DIRECTIONS: Now that you have seen some of the information the TOMS's website can give you, it is time to do some independent research. To do this research, use the information on the TOMS website, at:

PROJECT 1: On a separate piece of paper, PROVE to the class whether the ozone layer should be a concern. (You can argue on behalf of the Earth, or your town). Be sure to use at least 3 pieces of evidence, and be prepared to explain each piece of evidence used; you might have to participate in a debate!

PROJECT 2: Many people claim that an asteroid hitting the Earth would be able to spread enough ash to cloud the entire planet. This could eventually block out the sun and end life as we know it. Recently, there have been duststorms, fires, and eruptions that have emitted dust and gases into the lower atmosphere (called the troposphere) . Find at least 2 pieces of data from TOMS that PROVES the troposphere is capable of transporting dust and debris large distances. Be able to explain each piece of evidence used, as well as how satellites might be used in the future to predict aerosol movement.

PROJECT 3: The ozone hole over Antarctica changes every year. Be able to explain to the class how the ozone hole has changed in THREE WAYS since 1979. Be sure to have evidence from the TOMS website to support your argument.

PROJECT 4: Use the "Overpass Data" available from NIMBUS-7, ADEOS, or METEOR-3 to determine the lowest yearly ozone value (in DU) for any 3 cities/stations of your choice between 1978 1993. Try and chose 1 city/station from the far north, 1 city/station near the equator, and 1 city/station near the South Pole. Use the graph paper provided to graph the data from all 3 cities. (Be sure to plot DU vs. Year). Then, answer the questions that follow.

PROJECT 5: Previously we learned that ozone amounts change. To learn about how ozone values change in different parts of the globe, use the TOMS website to complete the chart provided and answer the questions that follow. (To get the information, try and use satellite maps or easy to read tables as much as possible---avoid the ASCII text! It is only critical to estimate DU values within 25 DU)
(HINT: Circling the lowest value for each area every year might reveal some patterns.)