lab 3

.pdf

School

Georgia State University *

*We aren’t endorsed by this school

Course

1112L

Subject

Geography

Date

Apr 3, 2024

Type

pdf

Pages

Uploaded by MasterRabbitMaster1141

Q1: What are the two most abundant gases in both the stratosphere and troposphere? Nitrogen and Oxygen Q2: Compared to the other layers of the atmosphere, of what does the troposphere have high concentrations? Water vapor and particulates Q3: For the Earth as a whole, what percentage of the incoming solar radiation is reﬂected by clouds and other parts of the atmosphere? You need to examine the figure above to find the numbers you will use when calculating the percentage. A percentage is a proportion multiplied by 100. (79/341.3)* 100= 23.1% Q4: For the Earth as a whole, what percentage of the incoming solar radiation is absorbed by the atmosphere? You need to examine the figure above to find the numbers you will use when calculating the percentage. A percentage is a proportion multiplied by 100. Also, you examined a major component of this absorption in the Stratospheric Ozone lab. (78/341.3)* 100= 22.9% Q5: What percent of the global atmosphere is carbon dioxide (CO 2 ) ? Lab 5 and other subsequent labs have an emphasis on CO 2 . 0.04% Q6: How do atmospheric pressure and density change with an increase in altitude? Atmospheric pressure and atmospheric density decrease rapidly with an increase in altitude Q7: Why do kicked footballs tend to travel farther at stadiums located at higher elevations? Because the reduced atmospheric density causes the air to have a lower concentration of air molecules. Less air means less resistance.

Q8: Why do you think temperatures are higher at the surface than at the middle and upper portions of the troposphere? Temperatures are higher near the surface because the sun’s energy is reﬂected off the surface, thereby making the area nearest the point of reﬂection warmer. Q9: How would you describe the change in air density with an increase in altitude and how does that compare to what you learned in the previous sections? The change in air density is in an inverse relationship with an increase in altitude. This is because there are fewer atoms the higher up one goes, leading to a decrease in pressure. This allows for particles to move more freely, decreasing density. This relates to what we’ve already learned in other labs Q10: Which gas had the largest proportional increase in mass when moving from the upper troposphere to the surface? Why? Water vapor because it’s less dense. Q11: Why was your surface pressure higher or lower than the SLP of your location? If your location is Falcon Field, then remember that the surface pressure was measured at 245 meters above sea level. lol Q12: Which region of Earth generally has the highest concentration of water vapor and which region generally has the lowest concentration? Generally, rainforests have the highest water vapor concentration, as seen on the West African coast, South Asia, and Northern South America. There also tends to be large amounts of water vapor over the oceans. The lowest can be seen in deserts like the Sahara and Mojave, close to the poles, and in Tibet. This could be because of the region's high elevation.

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