Articles | Volume 18, issue 12
Atmos. Chem. Phys., 18, 8893–8908, 2018

Special issue: Sources, propagation, dissipation and impact of gravity waves...

Atmos. Chem. Phys., 18, 8893–8908, 2018

Research article 26 Jun 2018

Research article | 26 Jun 2018

Local time dependence of polar mesospheric clouds: a model study

Francie Schmidt et al.

Data sets

AIM SOFIE data Global Atmospheric Technologies and Sciences (GATS)

AIM CIPS data Laboratory for Atmospheric and Space Physics (LASP)

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.
Final-revised paper