Mini Lesson

Relationship Between Surface Temperature and Vegetation

Mini Lesson

Vegetation

     

Surface Temperature

vegetation       surface temp
  1. Review the Landsat mapped image showing Vegetation.  It shows ​Vegetation Index; it is a measure of how much near-infrared radiation is reflected at the surface and can be used to identify the locations of plants.
  2. Review the color bar below. On the legend below, areas with a vegetation index closer to 1 contain plant life, while areas less than 0 represent areas that do not contain plant life.
    1. What color represents the most vegetation?    Least?  vegetation
  3. Select a quadrant to analyze in the image below and answer the questions.
veggie quadrant

 

  • Where do you find the largest and the smallest values in your quadrant. 
  • What kinds of environments may exist in an urban environment like Atlanta that would include areas of more/less vegetation? 
  • Predict which quadrant has the most urbanized (or developed landscape) and explain your thinking.  
  • Using the vegetation map, make predictions about where you would likely find the hottest and coolest temperatures in the Atlanta metro area. 

Now observe the surface temperature image from Landsat below and surface tempreview the color bar.  This image shows Surface Temperature; it represents the temperature of the Earth’s surface (expressed in degrees Fahrenheit). 

surface temp quadrant
  1. Now analyze the same quadrant as with the previous map.
  2. Students answer the the following questions. 
    • Are students' predictions correct?  Why or Why not? 
    • What patterns do students observe?  
    • What are the tradeoffs to urban development?  
    • What daily activities may be affected by the lack of vegetation? 
    • What can be done to mitigate the impact on surface temperature? 

Teachers who are interested in receiving the answer key, please contact MND from your school email address at mynasadata@lists.nasa.gov.