A Description of the MYNN-EDMF Turbulence Scheme

Olson, Joseph B.; Angevine, Wayne M.; Turner, David D.; Sun, Xia; Simonson, Julia M.; Evans, Clark; Kenyon, Jaymes S.; Li, Haiqin; Schnell, Jordan; Puhales, Franciano S.; Cherubini, Tiziana; Li, Weiwei; Zhang, Man

doi:10.25923/rahr-sj70

i

A Description of the MYNN-EDMF Turbulence Scheme

Supporting Files

2026
By Olson, Joseph B. ; Angevine, Wayne M. ; Turner, David D.
Series: NOAA technical memorandum OAR GSL ; 77

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Personal Author:

Olson, Joseph B. ; Angevine, Wayne M. ; Turner, David D. ; Sun, Xia ; Simonson, Julia M. ; Evans, Clark ; Kenyon, Jaymes S. ; Li, Haiqin ; Schnell, Jordan ; Puhales, Franciano S. ; Cherubini, Tiziana ; Li, Weiwei ; Zhang, Man
Corporate Authors:

Global Systems Laboratory (U.S.) ; University of Colorado Boulder. Cooperative Institute for Research in Environmental Sciences. ; Developmental Testbed Center. ; Universidade Federal de Santa Maria. ; University of Hawaii at Manoa. ; National Center for Atmospheric Research (U.S.)
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; GSL (Global Systems Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

This document overviews the current state of the MYNN-EDMF, including the eddy diffusivity, mass flux (both up- and down-drafts), subgrid cloud representation, numerical procedures, the interactions/coupling between subcomponents, aspects of the practical tuning required for general operational use, the coupling to other physical parameterizations used within a typical physics suite, and a high-level code description. This memorandum serves as a vastly updated description of the MYNN-EDMF, but for the sake of continuity, is patterned after the previous Olson et al. (2019a) technical memorandum.
Keywords:
- MYNN
- EDMF
- Turbulence
- Parameterization
- Clouds
- Plumes
- HRRR
Series:

NOAA technical memorandum OAR GSL ; 77
DOI:

https://doi.org/10.25923/rahr-sj70
Format:

pdf
Document Type:

Technical Memorandum
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Compliance:

Submitted
Download URL:

https://repository.library.noaa.gov/view/noaa/72267/noaa_72267_DS1.pdf
File Type:

[PDF - 1.56 MB]
Collection(s):

Office of Oceanic and Atmospheric Research (OAR) ; NOAA Cooperative Institutes
Main Document Checksum:

urn:sha-512:22ae09dc0296d25fbd725f4f1f7d5fd05c0de00d2562ba0f02be32d4ec7924c8a7b50d5e1ef07144f0feb63cb79a4f61aa551af66f2df59ed84724fa6d6fb44b

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