The Cloud and Aerosol Research Group (CARG) of the University of Washington participated in the SAFARI-2000 Dry Season Aircraft campaign with their Convair-580 research aircraft. This campaign covered five countries in southern Africa from August 10 through September 18, 2000. Various types of measurements were obtained on the thirty-one research flights of the Convair-580 to study their relationships to simultaneous measurements from satellites (particularly Terra), other research aircraft, and SAFARI-2000 ground-based measurements and activities.
The main goals of the University of Washington's Convair-580 research aircraft flights were to
measure the physical and chemical properties of aerosols and trace gases in ambient air and from various sources in southern Africa;
obtain measurements on aerosols, trace gases, clouds, and surface properties for comparisons with simultaneous remote-sensing measurements from the NASA ER-2 aircraft and Terra satellite and from SAFARI-2000 ground stations;
carry out comparative studies using in situ and remote-sensing measurements made aboard the Convair-580;
compare aerosol and trace gas measurements aloft at various locations in southern Africa;
measure the nature and concentrations of aerosols and trace gases and their emission factors in smoke from prescribed fires and non-prescribed fires of biomass in southern Africa;
measure the spectral albedo and bidirectional reflection distribution function (BRDF) of various surfaces and clouds in southern Africa;
measure the microstructures of clouds off the Atlantic Coast of southern Africa; and
investigate aerosol-cloud interactions;
For a complete detailed guide to the extensive measurements obtained aboard the UW Convair-580 aircraft in support of SAFARI 2000, see the UW Technical Report for the SAFARI 2000 Project.
Cite this data set as follows:
Hobbs, P. V. 2004. SAFARI 2000 CV-580 Aerosol and Cloud Data, Dry Season 2000 (CARG). Data set. Available on-line [www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/710.
Hobbs, P.V. "Summary of Flights and Types of Data Collected Aboard the University of Washington's Convair-580 Research Aircraft in the SAFARI-2000 Field Study in Southern Africa from 10 August Through 18 September 2000." Technical Report for SAFARI 2000 Field Project, University of Washington, Seattle, WA, 270 pp., 2001. Available at UW Technical Report for the SAFARI 2000 Project.
Hobbs, P. V. "Appendix A: An Overview of the University of Washington's Airborne Measurements in the SAFARI-2000 Field Study in Southern Africa." J. Geophys. Res. 108 (D13): 8487, doi:10.1029/2002JD002325, 2003. [Appendix within P. Sinha et al., "Emissions of Trace Gases and Particles From Savanna Fires in Southern Africa."]
Hobbs, P. V. Clean air slots amid dense atmospheric pollution in southern Africa. J. Geophys. Res. 108(D13): 8490, doi:10.1029/2002JD002156, 2003.
Hobbs, P. V., P. Sinha, R. J. Yokelson, T. J. Christian, D. R. Blake, S. Gao, T. W. Kirchstetter, T. Novakov, and P. Pilewskie. Evolution of gases and particles from a savanna fire in South Africa. J. Geophys. Res. 108(D13): 8485, doi:10.1029/2002JD002352, 2003.
Sinha, P., P. V. Hobbs, R. J. Yokelson, I. T. Bertschi, D. R. Blake, I. J. Simpson, S. Gao, T. W. Kirchstetter, and T. Novakov. Emissions of trace gases and particles from savanna fires in southern Africa, J. Geophys. Res. 108(D13): 8487, doi:10.1029/2002JD002325, 2003.
For each of the thirty-one research flights of the Convair-580 in SAFARI-2000 there is a set of six data files. In the file name, #### is the 4 digit flight number:
carg_####_aer.txt (aerosol data)
carg_####_chm.txt (chemistry data)
carg_####_cld.txt (cloud physics data)
carg_####_met.txt (meteorological data)
carg_####_nav.txt (navigation and flight characteristics)
carg_####_rad.txt (radiation data)
The tab-delimited text data files contain descriptive header information. The data are output at 1-second resolution. The first column in all data files is the UTC time that the data were collected. All values use -999.99 to denote missing or bad data. The column headings, units, instruments, data processing notes, quality notes, and example data records are shown in the companion file.