learn.illinois.edu ATMS 120: SU 2017 ATMOSPHERIC SCIENCES Snodgrass OF ILLINOIS
ID: 110283 • Letter: L
Question
learn.illinois.edu ATMS 120: SU 2017 ATMOSPHERIC SCIENCES Snodgrass OF ILLINOIS AT URBANA-CHAM Name and NetID: weekly Challenge Problem #6: Drought, Flood, and El Ni o/La Ni a Part #1 : Drought Throughout our lectures, we have learned that our body's primary defense against high temperatures is through sweating (perspiration). Let's consider a 200 lb (91 kg) male farmer in the Central Valley of California on a July day when the air temperature is 110°F (43°C). On this day, the humidity is low enough that all the sweat evaporates from the farmer's skin, enabling him to maintain a body temperature of 100°F (38°C). The farmer sweats l liter (1000 g) per hour and 60% of the latent heat needed to evaporate this sweat is provided by farmer's body (the other 40% is provided by the air). If the farmer suddenly dehydrates and stops sweating, how ong will it take for his body temperature to rise to a near-fatal 1 1 0°F (43°C)? Pleaseshowaltonour, Assumptions you will need to use: It takes 4200 Joules ofenergy to warm each kilogram (kg)ofhis body 1°C (1.8°F). 2. I. The latent heat of vaporization is 2,400,000 J/kg. This value means that it takes 2,400,000 Joules of energy to convert one kilogram of sweat (a liquid) into a gas. Hint: First calculate how much energy it takes to raise his body from 38 to 43. Then calculate how much energy his body was giving away when he was sweating at a rate of 1-liter/hr (I kg/hr). Use the ratio of these two numbers to find the time!Explanation / Answer
drought-
a drought can be defined as the situation of earth phenominon and the processes with a period of below average precipitation in a given region,which result in the shortening of the water supply in a locality or region. in this process the ground water as well as the retores surface water decreases and reduce the capity of water table under the earth surface. it result in drainage of it and hence produce a drought like dry situation.
flood - it can be defined as the process in which excessive rain is takes place in a region due to which a situation created for the destruction of life and overflow of water bodies.
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