Published January 27, 2020
| Version 2019-Yigit
Software
Open
The Middle and Upper Atmosphere Model
- 1. Institute for Meteorology, Universität Leipzig, Germany
- 2. Department of Physics and Astronomy, Space Weather Lab, George Mason University, Fairfax, VA, USA
Description
The Middle and Upper Atmosphere Model (MUAM) is a mechanistic, 3-D general circulation model extending from the 1000hPa surface to about 160km in log-pressure height with a constant scale height of 7km and vertical spacing of about 2.8km. It is run at the Institute for Meteorology at Universität Leipzig, Germany.
The lower levels up to 30km height are nudged with 2000-2010 mean monthly mean ERA-Interim zonal mean temperature fields (data not included in the source code) to correctly represent the dynamics in the lower atmosphere. Solar and infrared radiative processes are parameterized according to Strobel (1978) and Fomichev and Shved (1985), respectively. In the present version, gravity waves are parameterized after Yiğit et al. (2008).
Files
MUAM2019.zip
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Additional details
References
- Lilienthal, F., Jacobi, C., and Geißler, C.: Forcing mechanisms of the terdiurnal tide, Atmos. Chem. Phys., 18, 15 725–15 742, https://doi.org/10.5194/acp-18-15725-2018, 2018.
- Yiǧit, E., Aylward, A. D., and Medvedev, A. S.: Parameterization of the effects of vertically propagating gravity waves for thermosphere general circulation models: Sensitivity study, J. Geophys. Res., 113, D19 106, https://doi.org/10.1029/2008JD010135, 2008.
- Pogoreltsev, A. I.: Generation of normal atmospheric modes by stratospheric vacillations, Izvestiya, Atmospheric and Oceanic Physics, 43, 423–435, https://doi.org/10.1134/S0001433807040044, 2007.
- Pogoreltsev, A. I., Vlasov, A. A., Fröhlich, K., and Jacobi, C.: Planetary waves in coupling the lower and upper atmosphere, J. At- mos. Sol.-Terr. Phys., 69, 2083–2101, https://doi.org/10.1016/j.jastp.2007.05.014, 2nd IAGA/ICMA on Vertical Coupling in the Atmo- sphere/Ionosphere System, Varna, BULGARIA, SEP 18-22, 2006, 2007.