scholarly journals Seasonal variation of turbulent energy dissipation rates at high latitudes as determined by in situ measurements of neutral density fluctuations

1997 ◽  
Vol 102 (D12) ◽  
pp. 13441-13456 ◽  
Author(s):  
F.-J. Lübken
1999 ◽  
Vol 51 (7-8) ◽  
pp. 515-524 ◽  
Author(s):  
C. M. Hall ◽  
U. -P. Hoppe ◽  
T. A. Blix ◽  
E. V. Thrane ◽  
A. H. Manson ◽  
...  

2013 ◽  
Vol 31 (5) ◽  
pp. 775-785 ◽  
Author(s):  
A. Szewczyk ◽  
B. Strelnikov ◽  
M. Rapp ◽  
I. Strelnikova ◽  
G. Baumgarten ◽  
...  

Abstract. From 19 November to 19 December 2010 the fourth and final ECOMA rocket campaign was conducted at Andøya Rocket Range (69° N, 16° E) in northern Norway. We present and discuss measurement results obtained during the last rocket launch labelled ECOMA09 when simultaneous and true common volume in situ measurements of temperature and turbulence supported by ground-based lidar observations reveal two Mesospheric Inversion Layers (MIL) at heights between 71 and 73 km and between 86 and 89 km. Strong turbulence was measured in the region of the upper inversion layer, with the turbulent energy dissipation rates maximising at 2 W kg−1. This upper MIL was observed by the ALOMAR Weber Na lidar over the period of several hours. The spatial extension of this MIL as observed by the MLS instrument onboard AURA satellite was found to be more than two thousand kilometres. Our analysis suggests that both observed MILs could possibly have been produced by neutral air turbulence.


2018 ◽  
Author(s):  
Gerald A. Lehmacher ◽  
Miguel F. Larsen ◽  
Richard L. Collins ◽  
Aroh Barjatya ◽  
Boris Strelnikov

Abstract. Four mesosphere-lower thermosphere temperature and turbulence profiles were obtained in situ within ~ 30 minutes and over an area of about 100 by 100 kilometers during a sounding rocket experiment conducted on January 26, 2015 at Poker Flat Research Range in Alaska. Using active payload attitude control, neutral density fluctuations, a tracer for turbulence, were observed with very little interference from the payload spin motion, and with high precision (


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