Overview of ClearfLo: study of aerosol sources and processing at a rural site southeast of London

 
Poster PDF

Authors

Leah R Williams — Aerodyne Research Inc
Scott C Herndon — Aerodyne Research, Inc.
John T Jayne — Aerodyne Research, Inc.
Andrew Freedman — Aerodyne Research, Inc.
William Brooks — Aerodyne Research, Inc.
Jonathan P Franklin — Aerodyne Research, Inc.
Paola Massoli — Aerodyne Research, Inc.
Ed Fortner — Aerodyne Research, Inc.
Puneet Chhabra — Aerodyne Research, Inc.
Mark Stuart Zahniser — Aerodyne Research, Inc.
Harald Stark — Aerodyne Research, Inc.
Timothy B Onasch — Aerodyne Research, Inc.

Felipe Lopez-Hilfiker — University of Washington
Claudia Mohr — University of Washington
Joel Thornton — University of Washington
Nga Lee Ng — Georgia Institute of Technology
Lu Xu — Georgia Institute of Technology
Matthew Stephen Kollman — Georgia Institute of Technology
Walter Berkett Knighton — Montana State University
Manvendra K. Dubey — Los Alamos National Laboratory
Allison C Aiken — Los Alamos National Laboratory
Kyle Gorkowski — Los Alamos National Laboratory
Timothy J. Martin — Argonne National Laboratory
Richard L. Coulter — Argonne National Laboratory

Category

Field Campaigns

Description

Air pollution generated by large urban areas poses threats to human health and the environment. ClearfLo is a large, multidisciplinary study of the London urban atmosphere aimed at understanding the relationships between surface meteorology, gas-phase composition, and particulate matter at a city street site, a city background site (away from local traffic sources), and at a rural location that samples the outflow from the London urban area. We have deployed a suite of instruments at a rural site southeast of London in Detling, UK, during January–February 2012. The wintertime studies also provide information on gas and particle emissions from home heating solid fuels. The project is coordinated by the UK National Centre for Atmospheric Science with support from the Natural Environment Research Council. Several research groups joined together to provide continuous, high-time-resolution measurements of aerosol chemistry and microphysics, measurements of gas-phase tracers and secondary organic aerosol (SOA) precursors, and radiative and meteorological measurements. Aerodyne Research, Inc. (ARI) and the Georgia Institute of Technology provided instruments to monitor aerosol chemical composition, including organics, inorganics, and black carbon, as well as extinction and single-scattering albedo. ARI also deployed instruments for state-of-the-art measurements of trace gas species. The University of Washington, Seattle, deployed a newly developed, high-sensitivity mass spectrometer system that is capable of near-real-time measurements of molecular level composition of both gas and particle-phase organics. Los Alamos National Laboratory (LANL) provided measurements of in situ aerosol optical properties and size distributions, and Argonne National Laboratory (ANL) provided remote sensing and meteorology measurements. Here we present an overview of preliminary results from the deployment.