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  • Author or Editor: Clyde A. O'Dell x
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Merle G. Lloyd, Clyde A. O'Dell, and H. J. Wells

Silver-iodide particles were used to simulate the movement of white-pine blister-rust spores on a white-pine plantation in northern Idaho where long-distance spread of the disease is suspected. It was hypothesized that cold drainage winds were carrying spores down to a relatively warm lake where convective currents carried the spores aloft. The spores were then distributed over the plantation when a favorable upper-air flow prevailed. Silver-iodide particles were released at the suspected source of infection and traced into the plantation.

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Mark J. Schroeder, Michael A. Fosberg, Owen P. Cramer, and Clyde A. O'Dell

This paper reviews the literature on the main aspects of marine air invasion on the Pacific coast. In particular, it considers the sea breeze, Pacific coast monsoon, and airflow over coastal mountains. The major problems associated with marine air invasion are: 1) the relationship of microscale convection, waves, and banded convection- waves to the sea-breeze energetics and sea-breeze front, 2) the interaction of energy forming and dissipating processes from the general circulation down to the micrometeorological scale, 3) the climatology and dynamics of the monsoon, and 4) the mechanism of the lee waves observed in the lee of the heated coastal mountains. Lee waves often form in a statically unstable atmosphere.

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