TABLE OF CONTENTS FOREWORD................................................ Hi ABSTRACT .............................................................. 1 ACKNOWLEDGEMENT........................................................ 2 SUMMARY...................................... .......................... 3 1 INTRODUCTION........................................................ 7 1.1 The Context of the Present Study......... 7 1.2 The Significance of Different Injections....................... 7 1.3 Approach....................................................... 10 2 EFFECTS OF INJECTANTS IN THE 70-120 km RANGE........................ 21 2.1 Introduction...................... 21 2.2 Injectants..................................................... 22 2.2.1 H2O/H2 Injections...................................... 22 2.2.2 NO Production on Reentry (Park)........................ 22 2.2.3 Construction Debris (Whitten).......................... 22 2.3 Water Vapor in the Mesosphere and Lower Thermosphere (Ellsaesser)............................................ 23 2.4 High-Altitude Clouds........................................... 25 2.4.1 Noctilucent Clouds (Ellsaesser, Turco) ................. 25 2.4.2 Nacreous Clouds (Elsaesser)............................ 26 2.5 Condensation and Re-evaporation in Rocket Exhausts............. 27 2.5.1 Prefatory Comments (Bauer) ............................ 27 2.5.2 The Overall Problem (Mendillo) ....................... 27 2.5.3 Experimental Studies, Mainly in Domain B (Pongratz). . . 31 2.5.4 The Current Status (Bernhardt — prepared after the Workshop................................... 32 2.6 Spreading of Rocket Exhaust Clouds: Local, Regional, Zonal and Global Effects (Bernhardt)................................ 33 2.7 Energy and Momentum Transfer Due to Rocket Exhaust Plumes (Forbes)................................................ 36 2.8 Photochemical Effects (Turco) ................................ 36 2.9 Ionospheric Conductivity and Atmospheric Electricity (Vondrak).................................................... 38 2.10 Potentially Important Phenomena (Vondrak) .................... 39 2.11 Atmospheric Experiments ...................................... 40 2.11.1 Water Vapor in the Mesosphere (Sundararaman).......... 40 2.11.2 Noctilucent Clouds (Sundararaman, Turco).............. 40 2.11.3 NO Production on Reentry (Whitten).................... 42 2.11.4 Rocket Observations (Mendillo)........................ 42 2.11.5 Airglow (Zinn)........................................ 43 2.11.6 Cloud Dispersion (Bernhardt).......................... 46 2.11.7 Mesospheric NO (Turco)................................ 46 2.11.8 Conductivity Experiments (Vondrak)..................... 49
RkJQdWJsaXNoZXIy MTU5NjU0Mg==