Fw: TROPOSPHERIC AEROSOL PROGRAM

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Saturday, August 21, 2004 12:27 AM

TROPOSPHERIC AEROSOL PROGRAM

 

TROPOSPHERIC AEROSOL PROGRAMhttp://www.tap.bnl.gov/Much of the science that had been planned for the Tropospheric Aerosol Program (TAP) will in the future be conducted under the Department of Energy's Atmospheric Science Program, which, beginning in Fiscal Year 2005, will focus on radiative forcing of climate change by atmospheric aerosols. Interested readers are referred to the ASP web site and to the documents accessible from that page. ARM - ASP - Aerosol IOP, May, 2003 Investigators in DOE's Atmospheric Chemistry Program (ACP) and TAP joined forces with investigators of DOE's Atmospheric Radiation Measurement Program (ARM) in an IOP (Intensive Observational Period) at the ARM Southern Great Plains site in North Central Oklahoma in May, 2003. The object of study was the influence of tropospheric aerosols on the radiation budget at the site. A secondary focus was characterization of the cloud nucleating properties of the aerosol. Much effort was directed to characterization of the microphysical and chemical properties of the aerosol by in situ measurements and remote sensing. A variety of closure experiments were conducted examining the ability of theory to predict aerosol optical properties and radiative influence. Key among these were tests of the ability to infer optical and cloud nucleating properties from chemical and microphysical properties of the aerosol. Further information is available on the ARM Aerosol IOP Homepage. Click here for a prospectus on the ACP component of this IOP. There is a considerable potential challenge to industry in helping to meet the recent National Ambient Air Quality Standard (NAAQS) for fine particles. Thus there is an almost unprecedented opportunity for collaborative work in TAP with other offices of DOE, other Federal Agencies, industry, and academia. The proposed DOE TAP program is viewed as very much a part of an emerging national aerosol research program, coordinated by the federal Air Quality Research Subcommittee and implemented in collaboration with NARSTO. The Department of Energy's Atmospheric Radiation Measurement Program (ARM) conducts reasearch on atmospheric radiation and the controlling atmospheric properties and operates facilities to conduct this research. As tropospheric aerosols are a significant influence on the radiation budget there is a natural overlap of interest between ARM and TAP. A description of TAP was presented at the Fall 1999 AGU meeting. The viewgraphs of that presentation are available as a PDF file (2 MByte) The Department of Energy's Tropospheric Aerosol Program - TAP: An Examination of Aerosol Processes and Properties. S. E. Schwartz and P. Lunn. American Geophysical Union, Fall Meeting, San Francisco, December 12- 17, 1999. An update on the status of TAP was presented at the 2001 Annual Meeting of the DOE Atmospheric Sciences Program, Raleigh, NC, February 13-15, 2001. The viewgraphs of that presentation are available as a PDF file. The Department of Energy's Tropospheric Aerosol Program - TAP: Status Update. Earlier documents describing TAP that are available are the initial (June 1998) TAP Concept Paper and a set of viewgraphs describing TAP Tropospheric Aerosol Program--A Vision; for more convenient viewing on a smaller screen Links to TAP-related Efforts DOE Atmospheric Science Program DOE Atmospheric Chemistry Program (ACP) DOE Environmental Meteorology Program (EMP) -- Vertical Transport and Mixing (VTMX) DOE Research Aircraft Facility DOE Atmospheric Radiation Measurement Program (ARM) DOE Global Change Education Program (GCEP) North American Research Strategy for Tropospheric Ozone (NARSTO) DOE Program ManagerPeter LunnEnvironmental Sciences Division, ER-74U. S. Department of Energy,Germantown, MD 20874-1290301-903-4819Internet: Peter.LunnLead ScientistStephen E. SchwartzBldg. 815EBrookhaven National LaboratoryUpton NY 11973516-344-3100Internet: ses