Identification

Title

ICARUS Chamber Experiment: 2014 FIXCIT Study_20140123_ISOPRENE/OZONE_Hydroxyl radical_No Seed_Isoprene + OH + O3, low NO, 50% humidity, no seeds

Alternative title(s)

d789024

Abstract

<p>Goals:<br/> This experiment is designed to be easily compared to our dry no-scavenger isoprene ozonolysis experiment (on January 6th), with the only change in conditions being the humidity (50% RH instead of 3-4%). Our main goal is to see how the products of humid ozonolysis compare with those of dry ozonolysis. The hot, wet conditions at the end may also help with ongoing investigation of GTHOS interference.</p> <p>Summary:<br/> The experiment went as planned; initial conditions all matched the values we were aiming for, with 601 ppbv of ozone, 53% RH, and approximately 100 ppbv of isoprene at 25 degrees C. Ozonolysis proceeded rapidly, with the CF3O- CIMS observing the usual ozonolysis products (e.g. HMHP), and as we did not use an OH scavenger, the CIMS saw evidence of ISOPOOH and IEPOX formation as well. At the end, the temperature was ramped to 45C, during which a number of ozonolysis product signals increased and GTHOS was able to observe the temperature-dependence of interferences.</p> <p>Organization: 2014 FIXCIT Study<br/> Lab Affiliation: California Institute of Technology<br/> Chamber: Seinfeld chambers</p> <p>Experiment Category: Gas phase chemical reaction<br/> Oxidant: Hydroxyl radical<br/> Reactants: ISOPRENE, OZONE<br/> Reaction Type: Photooxidation<br/> Relative Humidity: 50<br/> Temperature: 25<br/> Pressure: 750 Torr</p>

Resource type

dataset

Resource locator

https://gdex.ucar.edu/datasets/d789024/

protocol: https

name: Dataset Description

description: Related Link

function: information

https://gdex.ucar.edu/datasets/d789024/dataaccess/

protocol: https

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

2021-03-30

Keyword set

keyword value

LABORATORY > LABORATORY

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-03

Keyword set

keyword value

ICARUS > Integrated Chamber Atmospheric data Repository for Unified Science

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-03

Keyword set

keyword value

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

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-03

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

2014-01-23

End position

2014-01-23

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

email address

datahelp@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

NSF NCAR Geoscience Data Exchange

email address

datahelp@ucar.edu

web address

https://gdex.ucar.edu

name: NSF NCAR Geoscience Data Exchange

description: The Geoscience Data Exchange (GDEX), managed by the Computational and Information Systems Laboratory (CISL) at NSF NCAR, contains a large collection of meteorological, atmospheric composition, and oceanographic observations, and operational and reanalysis model outputs, integrated with NSF NCAR High Performance Compute services to support atmospheric and geosciences research.

function: download

responsible party role

pointOfContact

Metadata date

2025-10-09T01:33:59Z

Metadata language