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The Impact of One- and Two-Moment Microphysical Schemes on Precipitation in an Ordinary Thunderstorm is the title of Emily's research poster. Emily worked with Prof. Susan van Den Heever on her research this summer using the RAMS regional forecasting model.

One- and two-moment microphysical schemes are commonly implemented in atmospheric models that are used for research or forecasting. In one-moment schemes, typically the mixing ratio of a cloud species is predicted, and either the number concentration or diameter is fixed. In contrast, double-moment schemes predict both the mixing ratio of the property and the number concentration. This way, all three properties can vary throughout the cloud, which creates a more realistic simulation. However, most forecast models use single-moment schemes because they are faster and cheaper.

In Emily's study, the sensitivity to the choice of parameters in single-moment schemes was explored through examination of the changes to dynamical and microphysical processes in an ordinary thunderstorm.

Emily came to us from Pacifica, California. She is a senior studying meteorology at San Francisco State University. Among her academic interests are the marine layer, advection fog and cloud physics.

Emily's hobbies include yoga, hiking & camping, cloud watching, bird watching and playing the piano.

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