The “Technical Innovation Into Iodine for Gulfstream 5 aircraft Environmental Research – 2” (TI3GER-2) field campaign takes place in May 2026, as a follow up to TI3GER-1 (April 2022) to develop, test & certify CU CIMS coupled to a laminar flow inlet to deliver condensable vapors and ambient ions aboard the NSF/NCAR Gulfstream 5 aircraft.
Location: Broomfield, CO & Medford, OR
Objectives
- Certification and characterization of a novel laminar flow inlet coupled to a high-resolution time-of-flight Chemical Ionization Mass Spectrometry (ToF-CIMS) instrument
- Measuring Eddy Covariance Fluxes (ECF) of O3, CO, H2O, and other chemically active trace gases in the marine boundary layer (MBL) and icing conditions in the TTL and UTLS
- Measurements of winds and air mass tracers will aid in ECF assessment
Instruments
CIMS:
- Our Bromide adduct Time of Flight Chemical Ionization Mass Spectrometer (Br-CIMS) will be deployed to sensitively detect glyoxal, HONO, SO2, halogen species, and other oxygenated organics
- Our Br-CIMS is optimized for aircraft deployment with careful regulation of instrument pressure, temperature, and humidity
AMAX-DOAS:
- The CU AMAX-DOAS instrument was deployed during TI3GER to measure iodine monoxide radical (IO) in the UTLS
- Other trace gases of interest: Glyoxal (CHOCHO), H2O, BrO