ICARUS Chamber Experiment: 2014 FIXCIT Study_20140109_ISOPRENE/Nitrogen dioxide/Ozone/Formaldehyde_Nitrate radical_N/A_Isoprene + NO3/HO2, dry, no seed

Goals: Explore products formed due to isoprene + NO3 oxidation when under conditions that are more relevant to the atmosphere (i.e., NO3 and HO2 are both present in the chamber like ambient conditions). Turn on lights to confirm the formation of nitrooxyhydroxyepoxide from OH oxidation of nitrooxyhydroperoxide. Summary: The experiment turned out well, and only a couple of instruments had an interference for formaldehyde. The NO CL monitor saw an interference and the LIF OHR saw diminished signal due to OH reacting with formaldehyde, but all other instruments ran smoothly. The LIF OHR was taken off of the experiment because the signal was too depleted to be useful. This helped save bag volume, so that the GTHOS could sample the entire experiment. Nitrooxyhydroperoxide, hydroxynitrate, and carbonylnitrate all formed in the dark and leveled off before turning on lights. When lights were turned on, nitrooxyhydroperoxide was oxidized via OH to nitrooxyhydroxyepoxide as expected. Organization: 2014 FIXCIT Study Lab Affiliation: California Institute of Technology Chamber: Seinfeld chambers Experiment Category: Gas phase chemical reaction Oxidant: Nitrate radical Reactants: ISOPRENE, Nitrogen dioxide, Ozone, Formaldehyde Reaction Type: Dark oxidation Relative Humidity: 5 Temperature: 26 Seed Name: N/A Pressure: 750

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Temporal Range

  • Begin:  2014-01-09
    End:  2014-01-09

Keywords

Resource Type dataset
Temporal Range Begin 2014-01-09
Temporal Range End 2014-01-09
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 1.814 MB
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Creative Commons Attribution 4.0 International License
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Resource Support Email datahelp@ucar.edu
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Distributor NSF NCAR Geoscience Data Exchange
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Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Wennberg, Paul O.
Seinfeld, John H.
Crounse, John D.
Nguyen, Tran B.
Publisher NSF National Center for Atmospheric Research
Publication Date 2021-10-12
Digital Object Identifier (DOI) https://doi.org/10.5065/47r8-db73
Alternate Identifier d789037
Resource Version N/A
Topic Category environment
Progress completed
Metadata Date 2025-10-09T01:34:55Z
Metadata Record Identifier edu.ucar.gdex::d789037
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_20140109_ISOPRENE/Nitrogen dioxide/Ozone/Formaldehyde_Nitrate radical_N/A_Isoprene + NO3/HO2, dry, no seed. NSF National Center for Atmospheric Research. https://doi.org/10.5065/47r8-db73. Accessed 11 October 2025.

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