Participants from throughout the world will be involved in measurements and modeling of photolysis frequencies for ozone to O(¹D) and NO₂.  Instruments will include chemical actinometers, broadband radiometers and spectroradiometers.  Modelers will use a range of radiative transfer methods, molecular parameters of their choice and ancillary data (e.g. ozone column amount) to calculate these photolysis frequencies.

Referees Jack Calvert (measurements) and Alkis Bais (models) will receive the data from the participants, compare it, and report the results first to the participants and later to the atmospheric chemistry community.   This exercise will improve our ability to make measurements and will constrain those conditions for which modeled photolysis frequencies are acceptable.

Persons interested in participating should contact Rick Shetter.
 

• IPMMI Data
• Measurement Data Protocol for final submittal
• Logistic information for measurement participants
• Panoramic view of Marshall site region
• Molecular data for spectroradiometer data reduction
• Temperature, Pressure and Ozone data during the study
• Sky camera digital images
• Workshop at NCAR, 30 September-1 October 1999: Outcomes & action items
• Meeting in conjunction with Spring 2000 AGU: status
• IPMMI papers
• Chuck Long Sky Image Analysis
• IPMMI papers JGR Special Section

Return to Cantrell home page

Go to ACD Home Page