On the Cutting Edge - Professional Development for Geoscience Faculty
The Hurricane - Climate Change Connection: Bringing Cutting Edge Research into the Classroom
Topical Resources
Cutting Edge > Hurricanes-Climate Change Connection > Classroom Activities > Investigating the Effect of Warmer Temperatures on Hurricanes

Investigating the Effect of Warmer Temperatures on Hurricanes

Serena Poli
,
Eastern Michigan University
Author Profile

This activity has benefited from input from faculty educators beyond the author through a review and suggestion process.

This review took place as a part of a faculty professional development workshop where groups of faculty reviewed each others' activities and offered feedback and ideas for improvements. To learn more about the process On the Cutting Edge uses for activity review, see http://serc.carleton.edu/NAGTWorkshops/review.html.


This page first made public: Oct 24, 2008

Summary

Students investigate the link between ocean temperatures and hurricane intensity, analyze instrumental and historical data and speculate on possible future changes.

Used this activity? Share your experiences and modifications

Context

Audience

The assignment is designed for Earth Science majors taking a weather and climate change class at the 200-level.

Skills and concepts that students must have mastered

Atmospheric structure; pressure, winds and Coriolis effect; moisture and latent heat; conditions necessary for the development of a hurricane.

How the activity is situated in the course

The activity will be assigned around the middle of the semester, immediately after we covered hurricanes in lecture, and before we start discussing climate change. Students will have two weeks to complete the activity. Introduction and final discussion will be conducted in class; data collection, elaboration and final report submission will be done online; participation in an online threaded discussion will be required. Students will be encouraged to work in small groups (3-4 persons maximum), however online discussions must be on an individual basis, and in the final report individual contributions must be indicated.

Goals

Content/concepts goals for this activity

With the completion of this activity students will:

Higher order thinking skills goals for this activity

Students will formulate hypotheses and test them by collecting and plotting data on maps and XY graphs.

Other skills goals for this activity

Use of online databases

Description of the activity/assignment

Step 1 - Students will download from the web data for a recent hurricane that moved across the Gulf of Mexico (e.g. Katrina) and create a Sea Surface Height (SSH) map of the Gulf at that time using the Colorado Center for Astrodynamics Research. (Note: all links are provided in the "Other Materials" section below). They will plot the positions of the hurricane on the map and add wind speed and atmospheric pressure. They will then analyze the data and discuss the relationship between hurricane intensity and surface temperatures (in the Gulf of Mexico SSH is a good proxy for temperatures).

Step 2 – Formulate a hypothesis on how the global warming of the last century may have affected hurricane intensity.

Step 3 – Test the hypothesis.

  1. Download from the web and plot on an XY graph data on SST, hurricane intensities and frequency changes in the tropical Atlantic between 1950 and today; identify and discuss similarities and differences. Is there any evidence of a common trend?

  2. Download from the web and plot on an XY graph the number of landfalls before and after 1950, compare the data to SSTs and discuss if and how this information support previous conclusions.

  3. Extend the SST and frequency curves back to the 1800s, verify if the pattern(s) previously identified persist (s). Search the web to learn how data were collected before the 1960s, and discuss the reliability of historical data vs. instrumental data.

Step 4 – Consideration of indirect effects of global warming on hurricane damage – the case of higher sea level. Using Google Earth students will analyze how the combination of increased sea level due to a warmer climate and hurricane-induced storm surges will increase the risk of extensive flooding along coastal regions.

Determining whether students have met the goals

Participation in online discussions

Final lab report.

More information about assessment tools and techniques.

Download teaching materials and tips

Other Materials

Supporting references/URLs

Unisys Atlantic Tropical Storm/Hurricane Tracking by Year

Colorado Center for Astrodynamics Research; Gulf of Mexico SSH

SST, hurricane intensities and frequency changes in the tropical Atlantic between 1970 and today

Chronological List of All Hurricanes which Affected the Continental United States: 1851-2006

Real Climate.org Discussion on how data collection has changed since the 19th century

See more Classroom Activities »