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Height Matters

Height Matters. Wind, Temperature, and Humidity. Pressure. Pressure Exercise. Using the equation Given p z = 1010 hPa T = 290 K g = 9.81 m s -2 R a = 287.05 J kg -1 K -1 e = 2.718281 Calculate the surface pressure (p s ) for your vessel using your barometer height (z).

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Height Matters

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  1. Height Matters

  2. Wind, Temperature, and Humidity

  3. Pressure

  4. Pressure Exercise • Using the equation • Given • pz = 1010 hPa • T = 290 K • g = 9.81 m s-2 • Ra = 287.05 J kg-1 K-1 • e = 2.718281 • Calculate the surface pressure (ps) for your vessel using your barometer height (z). • Calculate the pressure difference (ps – pz) and add it to the list on the whiteboard. } Pressure and temperature at a given time } Constants

  5. Accuracy Targets

  6. Applying Heights in the Field Image Courtesy NOAA OAR

  7. Questions?

  8. Sea Level Pressure vs. Air Temperature Sea level pressure calculated from surface pressure is equal to 1010 hPa at a height of 10 m. Sea Level Pressure Air Temperature (˚K)

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