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West Coast Aerosols:Pasadena vs. Cache Valley
Greg Nichols & Erika Sahlman
Abstract
• Using CloudSAT protocol and a photometer students will measure regional differences in aerosol amounts between an urban and rural valley in the western U.S.
Introduction & Hypothesis
• Is there a difference in aerosol concentrations between Pasadena (urban) and Cache Valley (rural) areas?
• Questions that may lead to hypotheses• Seasons• Temperature• Altitude• Anthropogenic vs. Natural Aerosols
Materials & Method• CloudSAT
• Use CloudSAT protocol and exchange photos between schools.
• Photometer• Measure amounts of aerosols
in both schools.• In the future…
• Use GLOBE protocols to compare data online as we acquire additional resources.
• Method• Collect data for as many
times as possible over a two week period per school year month.
Data Summary/Analysis and Results
• Compare cloud coverage and cloud types, photometer results, and temperature.• Use Excel and make a graph for all three variables.
• The students are then going to pick their own questions to focus on and answer them using their data between the two schools. • Are there seasonal changes in aerosol
concentrations?• Does temperature effect aerosol amounts?• Do aerosol amounts vary depending on the time of
day?
Discussion
• Equipment• Photometers• GLOBE weather station protocols
• Some data is not available (AIM) ~ man-made vs. natural aerosols
• Setting up collaborations between the two classes.
Partners & Bibliography
• Pasadena, California• JPL - NASA’s Jet Propulsion Laboratory• California Institute of Technology
• Cache Valley, Utah• Space Dynamics Laboratory• Utah State University
• MODIS - http://modis-atmos.gsfc.nasa.gov/• CloudSAT - http://cloudsat.atmos.colostate.edu/• GLOBE - www.globe.gov• Google Earth - http://earth.google.com/• UCAR - http://www.ucar.edu/