1. Urban Heat Island The Role of Thermal Inertia http://pdphoto.org/PictureDetail.php?pg=7954&mat=pdef

2. What Is “Urban Heat Island”? http://eetd.lbl.gov/HeatIsland/HighTemps/

3. Important Factors Albedo Tells us lighter objects reflect more incoming radiation than darker objects Moisture and Vegetation Parks and agricultural fields reduce urban heat island through evaporative cooling (from Christopherson, 2004)

4. Some More Terms: 1)Thermal Inertia – The potential of a material to absorb and store heat 2) Oasis Effect – Where cities can be cooler during the day than the surrounding countryside 3) Remote Sensing – Involves the acquisition of earth surface characteristics using a remote device

5. Thermal Inertia Oasis Effect Heat Island RuralUrban

6. What Do You Think Will Be Hotter, the Sand or the Concrete? Infrared Thermometer (Our Remote Sensor)

7. An Example Beyond Urban Heat Island: Using Thermal Inertia to Better Understand Mars (Images Courtesy of NASA) Warm “Day”“Night” Cool Warm Cool

8. Warm “Day”“Night” Cool Warm Cool Charlie’s Angels and Thermal Inertia

9. Nighttime Phoenix (http://elwood.la.asu.edu/grsl/UEM/)http://elwood.la.asu.edu/grsl/UEM/ A_____ B_____ C_____ D_____ Analysis: Use your knowledge of greater Phoenix and urban heat island to decipher what each of these letters are referring to. 10:39pm 10/3/03

10. How Does Phoenix Compare? (image courtesy of NASA)

11. What kinds of problems might stem from urban heat island, if any?

12. Things to know: What is Urban Heat Island? What is Urban Heat Island? How does albedo, moisture, and vegetation play a role in urban heat island? How does albedo, moisture, and vegetation play a role in urban heat island? Understand and describe Thermal Inertia, Oasis Effect, and Remote Sensing and how they relate to urban heat island. Understand and describe Thermal Inertia, Oasis Effect, and Remote Sensing and how they relate to urban heat island. Help: Chapter AT