Lidar observations of the Fe layer and temperatures in the polar mesopause region

Timo Pascal Viehl

doi:10.18453/rosdok_id00001910

Timo Pascal Viehl

Lidar observations of the Fe layer and temperatures in the polar mesopause region

Universität Rostock, 2017

https://doi.org/10.18453/rosdok_id00001910

Abstract: Lidar observations of the mesospheric Fe layer and temperatures have been performed at Davis, Antarctica and ALOMAR, Norway. Large-scale transport is the primary cause of the seasonal variation of the Fe layer. An uptake of metal atoms on ice particles, as well as temperature-dependent chemistry, play secondary roles for the seasonal variation. The regular bottomside extension of the Fe layer in the upper mesosphere and lower thermosphere (MLT) is caused by the direct photolysis of FeOH. Temperature and Fe density observations reveal unexpectedly strong tidal modulations in the polar MLT.

Dissertation Freier Zugang

Titel:

Lidar observations of the Fe layer and temperatures in the polar mesopause region

Beteiligte Personen:

Timo Pascal Viehl[VerfasserIn]
	1135502358
Franz-Josef Lübken , Prof. Dr.[AkademischeR BetreuerIn]
	140754695
	Leibniz Institute of Atmospheric Physics (IAP) at the University of Rostock, Department Optical Soundings and Sounding Rockets
Otto Schrems , Prof. Dr.[AkademischeR BetreuerIn]
	Alfred-Wegener-Institut (AWI), Physics of the Atmosphere

Beteiligte Körperschaften:

Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution]
	2147083-2

Zusammenfassung:

Lidar observations of the mesospheric Fe layer and temperatures have been performed at Davis, Antarctica and ALOMAR, Norway. Large-scale transport is the primary cause of the seasonal variation of the Fe layer. An uptake of metal atoms on ice particles, as well as temperature-dependent chemistry, play secondary roles for the seasonal variation. The regular bottomside extension of the Fe layer in the upper mesosphere and lower thermosphere (MLT) is caused by the direct photolysis of FeOH. Temperature and Fe density observations reveal unexpectedly strong tidal modulations in the polar MLT. [Englisch]

Dokumenttyp:

Dissertation

Einrichtung:

Mathematisch-Naturwissenschaftliche Fakultät

Sprache:

Englisch

Sachgruppe der DNB:

550 Geowissenschaften

Veröffentlichung /
Entstehung:

Rostock

Rostock: Universität Rostock

2017