The atmospheric effects assessment is conveniently divided into three major task areas: • Non-microwave effects on the Upper Atmosphere (Mesosphere and Above), • Microwave-Related Effects on the Lower Atmosphere (Primarily Troposhere), and • Other Effects on the Lower Atmosphere (Troposphere and Stratosphere). 3.2 METHODOLOGY The approach to the task areas defined above involves two major phases. The initial phase is one of identification of cause and effect relationships and preliminary assessment of the importance of such effects to mankind and to the environment based on existing knowledge. In addition to reviewing and compiling existing information, theoretical investigations will be conducted that include analysis of relevant existing data and simulation with existing modeling techniques. This phase will also identify areas requiring additional information (through experimental and theoretical investigations) and a list of priorities for future research. Several workshops have been held at ANL to solicit scientific opinions on effects in the: • Upper Atmosphere (Aug. 28-30, 1978), •Stratosphere (Sept. 6-8, 1978), and • Troposphere (Sept. 12-14, 1978); and those associated with • Rectenna operations and microwave related phenomena in the lower atmosphere (Aug. 23-25, 1978). The initial phase of the program is in progress and is expected to be completed by Oct. 1978. Phase 2 of the approach will involve the acquisition and analysis of additional information necessary for the completion of the atmospheric effects assessment by the end of FY 80. This phase will include field and/or laboratory experiments in conjunction with theoretical modeling studies utilizing refined modeling methods as required. Section 3.5 describes the research plan for the program.
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