The values of the temperature-humidity index
(THI) in the pasture and in the shade were higher from 12 to 15 h, with mean of 79.8 in the pasture and 78.5 in the shade, i.e., the THI was 1.6% inferior in the shade (Figure 2), classified as moderate (79 to 88) according to Armstrong (1994).
Nearly two decades ago, a study by Misztal  introduced a temperature-humidity index
(THI)-based methodology, combining test-day records with weather data collected from public weather stations, for the genetic evaluation of animals with respect to heat tolerance.
The most commonly used thermal stress index is the temperature-humidity index
(THI), which evaluates the combined effects of air temperature and humidity.
The climatological data were utilized for the calculations of the radiant thermal load (RTL) according to Esmay (1982), Black Globe Temperature and Humidity Index (BGHI), Temperature-Humidity Index
(THI - Buffington et al., 1981) and enthalpy (Albright, 1990).
Part I: a temperature-humidity index
based on human physiology and clothing science.
Average temperature-humidity index
value was noted as 85.6 and 87.6 (Fig.1) in relation to environmental temperature and humidity during May and June, respectively.
, reported a direct effect of the temperature-humidity index
(THI) on conception rate, registering lower levels of fertility during the summer months compared to the winter.
Using metrics for the combined temperature-humidity health effects [e.g., heat index (Steadman 1979), temperature-humidity index
(HUMIDEX; Masterson and Richardson 1979), and wet bulb globe temperature (Sherwood and Huber 2010)], both CMIP5 and earlier model simulations consistently project increasing levels of heat stress across the U.S.
A temperature-humidity index
based on human physiology and clothing science," Journal of Applied Meteorology, vol.
Bouraoui et al.,  studying the effects of temperature-humidity index
(THI) on milk production and dry matter intake (DMI), reported that when the THI value increased from 68 to 78, milk production decreased by 21% and DMI by 9.6%, and milk yield decreased by 0.41 kg per cow per day for each point increase in the THI values above 69.
So the Weather Bureau changed the name to "Temperature-Humidity Index
." However, many ...