CalNex-LA

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Revision as of 16:26, 20 March 2009 by Jose (talk | contribs) (Planned and Instrumentation)
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This page is a repository of information and links for preparing and executing the field experiment at the Los Angeles Supersite as part of the CalNex-2010 field campaign. The focus of the campaign is to study nightime chemistry (led by Jochen Stutz of UCLA) and formation of secondary organic aerosol (led by Joost de Gouw of NOAA and Jose-Luis Jimenez of CU-Boulder). Prospective investigators who are interested in participating in this study should contact these PIs.

There is no specific call for proposals for CalNex-LA. NOAA investigators will be funded by internal NOAA funds, while university investigators need to find relevant funding. CARB and NOAA are funding a limited number of external investigators.

Logistical Information

Tentatively the site is planned to be located at the Los Angeles North Main St. site, which has been used for air quality monitoring in LA for a long time. It is just 2 miles N of downtown LA, in a building of the LA Division of Water and Power. This is a link to a map of the site in Google Maps

Planned and Instrumentation

Several additional instruments have been proposed, and will be deployed here is sufficient funding is available to the PIs.

Gas-Phase Species
Parameter Technique PI Funding / Availabiliy
VOCs GC-MS J. de Gouw, NOAA Confirmed
NO3, HONO, HCHO, others DOAS J. Stutz, UCLA Confirmed
Organic acids CIMS J. Roberts & J. de Gouw, NOAA Confirmed
Glyoxal Cavity-enhanced absorption spectroscopy S. Brown, NOAA Confirmed
PANs GC-ECD J. Roberts, NOAA Confirmed
ClNO2, PANs CIMS H. Osthoff, U. Calgary Confirmed
SO2 Research-quality monitor CARB Confirmed
O3, NO, NOx, CO Monitoring-quality instruments CARB Confirmed (part of LA main site)
gas phase and semivolatile organics High-resolution PTR-TOF MS R. Holzinger (U. Utrecht, Netherlands) Pending
CO ? NOAA Tentative


Particle-Phase Species
Parameter Technique PI Funding / Availability
Aerosol chemical composition HR-ToF-AMS J.L. Jimenez, CU Boulder Confirmed
Potential aerosol mass PAM J.L. Jimenez (CU-Boulder) / W. Brune (Penn State) Confirmed
Submicron particle number distributions TSI SMPS J.L. Jimenez (CU-Boulder) Confirmed
Total particle number TSI Water CPC 3776 J.L. Jimenez (CU-Boulder) Tentative
Particle number distributions (300 nm - 10 um) Grimm OPC 1.109 J.L. Jimenez (CU-Boulder) Tentative
OC and EC 1 hr Sunset Labs thermal-optical analyzer Weber (Georgia Tech) Pending
Water-Soluble OC in Gas and Particles PILS and mist chamber + online WSOC R. Weber (Georgia Tech) Pending
PM1 Carboxylic acids PILS + ion chromatography R. Weber (Georgia Tech) Pending
1-hr molecular tracers (particles and semivol.) TAG A. Goldstein (Berkeley) Pending
14C analysis of OC, EC, Water-Insoluble OC (WIOC) and WSOC Filters + off-line Accelerator MS A. Prevot (PSI, Switzerland) Pending
PM semivolatile and non-volatile organics High-resolution PTR-TOF MS R. Holzinger (U. Utrecht, Netherlands) Pending

Reference Information