AVAPS RH Time Constant

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Description

Calculate the time constant $TC_{RH}$ (s) for an RS-80 radiosonde relative humidity sensor. The time constant is a function of pressure. The pressure $p_t$ (mb) is interpolated from a pressure series at time $t$. For a tropical atmosphere.

Formula

$$TC_{RH} = 18.3 -0.02921p_t + 3.31*10^{-5}p_t^{2} - 1.4*10^{-8}p_t^{3}$$

Source

From Hal cole, via Editsonde.

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