Review Moist virtual effect

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Presentation transcript:

Review Moist virtual effect Tv: the temperature that dry air would need to have at the given pressure in order to have the same density as moist air, assuming idea gas behavior. If it’s saturated, rl is the liquid water mixing ratio

Calculate air density Example p=1010.5hPa, T=300.2K, h=98.0%

Estimating Errors of derived variables/Propagation of Errors Consider a quantity where A, B, C are measured quantities, The error associated with each of them is What is the error of the derived variable X? . Max error:

Applied to air density . Max error: