Tropospheric Chemistry: Instruments

BBCES instrument

BBCES instrument

BBCES (Broadband Cavity Enhanced Spectrometer) decommissioned

Principle of the Measurement

Broadband Cavity Enhanced Spectroscopy

Species Measured

Aerosol extinction and complex refractive indices in the ultraviolet spectral region (360 - 420 nm)

Time Response / Detection Limit

1 minute / 0.2 Mm-1


custom built

Field Projects

  • CalNex 2010
  • FLAME 2012
  • SOAS 2013


Rebecca Washenfelder, Steve Brown

Key Publications

Washenfelder, R. A., J. M. Flores, C. A. Brock, S. S. Brown, and Y. Rudich, Broadband measurements of aerosol extinction in the ultraviolet spectral region, Atm. Meas. Tech., doi: 10.5194/amt-6-861-2013, 2013.

Washenfelder, R. A., A. O. Langford, H. Fuchs, and S. S. Brown, Measurement of glyoxal using an incoherent broadband cavity enhanced absorption spectrometer, Atmos. Chem. Phys., doi:10.5194/acpd-8-16517-2008, 2008.