Investigating Seasonal Variability in NO2 Concentrations Students will examine data in several formats in order to determine the presence or absence of seasonal variability in tropospheric nitrogen dioxide (NO2) concentrations + Visit Site
	Aura Ozone Monitoring Garden The Aura Ozone Monitoring Garden is breaking new grounds at Goddard's visitor center. It's the magic of plants making the invisible, visible. Bringing down to earth what remote sensing observations are telling us. + Visit Site
	GLOBE Atmosphere protocols The GLOBE UV radiometer is a project that was designed specifically in conjunction with Aura in order to provide a low-cost instrument that produces data that can be used for Aura validation. The UV radiometer serves as a UV-A radiometer as well as a sun photometer. + Visit Site
	Sun Photometer A sun photometer is an electronic device that measures direct sunlight over a narrow range of wavelengths. That is, it measures light of a particular color. The detector used to measure sunlight determines these wavelengths. Sun photometers have been developed for the GLOBE program that use light emitting diodes (LEDs) as detectors. + Visit Site

Ozone Hole Watch Check the latest status of the ozone layer over the South Pole. Satellite instruments monitor the ozone layer, and we use their data to create the images that depict the ozone. + Visit Site ChemMatters CD-ROM This is an excellent resource for student research reports and projects. All you need to do is print one of the more than 300 articles. + Sept 2002 : "Meet the People of Aura" + Oct 2003 : "Whose Air is it Anyway?" + Sept 2005 : "Aura Launches!" + Visit Web Site

Aura Overview at Earth Observatory The Earth Observatory introduces Aura and answers questions such as: Is the stratospheric ozone layer recovering? What are the processes controlling air quality? How is our climate changing? + Visit Site Ozone at Earth Observatory Ozone... what is it, and why do we care about it? Information on Ozone Balance in the Stratosphere, Ozone Depletion, and Monitoring Ozone from Space + Visit Site Meet the Scientists + John Gille: Searching for Patterns in the Clouds + Anne Douglass: Making the World Safe for Blondes + Peter Siegel: Studying the Energy of the Universe + An interview with Andrea Razzaghi + An interview with Pieternel Levelt