20 - Heat

Question 1

what is dry bulb temperature

Answer 1

most commonly reported air temp, measured using a dry thermometer, in a shaded area unexposed to air flow

Question 2

what is wet bulb temperature

Answer 2

lower due to evaporation cooling, measured using a moist thermometer

Question 3

what does relative humidity determine

Answer 3

the amount of evaporative cooling that is possible (must be <100% - can’t be done in the tropics)

Question 4

what does wet bulb temperature take into account

Answer 4

how much cooling you could get from sweating or other evaporative cooling

Question 5

what are the heat index and wet bulb globe temperature

Answer 5

indices that measure the human bodies ability to resist heat stress

Question 6

what does performing labour under heat do

Answer 6

worsens the bodies ability to function in high heat conditions

Question 7

what is global warming causing in the tropics

Answer 7

them to become high risk zones to heat

Question 8

what are extreme heat conditions likely to lead to

Answer 8

• massive migration pressures
• social unrest
• extreme loss of biodiversity