Data · dataset · 2026
ICARUS Chamber Experiment: Nguyen Group_20220523_alpha-Pinene/Ammonium Sulfate/Ozone/Hydrogen Peroxide_Ozone_Ammonium sulfate
Listed in National Center for Atmospheric Research
Goals: To quantify SOA yield and gas-phase product yields from humid ozonolysis of a-pinene, which will serve as a "control" experiment to subtract the ozonolysis contribution to the nighttime chemistry of a-pinene as measured in the experiment on 5/20/22.
Description
Summary
The chamber was humidified, after which H2O2, and O3 were injected in the chamber and allowed to equilibrate. Ammonium sulfate seed particles were injected. Then a-pinene was injected and decayed by reaction with ozone (plus some contribution from OH).
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Gas phase organics were monitored by CF3O- CIMS (units: normalized counts), particle formation was monitored by SMPS, and RH, T, O3, NOx were monitored throughout. O3/NOx data sometimes require post-correction not applied here, including subtraction of an ozone interference from H2O2 (1 ppm H2O2 is detected as about 12 ppb ozone) and correction for an in-line HEPA filter (see timeline for applicable timing) that scrubs about 10% of NO2 and 45% of ozone.
CIMS ran out of reagent at about 14:30. Organization: Nguyen Group Lab Affiliation: UC Davis Chamber: Tran's big bag of air Experiment Category: Gas phase chemical reaction, Aerosol formation Oxidant: Ozone Reactants: alpha-Pinene, Ammonium Sulfate, Ozone, Hydrogen Peroxide Reaction Type: Dark oxidation Relative Humidity: 63 Temperature: 22 Seed Name: Ammonium sulfate Pressure: ~1 atm
Links
Get the data
- Resource Homepage doi.org/10.5065/7qr5-3y28 ↗
download · DOI / persistent id · from data ucar edu
Where it is published
- data.ucar.edu /dataset/icarus-chamber-experiment-nguyen-group_20220523_alpha-… ↗
National Center for Atmospheric Research dataset page
landing page · from data ucar edu
Catalogue records · 1
- CKAN API data.ucar.edu/api/3/action/package_show?id=f8cb9ab3-3d27-44bf-a457-1f6fb79df… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Chemistry · Earth & Environmental Science · Life Sciences · Ocean & Atmospheric Science · Social Science
- Inferred from text
- Atmospheric sciences 69%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | f8cb9ab3-3d27-44bf-a457-1f6fb79df007 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3701 | enrichment · data ucar edu | taxonomy-embedding@1.1.0 | title+keywords+description (69%) |
| concepts[field].local:field:chemistry | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:social-science | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| created_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| description | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /notes |
| publication_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| title | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /title |
| updated_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 |