Nikki Barbee

Meteorology Major

Iowa State University

Student Portfolio


Iowa State University meteorology majors develop capability in six knowledge and skill areas that are considered important for professional and graduate work:


Physics and Dynamics of the Global Atmosphere

Abstract
This project is about tracking large scale waves in the atmosphere at 500 mb. The 500 mb height is important in meteorology and weather forecasting. It is difficult – as with other parts of the atmosphere – to retrieve an idealized amount of data. Also we wanted to compare actual data to Rossby wave theory to see how valid the theory is. The data we collected was every 24 hours. By tracking the wave patterns over a set time period and comparing the patterns to other meteorological variables, it is possible to alleviate the need for as much data as a better understanding is made of the 500 mb waves. Our group classified the 500 mb flow by identifying the integer wave numbers for each 500 mb image. We then used those integer wave numbers to compare to other variables. The variables we compared it to were the upper level wind speed, the date, the amplitude of the waves, and the wave speed. We compared these variables by plotting multiple pairs of variables – usually including wave number as one of the variables. We used the plots to identify different patterns associated with each plotted variable pair. We found that some of our results agree with Rossby wave theory and some don’t. This may be due to measurement error or the fact that the theory makes many approximations. The following is our wave project in greater detail.

  • Waves Project.
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    Application of New Weather Technologies

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    Weather Observing and Analysis

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    Advanced Mathematical Tools

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    Computer Programming and Modeling

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    Effective Oral and Written Communication

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