The higher we go, maybe we can rise above the net we are caught in.
The Department of Energy's Atmospheric Science Program has as its long-term goal developing comprehensive understanding of the
atmospheric processes that control the transport, transformation, and fate of energy related trace chemicals and particulate matter. The current focus of the program is aerosol radiative forcing of climate: aerosol formation and evolution and aerosol properties that affect direct and indirect influences on climate and climate change. [2004-11-12]
www.asp.bnl.gov/Archive.html...."A pre-mixed flat flame burner operating at controlled, premixed fuel-to-air ratios, produced stable and reproducible concentrations of
soot particles with known morphologies and chemical compositions. Particles were fully characterized as a function of particle mass, shape, chemistry, and optical properties.Highlights from the study will include:
Particle shape determination as a function of fuel-to-air ratio and collapse observed due to coatings
Characterization of several new instruments currently under development
Characterization of the physical and chemical properties of various types of black carbon particles (including incandescence, fullerene content, surface-bound PAH, etc.)Mass specific absorption measurements as a function of fuel-to-air ratio and
carbon particle typeOptical absorption enhancement measurements as a function of coatings
Wavelength-dependent measurements of absorption, scattering, and extinction as a function of fuel-to-air ratio,
particle coating, and relative humidity
Altogether 19 instruments participated in the studies; 9 mass-based, 8 optically-based and 2 filter samples. Twenty-six people representing 12 institutions participated in the project. Experiments were conducted six days a week beginning typically at 9 a.m. and often continuing past midnight."
..."The meeting started off with a presentation by Joost de Gouw of NOAA on
Emission Sources and Formation of Particulate Organic Matter. There were sessions dealing with the recently conducted
MASE (MArine Stratus Experiment) and
MAX-TEX (Megacity Aerosol eXperiment - TEXas) projects. As findings from the
MAX-MEX (Megacity Aerosol eXperiment - MEXico City) project a had been fully discussed at the MILAGRO Science Meeting earlier in the week, in which many ASP investigators participated, there was no session on MAX-MEX. However there were a number of poster presentations on MAX-MEX."
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measuring hydrocarbon species here and something else?=============
PNNL participation
The objective is to characterize hydrocarbon mixing ratios at multiple heights within the
planetary boundary layer (PBL) over Houston, Texas, during the August - September 2006 intensive field operation of TEXAQS II.
It is intended to deploy a set of Proton Transfer Reaction- Mass Spectrometers (PTR-MS) at multiple levels of a skyscraper tall enough so that its upper levels are above the early morning planetary boundary layer. The continuous set of PTR-MS observations will be supplemented by canister samples to measure
hydrocarbon species that cannot be measured by the PTR-MS (e.g. ethylene) and also to provide a check against the PTR-MS measurements. As resources and collaboration with other investigators allow, measurements of solar insolation and co-located
measurements of CO, NOx and other trace gas species relevant to O3 formation will be made. It is intended also to release radiosondes in the vicinity of the selected skyscraper to characterize the vertical structure of temperature and humidity. Also participating will be investigators from Texas A & M University and Washington State University. An invitation is extended to investigators from other organizations (including ASP investigators) to participate in this project to take advantage of the skyscraper platform and the basic sampling infrastructure, and the numerous co-located measurements. Tentative dates for these measurements are August 15 - September 15th, 2006, these dates coinciding with the planned
deployment of NOAA's P-3 Orion aircraft and their airborne lidar system.www.asp.bnl.gov/Houston.htmlskyship