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Hurricane Maria made landfall on Puerto Rico as a category four hurricane on September 20, 2017. The storm brought intense winds and rainfall that lasted for several days, damaging vegetation, pulling trees out of the ground, and blowing leaves off trees. The damage and extent of vegetation can be seen by Landsat imagery before and after the storm.
Present the following scenario to your students and have them follow the steps to use the Landsat Explorer App to assess the damage caused by Hurricane Maria.
Scenario
- Click on the Landsat Explorer App.
- In the search box in the left corner of the map, search for Puerto Rico.
- On the left panel select the Rendered and select Basemap Only.
- Identify the cities of San Juan, Ponce, Caguas, and Mayaquez.
- Use the Rendered to change back to Agriculture.
- Click the Time Slider.
- Click on the blue box to show dates in the drop-down list.
- Select September 17, 2017 (before hurricane Maria).
- Select the blue arrow to set this image as the secondary image.
- Select the Swipe tool.
- Select October 3, 2017.
- Click on the Renderer and choose Vegetation Index.
- Repeat the Time Selection and Swipe Tool.
- Click on the Rendered and choose Color Infrared.
- Repeat the Time Selection and Swipe Tool.
Subjects & Disciplines
- Earth Science
- Geography
Learning Objectives
Students will:
- Use the Landsat App Explorer
- Filter historic satellite imagery
- Use different band combinations (vegetation and color infrared)
Teaching Approach
- Learning-for-use
Teaching Methods
- Hands-on learning
Skills Summary
This activity targets the following skills:
What You’ll Need
Required Technology
- Internet Access: Required
- Tech Setup: 1 computer per learner, 1 computer per pair, 1 computer per small group
Physical Space
- Classroom
- Computer lab
Other Notes
ESRI ArcGIS Online account NOT required.
Background Information
Prior Knowledge
- None
Recommended Prior Activities
- None
Vocabulary
the art and science of cultivating land for growing crops (farming) or raising livestock (ranching).
to match or be similar to.
U.S. Homeland Security agency responsible for coordinating response and aid distribution after natural and manmade disasters.
tropical storm with wind speeds of at least 119 kilometers (74 miles) per hour. Hurricanes are the same thing as typhoons, but usually located in the Atlantic Ocean region.
American satellite that circles the Earth around 14 times a day.
wooded areas in cool, mild climate zones that receive high amounts of rainfall.
grouping of tall evergreen trees, usually close to the Equator, which receives more than 203 centimeters (80 inches) of rain a year.
all the plant life of a specific place.
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