MODULE 3 PART 2
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University of Florida *
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2200L
Subject
Geography
Date
Feb 20, 2024
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3
Uploaded by CommodoreDanger181
Module 3, Part 2:
Temperature: A Global Trendsetter
Instructions In this module, you will read the information, watch the brief videos either embedded or given as links, and briefly answer the 'Stop and Think' Questions to turn in for grading. The questions are compiled here for Part 2 of the Ice Mass and Sea Level Changes Module. Please answer all questions.
Name: Paige Minkin Questions Answer the following questions based on Figure 1 in the Canvas Module. 1:
During which time period were temperatures cooler than expected? From 1880 to 1940 2: During which time period were temperatures warmer than expected? From 1975 to 2010 3:
During which time period were temperatures at the expected level? Why? From 1960 to 1975 4:
How much warmer are global temperatures today than in 1980? Approximately 0.75 Answer the following questions based on Figures 2 and 3 in the Canvas Module. 5: How are the air temperature trend and sea level rise trend similar? Both trends can be influenced by global climate change. Both may exhibit patterns of variability over time. 6: How are the air temperature trend and sea level rise trend different? They represent distinct aspects of the Earth's climate system. 7: Explain what might account for these similarities and differences. Differences can be attributed to the specific processes driving each trend, like thermal expansion of seawater, ice melt, or atmospheric circulation patterns. 8: How many degrees did average air temperature change between 1992 and 1998? 0.5 C 9: How much did sea level change between 1992 and 1998? 20 mm 10: Assume that the relationship between air temperature and sea level rise is linear. Based on the trend that you identified in the previous question (for 1992
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1998), what is the relationship between air temperature increase and sea level rise? A temperature rise of 1°C causes a 40 mm rise in sea level.
Answer the following questions based on Figures 4 and 5 in the Canvas Module.
11: Describe how the predicted trends in Figures 4 and 5 are similar. They both show a steady increase in RCP 2.6 & RCP 8.5 12: Describe how the predicted trends in Figures 4 and 5 are different. Figure 4 looks at the Global Average Surface Temperature Change while Figure 5 looks at the Global Mean Sea Level Rise 13: Look at the worst-case scenarios (red lines, ignoring the shading) for Figures 4 and 5 again. On each plot, draw a linear (straight-line) trend from the beginning of the red line to the year 2100. According to the linear trend line that you just plotted on the graph: What is the total predicted temperature change from 2000
–
2100? 4 C What is the total predicted sea level change from 2000
–
2100? 0.75 m •
An increase in air temperature of 1°C would cause a 0.1875 m rise in global sea level. •
An increase in air temperature of 2°C would cause a 0.375 m rise in global sea level. •
An increase in air temperature of 4°C would cause a 0.75 m rise in global sea level. 14: How does your estimate (in question 13) compare with what you calculated in question 9? Lower values. This difference might be due to the specific trends observed in the data represented by Figures 4 and 5, and it highlights the importance of considering the nuances of the actual data when estimating relationships between temperature and sea level rise.
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