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Contour Analysis

Contour Analysis. Nick Bassill February 3 rd 2009. Station Models. These display virtually all the relevant current weather observations for a given weather station http://weather.cod.edu/notes/stnmodel.html. Meanings. Wind Speeds. An Example From Tuesday Morning:

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Contour Analysis

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  1. Contour Analysis Nick Bassill February 3rd 2009

  2. Station Models These display virtually all the relevant current weather observations for a given weather station http://weather.cod.edu/notes/stnmodel.html

  3. Meanings Wind Speeds

  4. An Example From Tuesday Morning: http://www.ral.ucar.edu/weather/surface/

  5. Observations about Observations • Conventionally, only temperature, dewpoint, wind speed and direction, cloud cover, pressure, current weather, and visibility (if less than 10 miles) are shown • However, much of the planet goes unobserved • Large differences in temperature, dewpoint, etc. can exist from location to location • This is why we must do contour analysis in order to “fill in” the missing data

  6. How Do We Do Contour Analysis? • You can think of it like a glorified version of “connect the dots” • However, for contour analysis, we have to “fill in” some of the missing data • The goal of contour analysis is to allow for easier interpretation of the current weather • Some things to remember: - Lines never cross - Always use a pencil so you can erase lines • Now for an example …

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