Heat Index

The Heat Index (HI) is defined as the temperature the human body perceives in shady conditions when perspiration is limited due to increased relative humidity.

thermofeel computes the HI with two methods: Heat Index Simplified and Heat Index Adjusted.

More information: * Blazejczyk, K., Epstein, Y., Jendritzky, G. et al. Comparison of UTCI to selected thermal indices. Int J Biometeorol 56, 515–535 (2012). https://doi.org/10.1007/s00484-011-0453-2 * NOAA/National Weather Service, Weather Prediction Center. The Heat Index Equation. https://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml

How To Use

Simplified Heat Index

You need 2m air temperature in Kelvin and relative humidity as a percentage. Please use numpy arrays.

It returns the HI in Kelvin.

calculate_heat_index_simplified(2m_temperature, relative_humidity_percent)

Adjusted Heat Index

You need 2m air temperature and 2m dew point temperature in Kelvin. Please use numpy arrays.

It returns the HI in Kelvin.

calculate_heat_index_adjusted(2m_temperature, 2m_dew_point_temperature)

Interpret the Output

The HI is described in terms of danger of heat-related illnesses.