Air Mass Trajectories and Atmospheric Radon Measurements during the EOMET/OSP Experiments on San Nicolas Island (1978-1980).
PACIFIC MISSILE TEST CENTER POINT MUGU CA
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The characteristic properties and evolutionary processes of naturally occurring and man-made aerosols is subject of considerable importance for modeling electro-optical propagation through the atmosphere. The Navys effort is centered upon predicting propagation conditions that impact on sensor and communications systems in the marine environment. Since the aerosol properties of an air mass depend primarily upon its source region and upon the alteration is undergoes in transit to the observation site, effective methods for air mass tracing are essential for modeling the atmosphere-optical environment. A series of five electro-optical field programs conducted at San Nicolas Island 1978-1980 afforded an opportunity to compare two independent methods for identifying air mass regimes. One technique utilized measurements of atmospheric radon concentrations as an air mass tracer while the other approach employed a computerized objective analysis scheme to automatically construct surface air trajectories.
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