III. Mapping a Storm
You will understand how to describe storms, and locate one to evaluate and follow.
Why use data from multiple participants?
Students will explore each other's storm contributions, and gain a richer set of storm samples.
Before you start, you might find it easier to print out or make notes about your Report Form questions, so the answers will be available when it is time to answer them.
1. Open the global winds map at 850 hPa (1.7 km) atmospheric height line. This level of the atmosphere is where major storms form.
Review Activity 1 Protocol if you need help working with the map.
2. Rotate the globe and look for a storms. Find a storm that seems large, has winds over 20 m/s, and has a clear "eye." This will be the storm that you report.
If no storm exists above the criteria level of 33 m/s, a major storm, find a minor storm and record its maximum speed.
3. Locate your storm on the Global Lab map. VERY IMPORTANT!!!: Move the marker that shows your location to the location of the storm!
4. Take a screenshot of the storm and save it for your Report Form.
5. Check the storm's circling wind speed by clicking both outside and within the eye (the storm center).
What are your storm's highest and lowest speeds in m/s?
6. Over which continent or ocean is the storm centered?
(You could look at the choices in the Report Form.)
7. Which direction is the storm spinning, clockwise or counterclockwise?
8. Determine the storm's size by clicking on either side of the storm and getting two readings of latitude and longitude. Don't worry too much about perfect accuracy! Enter your findings in the storm distance caculator.
9. Find out where the storm was several days ago, or indeed whether it existed at all.
You can do this by going three days back in time. Click the wrd Earth to open the Control Panel: and click the left-pointing double arrow << in the "Control" line Each click will take you back a day.
10. Predict where your storm will be three days from now. If possible, check back and see how accurate you were.
- Project was published on:June 3, 2014