From 17 August to 20 September 1995, the University of Washington's (UW) Cloud and Aerosol Research Group, with its Convair C-131A research aircraft, participated in an intensive field study of smoke emissions from various types of biomass burning over a large area of Brazil. This project, known as Smoke, Clouds and Radiation-Brazil (SCAR-B), involved the United States' National Aeronautics and Space Administration (NASA), the University of Washington, the Instituto Nacional de Pesquisas Espaciais (INPE), the Universidade de Sao Paulo, and the Agencia Espacial Brasileira. SCAR-B involved extensive airborne measurements, from the UW's C-131A, NASA's ER-2 and INPE's Bandeirante aircraft, as well as ground-based in situ and remote sensing measurements by American and Brazilian scientists.

The purpose of this report is to provide a guide to the flights of the UW's C-131A, and to the types of data collected aboard this aircraft in SCAR-B. In due course, this large data set will be analyzed, the results published, and the data archived.

I would like to take this opportunity to thank all of the UW personnel who helped to make this complex field project a success, and NASA, NSF, EPA and NOAA for funding the UW's participation in SCAR-B.


The objectives of the research flights of the University of Washington's (UW) Convair C-131A in the Smoke, Clouds And Radiation-Brazil (SCAR-B) field study in Brazil, which took place between 17 August and 20 September 1995, were to collect data needed to determine the following.