In this activity, users examine satellite images from NASA's Total Ozone Mapping Spectrometer (TOMS) that show how much ozone is in the atmosphere over the Southern Hemisphere. They interpret the images to identify ozone thinning that develops over this region each summer, and compare its size from year to year. Using freely available image analysis software, ImageJ, users quantify the area of the ... Full description.

This chapter describes how to set a scale and measure distances and areas on satellite images. Using ImageJ, a freely available image analysis program that runs on most operating systems, users set the spatial calibration of an image, then select and measure distances and areas on it. The measurement results are reported in real-world units. The technique is most useful and accurate for nadir view ... Full description.

In this product, students engage in processes/activities for collaboration and communication strategies. Students compare risks of courses of action confronting NASA's Deep Impact mission team. They investigate information necessary to support arguments, quantitative risk analyses, debate, role play, persuasive writing/communication skills and group decision making procedures. This activity has been ... Full description.