TO DO- PART 2 AND PART 3 COMPLETE IN TYPED FORMAT FOR PART 2- SOME IMAGES ARE ATTCHED AT THE END OF PDF FILE FOR PART 3- USE THIS ADDRESS- 3414 blue candle drive in the city of Spring Texas/n 8:59 AM Fri Mar 15 < Back to Content III learning.k12.com ..... ล 55% Print Download > Part 2: Analysis of Volcanic Eruptions Procedure 1. Familiarize yourself with the location of Mount Pinatubo and the details of the eruption. Use the Internet. Determine the longitude and latitude of the volcano. 2. From the list of materials for this lesson, click the image titled Mount Pinatubo 1. All images that you will open for Mount Pinatubo were taken after the main eruption of the volcano. Copy or save the first image. Open it in a program that allows you to zoom in on an image. For the rest of this exercise, it will be assumed that you are using the Paint program that many computers have in the accessories folder. You may choose to use a graphics program or other tool to accomplish the same tasks. For helpful tips on using Microsoft Paint to view images, see Instructions for Using Paint to Analyze Images. 3. Compare the images and note how far the cloud traveled. To do this, note that the images have a longitude and latitude grid where the distance between each pair of longitude or latitude lines represents 10°. Consider that at different latitudes, 1° of longitude will not cover the same distance. At the latitude that you will note for the volcano, the circle of latitude (the east-west line that circles the earth) has a length that is 96.6% of the earth's circumference (the earth's circle of latitude at the equator), which is about 40,075 km. Since there are 360° of longitude, each degree of longitude is equal to the length of the circle of latitude at that point divided by 360. For the circle of latitude that passes through the volcano, each degree if longitude is equal to 108 km. 4. Now that you have determined this scale, find the center of the cloud as best you can. Note what you consider the latitude and longitude of the center of the cloud. There will be variance between the location you choose as the center and what others may choose. Additionally, remember that each pixel is not a point but rather a large square that covers a significant area. 5. Repeat this procedure for the other satellite images, Mount Pinatubo 2 and Mount Pinatubo 3. Since the cloud seems to be getting larger, it may be more difficult to determine its center, but use a point that is in the center of the white area on the image. These images do not have a grid as the first one did, so you will have to estimate the latitude and longitude to the nearest degree. Record your results in the table. 6. Calculate the distance that the center of the cloud traveled from Mount Pinatubo. Assume that the distance north and south is negligible compared to the distance to the east and west. This can be calculated easily by determining the number of degrees longitude the center of the cloud moved and multiplying the result by 108 km, the number of kilometers in a degree. Distance Traveled by the Gas Cloud of Mount Pinatubo Date Latitude (°) Position of the volcano Center of the cloud on June 16, 1991 Longitude (°) Distance traveled 8:59 AM Fri Mar 15 < Back to Content ||| Center of the cloud on June 17, 1991 Center of the cloud on June 18, 1991 learning.k12.com ..... Print Download ล 55% 7. Plot a graph of cloud distance vs. time. Part 3: Closer to Home Procedure 1. Visit Google Earth. 2. Note that Google Earth will allow you to view the location where you live in detail. Perform an analysis of the different types of land usage that are exhibited. To do this, locate your residence. Zoom in so the camera height is 200-700 meters above earth and centered on your residence. Take a screenshot of this image. Save the image somewhere you will be able to find it easily. 3. Select the ruler tool. Using the ruler tool, outline the total area you will be analyzing. When the shape is closed, the total area of the sample space will be displayed. Record the total size of the sample area including units. 4. Determine the types of land usage in the image. Common land types are vegetation, roads, streams, and buildings. Feel free to include others as you need to. 5. Using the ruler tool determine the area for each of the land types. You may need to find the area of individual pieces of each land type then add them together. For example, find the area of each building in the sample, then add the areas of all the buildings together. Include units for area. 6. Determine the percentage for each land type in your region. Land Usage around Your Residence Land type Housing/buildings Roads Vegetation Size of area for land type Total size of sample area Percentage > 9:00 AM Fri Mar 15 Back to Content learning.k12.com Mount Pinatubo Gas Cloud Image 1 > ล 55% Print Download Pinatubo JUN 16, 1991 760 660 560 460 360 260 160 60 -40 MILLI ATM CM > 9:00 AM Fri Mar 15 learning.k12.com Back to Content Mount Pinatubo Gas Cloud Image 2 > 3 54% Print Download Mount Pinatubo JUN 17, 1991 488 420 360 300 240 190 120 60 MILLI ATM CM > 9:01 AM Fri Mar 15 Back to Content learning.k12.com Mount Pinatubo Gas Cloud Image 3 > 3 54% Print Download Mount Pinatubo JUN 18, 1991 480 420 360 240 180 120 MILLI ATM CM 60 >