Summary of Types of Data
Collected on the University of Washington's Convair C-131A
Aircraft in the Smoke, Clouds and Radiation -- Brazil (SCAR-B) Field Study
from 17 August - 20 September 1995
Compiled by Peter V. Hobbs -- Principal Investigator
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.
(See also the general description for a brief
description of the project, its participants, and research flight objectives,
plus a list of aircraft instrumentation).
An overview of the data collected:
- Twenty-nine research flights (~90 flight hours) in
Brazil from 17 August - 20 September 1995.
- Transcriptions of the in-flight voice recordings
made on the C-131A.
- Documentation of regional smoke properties from ~16° to 3° S
and from ~64° to 48° W. (~67 filter sets.)
- One hundred and ten (110)
photographs of fires, smoke, clouds and terrain.
- Aerosol and gas (NO, NO2, SO2, CO, CO2, O3 and hydrocarbons) measurements
from ~16 cerrado and grass fires and ~16 forest and/or slash fires.
- Twenty-three samples for "true" emission factors
(including CCN), NO, NO2, SO2, CO, CO2 and
total volatile organic compounds (VOCs).
- Three thousand nine hundred and seventy measurements of
aerosol size distributions in regional haze and
- One hundred and fifty-six
cloud condensation nucleus (CCN) spectra for
smoke in individual plumes, in regional haze, and in cloud-processed smoke.
- One hundred and thirty-seven measurements of
volatility of aerosols (at <=320°C).
- Seventy measurements of humidification factor
of aerosols from individual fires and in regional haze.
- Extensive black carbon measurements by four techniques
(optical extinction cell (OEC),
Teflon filters, and thermal-optical). On 26
occasions, simultaneous measurements were obtained using all four techniques.
- One hundred and thirty-five measurements of
single-scattering albedo of
smoke from individual fires and in regional haze.
- Twenty smoke-cloud interaction studies.
- Seven direct aerosol "closure" experiments over NASA ground-based
- Six coordinated flights with NASA ER-2 (plus three
- Four flights during satellite overpasses
(AVHRR and LANDSAT).
- Seven dedicated surface reflectivity and smoke measurements with
- Intermittent downward-pointing lidar
Last changed: 24 Apr 1996