dp_mint: Calculate Dew Point Temperature from Minimum Temperature and...

In weaana: Analysis the Weather Data

Calculate Dew Point Temperature from Minimum Temperature and Relative Humidity

Description

This function estimates the dew point temperature (C) using the Magnus-Tetens approximation, based on the minimum air temperature and relative humidity at that time.

Usage

dp_mint(mint, minrh)

Arguments

mint	Numeric. Minimum air temperature in degrees Celsius.
minrh	Numeric. Relative humidity (%) at minimum temperature.

Details

The dew point temperature is calculated using the following equations:

\gamma = \frac{a \cdot T}{b + T} + \ln\left(\frac{RH}{100}\right)

T_{dew} = \frac{b \cdot \gamma}{a - \gamma}

where a = 17.62 and b = 243.12.

Value

Numeric. Dew point temperature in degrees Celsius.

Examples

dp_mint(10, 80)  # Expected output: around 6.71

weaana documentation built on Nov. 5, 2025, 6:08 p.m.