization and post processing are combined within the NEMS framework to produce end-to-end multiscale simulations. The Developmental Testbed Center (DTC) and the Joint Numerical Testbed (JNT) Program in NCAR's Research Applications Laboratory supported the preparation of this Technical Note. Dr. Robert Gall is a UCAR employee who was the first National Director the DTC and formerly the Director of the JNT Program. He currently is on assignment as the Development Manager, Hurricane Forecast Improvement Program, NOAA/OST, Silver Spring, MD. Zavisa Janjic is affiliated with the Environmental Modeling Center, National Centers for Environmental Prediction, College Park, MD. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Weather research/forecast models theme U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2021-09-17 revision 11.2 NASA Global Change Master Directory originator Valids List: Science and Services Keywords Copyright Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation