Articles | Volume 18, issue 12
https://doi.org/10.5194/acp-18-8893-2018
https://doi.org/10.5194/acp-18-8893-2018
Research article
 | 
26 Jun 2018
Research article |  | 26 Jun 2018

Local time dependence of polar mesospheric clouds: a model study

Francie Schmidt, Gerd Baumgarten, Uwe Berger, Jens Fiedler, and Franz-Josef Lübken

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Cited articles

Baumgarten, G., Fiedler, J., Lübken, F.-J., and von Cossart, G.: Particle properties and water content of noctilucent clouds and their interannual variation, J. Geophys. Res.-Atmos., 113, D06203, https://doi.org/10.1029/2007JD008884, 2008.
Baumgarten, K., Gerding, M., Baumgarten, G., and Lübken, F.-J.: Temporal variability of tidal and gravity waves during a record long 10-day continuous lidar sounding, Atmos. Chem. Phys., 18, 371–384, https://doi.org/10.5194/acp-18-371-2018, 2018.
Berger, U.: Modeling of middle atmosphere dynamics with LIMA, J. Atmos. Sol.-Terr. Phy., 70, 1170–1200, https://doi.org/10.1016/j.jastp.2008.02.004, 2008.
Berger, U. and Lübken, F.-J.: Trends in mesospheric ice layers in the Northern Hemisphere during 1961–2013, J. Geophys. Res.-Atmos., 120, 11277–11298, https://doi.org/10.1002/2015JD023355, 2015.
Berger, U. and von Zahn, U.: Icy particles in the summer mesopause region: Three-dimensional modeling of their environment and two-dimensional modeling of their transport, J. Geophys. Res., 107, 1366, https://doi.org/10.1029/2001JA000316, 2002.
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Short summary
Local time variations of polar mesospheric clouds (PMCs) in the Northern Hemisphere are studied using a combination of a global circulation model and a microphysical model. We investigate the brightness, altitude, and occurrence of the clouds and find a good agreement between model and observations. The variations are caused by tidal structures in background parameters. The temperature varies by about 2 K and water vapor by about 3 ppmv at the altitude of ice particle sublimation near 81.5 km.
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