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Lidar soundings of the middle atmosphere: Temperature, gravity waves and noctilucent clouds

Kaifler, Natalie (2019) Lidar soundings of the middle atmosphere: Temperature, gravity waves and noctilucent clouds. Maynooth University Seminar, 15. Feb. 2019, Maynooth, Ireland. (Unpublished)

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Official URL: https://www.maynoothuniversity.ie/news-events/lidar-soundings-middle-atmosphere-temperature-gravity-waves-and-noctilucent-clouds

Abstract

Earth’s middle atmosphere between 10 and 100 km is home to gigantic waves, storms and mysterious clouds. High-repetition soundings with a pulsed Nd:Yag laser at 532 nm (a Rayleigh lidar) open the window into this middle-world between ground and space. We develop such lidars and operate them in world-wide campaigns, including one on a balloon-borne platform in the Arctic. This campaign was focused on turbulent processes within noctilucent clouds. These ice clouds form in the cold polar mesopause region and display rich structure of gravity waves that eventually break and induce turbulence. Gravity waves travel throughout the atmosphere, mostly, but not limited to, excited close to the ground. The worlds hot spot for gravity waves is the Andes region in Patagonia, where one of our ground-based lidars is situated. Gravity waves have a large impact on the energy and momentum budget of the stratosphere and mesosphere and the global circulation. We study gravity waves also in conjunction with an OH airglow imager, providing spatial temperature fields complementing the vertical lidar soundings, and wind measurements by meteor radar soundings.

Item URL in elib:https://elib.dlr.de/126540/
Document Type:Conference or Workshop Item (Speech)
Title:Lidar soundings of the middle atmosphere: Temperature, gravity waves and noctilucent clouds
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kaifler, NatalieDLR, IPAhttps://orcid.org/0000-0002-3118-6480
Date:15 February 2019
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:lidar, gravity waves, noctilucent clouds
Event Title:Maynooth University Seminar
Event Location:Maynooth, Ireland
Event Type:Other
Event Dates:15. Feb. 2019
Organizer:Maynooth University
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):Vorhaben Mittlere Atmosphäre
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Kaifler, Dr. Natalie
Deposited On:18 Feb 2019 09:55
Last Modified:31 Jul 2019 20:24

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