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Radiation Fog

Radiation Fog

This is the first instructional component to be published in the Physical Processes Professional Competency Unit of the Forecasting Low-Altitude Clouds and Fog for Aviation Operations Professional Development Series. The learning modules in this professional competency unit will help aviation forecasters gain more familiarity with the physical concepts and atmospheric conditions related to fog and low stratus life cycles. Such understanding, in turn, can help forecasters more efficiently and accurately evaluate the ability of a given atmospheric environment to generate and/or maintain radiation fog. Radiation Fog presents presents the physical processes and life cycle of radiation fog, including its preconditioning environment, initiation, growth, and dissipation. The processes include radiation (both solar and longwave), soil-atmosphere thermal interactions, turbulent mixing, the roles of condensation nuclei, and droplet settling. Each section includes a set of interactive questions based on the learning content presented.


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