Identification

Title

ICARUS Chamber Experiment: 2014 FIXCIT Study_20140102_ISOPRENE/hydrogen peroxide_Hydroxyl radical_No Seed_Isoprene + OH, low NO, dry, no seeds

Alternative title(s)

d789049

Abstract

Goals:; Low NO isoprene oxidation experiment to test the waters.; Interested mainly in:; -do instruments see the usual chemical compounds (ISOPOOH, IEPOX); -are instruments affected by parts-per-million H2O2 levels; -working out potential pitfalls in chamber method with this many instruments Summary:; Resolved initial issues with sampling lines and injection lines.; Initial H2O2 addition may have been lower due to an eventually fixed issue with a lower injection line pressure. Isoprene injection proceeded as normally, but we started sampling before the prescribed 30 minutes of mixing for hydrocarbon (out of eagerness?). For future runs, it is probably advantageous to add hydrocarbon/standard first, then add H2O2. After approximately 30-45 minutes of sampling, instruments reported stable backgrounds so the full bank of UV lights were turned on. Based on initial reports, the chemistry proceeded as expected. Approximate calculation of RO2 reaction with NO vs. HO2 yielded a 1:14 ratio in the initial (~10min) phase of the experiment, which is very good. Peak ISOPOOH was reached at ~1.5-2hrs into the experiment. Bag volume was checked at 23:17. Organization: 2014 FIXCIT Study; Lab Affiliation: California Institute of Technology; Chamber: Seinfeld chambers Experiment Category: Gas phase chemical reaction; Oxidant: Hydroxyl radical; Reactants: ISOPRENE, hydrogen peroxide; Reaction Type: Photooxidation; Relative Humidity: 5; Temperature: 27; Pressure: 750 Torr

Resource type

dataset

Resource locator

https://rda.ucar.edu/datasets/d789049/

protocol: https

applicationProfile: browser

name: Dataset Description

description: Related Link

function: information

https://rda.ucar.edu/datasets/d789049/dataaccess/

protocol: https

applicationProfile: browser

name: Data Access

description: Related Link

function: download

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

environment

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

LABORATORY > LABORATORY

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-06-10

Keyword set

keyword value

ICARUS > Integrated Chamber Atmospheric data Repository for Unified Science

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-06-16

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-05-23

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

2014-01-02

End position

2014-01-02

Dataset reference date

date type

publication

effective date

2021-10-12

Frequency of update

notPlanned

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License

Limitations on public access

None

Responsible organisations

Responsible party

organisation name

UCAR/NCAR - Research Data Archive

full postal address

National Center for Atmospheric Research

CISL/DECS

P.O. Box 3000

Boulder

80307

U.S.A.

telephone number

(303)-497-1825

facsimile number

303-497-1291

email address

dattore@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

NCAR Research Data Archive

full postal address

National Center for Atmospheric Research

CISL/DECS

P.O. Box 3000

Boulder

80307

U.S.A.

facsimile number

303-497-1291

email address

rdahelp@ucar.edu

web address

https://rda.ucar.edu/

name: NCAR Research Data Archive

description: The Research Data Archive (RDA), managed by the Data Engineering and Curation Section (DECS) of the Computational and Information Systems Laboratory (CISL) at NCAR, contains a large and diverse collection of meteorological and oceanographic observations, operational and reanalysis model outputs, and remote sensing datasets to support atmospheric and geosciences research, along with ancillary datasets, such as topography/bathymetry, vegetation, and land use.

function: downlaod

responsible party role

pointOfContact

Metadata date

2025-06-20T20:05:02Z

Metadata language