Apparent temperature #39
Description
It would be interesting if the application could show the apparent temperature (at least optionally). In case the OpenWeatherMap API does not provide this value, it can be calculated with one of the following methods (the information belongs to this plugin for XFCE):
- Windchill/Heat index: Used in North America, wind chill will be reported for low temperatures and heat index for higher ones. At night, heat index will be replaced by the Summer Simmer Index. For wind chill, wind speeds need to be above 3.0 mph (4.828 km/h) and air temperature below 50.0 °F (10.0 °C). For heat index, air temperature needs to be above 80 °F (26.7 °C) - or above 71.6 °F (22 °C) at night - and relative humidity at least 40%. If these conditions are not met, the air temperature will be shown.
- Windchill/Humidex: The Canadian counterpart to the US windchill/heat index, with the wind chill being similar to the previous model but with slightly different constraints. Instead of the heat index humidex will be used. For wind chill to become effective, wind speeds need to be above 2.0 km/h (1.24 mph) and air temperature below or equal to 0 °C (32 °F). For humidex, air temperature needs to be at least 20.0 °C (68 °F), with a dewpoint greater than 0 °C (32 °F). If these conditions are not met, the air temperature will be shown.
- Steadman: This is the model used by the Australian Bureau of Meteorology, especially adapted for the climate of this continent. Possibly used in Central Europe and parts of other continents too, but then windchill and similar values had never gained that much popularity there as in the US or Canada, so information about its usage is scarce or uncertain. It depends on air temperature, wind speed and humidity and can be used for lower and higher temperatures alike.
- Quayle-Steadman: Improvements by Robert G. Quayle and Robert G. Steadman applied in 1998 to earlier experiments/developments by Steadman. This model only depends on wind speed and temperature, not on relative humidity and can be used for both heat and cold stress.
Maybe it would be best to have all those methods in the configurations and let the user decide which one to use.