What is the purpose of a globe temperature measurement?

The purpose of a globe temperature measurement is to assess the sun's radiation exposure. This measurement is taken using a globe thermometer, which is a hollow metal sphere painted black and filled with water. It absorbs radiant energy from the sun and reflects the thermal load on a person when exposed to solar radiation.

Measuring globe temperature is crucial in sports and athletic training environments, especially when monitoring athletes during outdoor activities. It helps determine the effective temperature that athletes experience, taking into account both air temperature and the radiant heat from the sun. This information assists in making informed decisions about how long athletes can safely practice or compete under specific weather conditions, thus preventing heat-related illnesses.

Other measurement options, such as air circulation speed, moisture content in the air, or wind chill effect, do not capture the combined effect of solar radiation on body temperature, which is vital during outdoor athletic events.