Markus Rapp and Franz-Josef Lübken Leibniz-Institut für Atmosphärenphysik (IAP) an der Universität Rostock Kühlungsborn Stefanos Fasoulas Institut für.

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Markus Rapp and Franz-Josef Lübken Leibniz-Institut für Atmosphärenphysik (IAP) an der Universität Rostock Kühlungsborn Stefanos Fasoulas Institut für Raumfahrtsysteme (IRS), Universität Stuttgart WADIS - Wave propagation and dissipation in the middle Atmosphere: Energy budget und distribution of trace gases funded by DLR- Space Agency:

Motivation

0 km 50 km 100 km Model: Erich Becker, IAP Sommer Winter Sommer Winter Residual Circulation because of wave-mean flow interaction: Small scale dynamics (Waves and Turbulence) affects global fields

Open issues

Propagation issues Winter:Existing techniques for wind measurements: Sommer: WADIS will use all of these methods at the same time!

Criteria for instabilities? Paradigm: A wave/flow turns unstable  -Static instability (heavy air above light air) -Dynamic instability (large wind shear) Characterized by vertical distribution of T, u !!!

Criteria for instabilities? Achatz, Adv. Space Res. 2007

Influence on trace gas distributions Source: Photolysis of O 2 in SR-Band ( nm) and SR-Continuum ( nm) Sink: 3-body recombination O+O+M -> O 2 + M O+O 2 +M -> O 3 + M

Contribution to the energy budget Mlynczak (1996) Dissipation of GW Exothermal reactions of O Photolysis of O 2

Aims of WADIS Measurement of the propagation and dissipation of GW in the range 0 – 100km Quantify the contribution of these waves to the energy budget First educated guesses on horizontal structures of turbulence Quantify the contribution of O to the energy budget (Determine the deactivation rate of CO 2 * (15  m) + O by comparison to satellite IR-data)

Experimental Concept

General concept 2 Campaigns: 1x winter (Jan./Feb. 2012), 1x spring transition (April/May 2013) Per Campaign: 1 Salvo consisting of ~10 meteorological rockets for high resolution wind measurements and 1 instrumented rocket for the measurement of densities, temperatures, turbulence and atomic oxygen Combine with unique new ground based facilities (DORIS & MAARSY) Combine with SABER/TIMED overflight

The WADIS payload 14‘‘ payload with identical instrumentation on front and rear decks Je 1 x CONE, 1 x FIPEX und 1 x PHLUX + small additional instruments Measurements on up- and downleg (first crude horizontal information)

Instrumentation

CONE (COmbined sensor for Neutrals and Electrons) time constant ~ ms altitude resolution  10 cm Precision  0.1 % I CONE ~ local neutral density I e ~ local electron density

FIPEX and PHLUX: Atomic oxygen Fasoulas et al., 2010 Herdrich et al., 2010 FIPEX Based on electro- chemical processes PHLUX Based on catalytic Properties of materials

Instrumentation to study & Collab. Rayleigh-Lidar 100km Summer: PMSE; ~100% Winter: PMWE; >10% Troposp. MAARSY OH-airglow/NLC Meteor/MF-radar Resonance -Lidar Met-rockets Radio-s. Hfr: Turbulence, T Radar-gap