Abstract
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.
Highlights
Since first observed by Schmidlin purpose (see e.g., Geoscientific Making use of (M19o76d),etelmDpeeravtuereloinpvemr- entpblootyhintegmspoeurnadtuinregWhiteway et al, 19G95e; Loiusectiael.n, 2t0if0i0c).in situ measurements in the MLT, i.e., emrockets,Mit oisdpeoslsiDbleetvoedliorepctmly meenatsure and turbulence parameters sDimisuclutsasnioenosusly sion layers have been routinely observed in the mesosphere and in the same volume.and lower thermosphere (MLT)
In situ measurements performed during the downleg of the ECOMA09 flight provided simultaneous and high-resolution measurements of neutral air densities, temperatures and turbulence
During the ECOMA09 sounding rocket flight we measured in situ a temperature profile that revealed two temperature enhancements, between 71 and 73 km and between 86 and 89 km altitudes
Summary
Since first observed by Schmidlin purpose (see e.g., Geoscientific Making use of (M19o76d),etelmDpeeravtuereloinpvemr- entpblootyhintegmspoeurnadtuinregWhiteway et al, 19G95e; Loiusectiael.n, 2t0if0i0c).in situ measurements in the MLT, i.e., emrockets,Mit oisdpeoslsiDbleetvoedliorepctmly meenatsure and turbulence parameters sDimisuclutsasnioenosusly sion layers have been routinely observed in the mesosphere and in the same volume.and lower thermosphere (MLT). In situ measurements in the MLT, i.e., emrockets,Mit oisdpeoslsiDbleetvoedliorepctmly meenatsure and turbulence parameters sDimisuclutsasnioenosusly sion layers have been routinely observed in the mesosphere and in the same volume. We present a case study of a temperature ory and observations has been provided byHMyedriwroetlhoegr ayndandfield measured in the MLT region HduyrindgrothleoEgCyOMaAnd2010. These authors have pointed of the considerable progress that has been. A. Szewczyk et al.: MIL and turbulence during ECOMA-2010 turbulence profiles were measured in situ using the CONE instrument on-board the ECOMA payload. Szewczyk et al.: MIL and turbulence during ECOMA-2010 turbulence profiles were measured in situ using the CONE instrument on-board the ECOMA payload The both temperature and turbulence parameters are derived from the same neutral density data. We analysed the data from the Microwave Limb Sounder (MLS) experiment on the Aura satellite which overpassed the launch area around the rocket launch time, to investigate spatial variability of the temperature field
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