ICARUS Chamber Experiment: 2014 FIXCIT Study_20140114_ISOPRENE/CYCLOHEXANE_Ozone_No Seed_Isoprene + O3, low NO, dry, no seeds

Goals:; Isolate ozone chemistry from OH chemistry (OHchem should read zero); investigate ozone-related interferences with OH instruments; explore product formation, and compare to 140106 ozonolysis experiment.

Summary:; This was as clean of an experiment as we could have hoped. Cyclohexane seemed to scavenge the OH well, as very low signals of OH+isop tracers were observed. GTHOS measured all milestones of the experiment, and observed much higher interference when isoprene was added. The reaction seemed well-mixed in the beginning, leading to less undesired chemistry. The expected ozonolysis products (like HMHP) were observed with CIMS, as well as 1 to 2 ug/m^3 of particles that nucleated. The MAC and MVK traces on the GC-FID appear to be free of interferences. At the end lights were turned on at 100% for 1 h. After lights off, seeds were added for 1 h. Formaldehyde LIF measured successfully today, which is great news. There seemed to be some interference on the GTHOS even though OH was scrubbed, although interferences may be lower than at the end of the HPALD experiment.

Organization: 2014 FIXCIT Study; Lab Affiliation: California Institute of Technology; Chamber: Seinfeld chambers

Experiment Category: Gas phase chemical reaction; Oxidant: Ozone; Reactants: ISOPRENE, CYCLOHEXANE; Reaction Type: Photooxidation; Relative Humidity: 5; Temperature: 25; Pressure: 750 Torr

To Access Resource:

Questions? Email Resource Support Contact:

  • Bob Dattore
    dattore@ucar.edu
    UCAR/NCAR - Research Data Archive

Temporal Range

  • Begin:  2014-01-14
    End:  2014-01-14

Keywords

Resource Type dataset
Temporal Range Begin 2014-01-14
Temporal Range End 2014-01-14
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links

Related Resource #1 : ICARUS Dataset at UC-Davis
Additional Information N/A
Resource Format ASCII
Standardized Resource Format ASCII
Asset Size 0.00 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name Bob Dattore
Resource Support Email dattore@ucar.edu
Resource Support Organization UCAR/NCAR - Research Data Archive
Distributor NCAR Research Data Archive
Metadata Contact Name N/A
Metadata Contact Email rdahelp@ucar.edu
Metadata Contact Organization NCAR Research Data Archive

Author Wennberg, Paul O.
Seinfeld, John H.
Crounse, John D.
Nguyen, Tran B.
Publisher Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory
Publication Date 2021-10-12
Digital Object Identifier (DOI) https://doi.org/10.5065/73nf-7737
Alternate Identifier d789013
Resource Version N/A
Topic Category environment
Progress completed
Metadata Date 2025-06-17T20:05:01Z
Metadata Record Identifier edu.ucar.rda::d789013
Metadata Language eng; USA
Suggested Citation Wennberg, Paul O., Seinfeld, John H., Crounse, John D., Nguyen, Tran B.. (2021). ICARUS Chamber Experiment: 2014 FIXCIT Study_20140114_ISOPRENE/CYCLOHEXANE_Ozone_No Seed_Isoprene + O3, low NO, dry, no seeds. Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.5065/73nf-7737. Accessed 18 June 2025.

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