Noctilucent cloud observations at mid-latitudes by lidar: mean state, variability and relation to MSE and temperature

Details Noctilucent cloud observations at mid-latitudes by lidar: mean state, variability and relation to MSE and temperature Noctilucent cloud observations at mid-latitudes by lidar: mean state, variability and relation to MSE and temperature

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsa41a1596g&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SA41A-1596

Physics

[0340] Atmospheric Composition And Structure / Middle Atmosphere: Composition And Chemistry, [3334] Atmospheric Processes / Middle Atmosphere Dynamics

Scientific paper

Noctilucent clouds (NLC) occur since more than 120 years in every summer between polar and about 50° latitude. NLC observations at mid-latitudes are of particular importance since NLC occurrence is expected to change strongly with only minor variations in temperature and water vapour. Therefore mid-latitude NLC strongly depend on atmospheric waves, trends, and solar cycle. At the Leibniz Institute of Atmospheric Physics at Kühlungsborn, Germany (54°N, 12°E) NLC are observed since 1997 at 532 nm wavelength. Until 2008 the NLC occurrence rate was up to 12%, while 2009 showed record-high 19% NLC occurrence. Nevertheless, NLC are sparse at our latitude. Altogether about 41 h of nighttime NLC observations are collected. We will present mean NLC parameters (altitude, backscatter coefficient) as well as data of the 2009 season showing comparatively frequent and strong NLC. We will discuss the relation to ambient temperatures and wave activity as observed simultaneously by Rayleigh and resonance lidars at our site. Only very few lidar stations are able to measure NLC independent of solar elevation. In 2009 we performed observations of NLC during full daylight. In future, NLC observations during day and night will allow to study for the first time the diurnal variation of NLC parameters at a mid-latitude site. We will present case studies of simultaneous observations of NLC and Mesospheric Summer Echoes as observed by the co-located OSWIN VHF radar.

Affiliated with

Also associated with

No associations

Rating

Noctilucent cloud observations at mid-latitudes by lidar: mean state, variability and relation to MSE and temperature does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Noctilucent cloud observations at mid-latitudes by lidar: mean state, variability and relation to MSE and temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noctilucent cloud observations at mid-latitudes by lidar: mean state, variability and relation to MSE and temperature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1780418