Preliminary Atmospheric Effects Research Task List Est. Complet. Task Priority Date TROPOSPHERIC EFFECTS (Microwave-Related) 1. Identification of possible issues and overall High 9/80 assessment of impact of rectenna operation. 2. Rectenna radiative properties, roughness charac- High 3/79 teristics and energy balance study. 3. Mesoscale model simulation of rectenna heat High 9/80 effects. 4. ’’Cloud Scale” model simulation of rectenna heat High 9/80 effects. 5. Effects of natural atmospheric phenomena on High 9/80 microwave beam propagation (meteo. factors that affect beam wandering, Doppler shift, etc.) 6. Effects of microwave beam on atmosphere in- Medium 9/80 eluding possible heating and evaporation of the ground under conditions of control failure. 7. Use of SPS and ancillary sensors for remote Low Continue sensing of atmosphere. 8. Effects of rectenna operation on atmospheric Low 9/80 electricity and their associated meteorological phenomena. STRATOSPHERIC AND MESOSPHERIC EFFECTS 1. Overall assessment of effects of rocket effluents in stratosphere and atmosphere. High FY 80 2. Prepare detailed rocket exhaust emission inventory, including calculations of afterburning effects. High FY 79 3. Estimate N0x production rate due to reentry as a function of altitude for projected levels of spaceflight activity. High FY 79 4. Estimate (1-D Model) high altitude composition changes due to rocket launch and reentry emissions for various possible CO2 and chlorofluoromethane (CFM) levels predicted for the year 2000 and beyond. High FY 80 5. Estimate (1-D Model) maximum acceptable level of injection of H2O and N0x, for various possible CO2 and CFM levels. High FY 80
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