Dry Bulb Temperature of Air (DBT) - marharyta/apparent-temperature GitHub Wiki

Dry Bulb Temperature of Air (DBT)

Dry Bulb Temperature of Air (from now on abbreviated to DBT) is most commonly used weather prediction that is also called just temperature or air temperature, which is in fact measured using a normal (an ordinary thermometer) thermometer exposed to the air, but shielded from radiation and moisture, so the air temperature is not affected by the moisture of the air, hence is called dry bulb temperature. (Engineering ToolBox 2004.)

It is simply the atmospheric temperature or ambient temperature of the air. (Bright Hub Engineering 2018.)

Ambient temperature refers to the temperature surrounding the thermometer at the point of measurements and is the temperature that can be obtained from weather forecasts. Starting from this point in a paper terms such as dry bulb temperature, ambient temperature, temperature and atmosphere temperature will be used interchangeably.

The experimental data was gathered, generating a regression line. The equation proposed is:

Figure 22. (Monteiro, L. M.  27-29 September 2005)

According to the formula Wind Chill factor can be calculated from the air temperature and speed. After creating a module and testing it, turned out this formula this does not work Any version of formula does not work. (http://www.ijmet.org/wp-content/uploads/2014/09/341.pdf)

It is important to make a distinction between Wind Chill Index and wind Chill temperature. As described in National Weather Service y National Oceanic and Atmospheric Administration: “From the user, we are given an air temperature (T) and a wind speed (Windsfc). […] In order to calculate the Wind Chill, the temperature must be converted to degrees Fahrenheit (°F). […] Also, in order to calculate the Wind Chill, the wind speed must be converted to miles per hour (mph). […] Then, the Wind Chill can be calculated using this formula:”

(12.1452 + 11.6222 * Math.sqrt(v) - 1.16222 * v) * (33 - t); // in Watts per m2

(Calculator.net. Wind Chill Calculator. 2019.)

The only way that proved to work was this formula (using for Fahrenheit and mph):

(0.081 * (3.71 * Math.pow(v, 1 / 2) + 5.81 - 0.25 * v) * (t - 91.4) + 91.4);