Lidar observations of temperatures, waves, and noctilucent clouds at 69° N

Jens Fiedler; Gerd Baumgarten; Gotz von Cossart; Armin Schoch

doi:10.1117/12.564772

30 November 2004 Lidar observations of temperatures, waves, and noctilucent clouds at 69° N

Jens Fiedler, Gerd Baumgarten, Gotz von Cossart, Armin Schoch

Proceedings Volume 5571, Remote Sensing of Clouds and the Atmosphere IX; (2004) https://doi.org/10.1117/12.564772
Event: Remote Sensing, 2004, Maspalomas, Canary Islands, Spain

Abstract

The ALOMAR Rayleigh/Mie/Raman (RMR) lidar is an active remote sensing instrument for the investigation of the Arctic middle atmosphere during day and night. It is located in Northern Norway and operated on a routine basis to measure relative density profiles and aerosol properties in the stratosphere and mesosphere since 1995. Temperature profiles derived from the density measurements assuming hydrostatic equilibrium are used to investigate the mean temperature structure as well as gravity waves in the polar middle atmosphere. During the last two years, temperature data were acquired for approximately 2100 hours. A subset of this data basis was used to determine the potential energy density to characterize the gravity wave activity above the station. Noctilucent clouds (NLC) are the highest clouds of the Earth's atmosphere and a visible sign of extreme atmospheric conditions with temperatures far below radiative equilibrium. During the last 7 years a continuous data set with 1880 measurement hours was acquired during the summer seasons, of which 640 hours contain NLC signatures. This actually most extensive lidar acquired NLC archive was analyzed regarding brightness, altitude, vertical extent, as well as occurrence frequency of noctilucent clouds above ALOMAR.

Citation Download Citation

Jens Fiedler, Gerd Baumgarten, Gotz von Cossart, and Armin Schoch "Lidar observations of temperatures, waves, and noctilucent clouds at 69° N", Proc. SPIE 5571, Remote Sensing of Clouds and the Atmosphere IX, (30 November 2004); https://doi.org/10.1117/12.564772

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available