Root Mean Square Uncertainty

Usage

rmsu(obs, alpha = 0.2, RV = 200, U_RV = 0.24, ...)

Arguments

obs

A numeric vector, data.frame or data.table.

alpha

Non-proportional fraction factor (0 <= a <= 1). Default value = 0.20 (for NO_2).

RV

Reference value. Default value = 200 (for NO_2).

U_RV

Standard measurement uncertainty around the RV. Default value = 0.24 (for NO_2).

...

Optional arguments passed to both mean and sd.

Details

Compute root mean square uncertainty of time series. For parameters see Table 6 of: Fairmode MQO Guidance V3.2

$$\mathrm{RMS}_U = U_r(RV) \sqrt{(1 - \alpha^2) (\overline{O}^2 + \sigma_O^2) + \alpha^2 RV^2}$$