CalNex-LA

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 Tentative Instrumentation

Gas-Phase Species
Parameter	Technique	PI
VOCs	GC-MS	De Gouw, NOAA
Organic acids	CIMS	Roberts & de Gouw, NOAA
Glyoxal	Cavity-enhanced absorption spectroscopy	Brown, NOAA
PANs	GC-ECD	Roberts, NOAA
ClNO2, PANs	CIMS	Osthoff, U. Calgary
NO3, HONO, HCHO, others	DOAS	Stutz, UCLA

Reference Information

• CARB homepage on CalNex
  • CalNex Science QUestions
  • CalNex White Paper
  • [http://www.arb.ca.gov/research/fieldstudy2010/noaascienceplan.pdf NOAA CalNex Science Plan
  • Historical Air Quality Data from LA

• South Coast Air Quality Management District (LA are Air Quality Agency)

• Links to publications from many previous studies in LA (with a focus on organic aerosols)
• Study of Organic Aerosols in Riverside (SOAR-2005)
  • Journal papers with SOAR results
• Southern California PM Center and Supersite