Meteorological variables were recorded every 2 h, from 08h00 to 16h00, using a thermo-hygrometer (dry and wet bulb temperature), a maximum-minimum temperature thermometer, a black globe thermometer
, and an anemometer (INMET, 2016).
A self-recording hygro-thermometer and black globe thermometer
were used to measure the air temperature (ATo), relative humidity (RHo), and black globe temperature (BGTo) in the outer zone (south zone), likewise for the air temperature (ATi2), relative humidity (RHi2), and black globe temperature (BGTi2) in the inner zone on the second floor and the ones in the north zone, as shown in Figure 5.
The black globe thermometer
method of determining MRT has been well established (T.
The other environmental parameters, including the black globe temperature, the air humidity, and the air velocity around the subjects, were measured, respectively, by the black globe thermometer
, the psychrometer, and the digital anemometer (Figure 3).
In this study we compared the length of time that temperature was above the 14 and 20[degrees]C thresholds during summer in northeast Minnesota, and used black globe thermometers
to compare the thermal environment among forest cover types during variable weather conditions.