Identification

Title

ICARUS Chamber Experiment: 2014 FIXCIT Study_20140126_METHACROLEIN/nitrogen dioxide/methyl nitrite/methacrylic acid epoxide_Hydroxyl radical_Ammonium sulfate_Methacrolein + OH, high NO, dry, then humidify and add (NH4)2SO4 seed at end

Abstract

Goals: Understand the gas-phase products of MPAN + OH. Understand what contributes to SOA from MPAN + OH. Summary: Within an hour of lights on, methacrolein was completely oxidized away. Significant amounts of organic aerosol were reported by AMS past 30% oxidation of methacrolein. TD-LIF reported increasing signal on their PN channel, peaking around lights off. Upon lights off, GHTOS reported significant OH interference, so the addition of NO was held off for 20 minutes. NO addition led to an excess of roughly 90ppb of NO and successfully titrated out the ozone. Wall loss was monitored for approximately an hour. MAE standard (courtesy of the Surrat group at UNC-Chapel Hill) was then injected into the chamber, at approximately ~10ppb. Wall loss was monitored again for another 90 minutes. At this point, humidified air was added to the bag to intentionally cause wall loss of MAE. Wall loss did increase after addition of humidity. Wet ammonium sulfate seed aerosol was then injected into the bag and no extra wall loss was noted from MAE. Organization: 2014 FIXCIT Study Lab Affiliation: California Institute of Technology Chamber: Seinfeld chambers Experiment Category: Gas phase chemical reaction, Aerosol formation Oxidant: Hydroxyl radical Reactants: METHACROLEIN, nitrogen dioxide, methyl nitrite, methacrylic acid epoxide Reaction Type: Photooxidation Relative Humidity: 5 Temperature: 26 Seed Name: Ammonium sulfate Pressure: 750

Resource type

dataset

Resource locator

https://gdex.ucar.edu/dataset/id/82a42491-83e0-4a31-ac77-63bfac0910e8.html

protocol: https

applicationProfile: browser

name: ICARUS Chamber Experiment: 2014 FIXCIT Study_20140126_METHACROLEIN/nitrogen dioxide/methyl nitrite/methacrylic acid epoxide_Hydroxyl radical_Ammonium sulfate_Methacrolein + OH, high NO, dry, then humidify and add (NH4)2SO4 seed at end

description: Metadata 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

Keywords

Keyword set

keyword value

Dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > AEROSOLS

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

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Keyword set

keyword value

Other > Physical Models > Laboratory > Laboratory

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Keyword set

keyword value

In Situ/Laboratory Instruments > Chemical Meters/Analyzers

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

2014-01-26

End position

2014-01-26

Dataset reference date

date type

publication

effective date

2021-10-12

date type

modified

effective date

2021-10-12

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

Compressed Archive File (application/zip)

version of format

Constraints related to access and use

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Use constraints

Creative Commons Attribution 4.0 International License.

Limitations on public access

These data are openly accessible by all registered users. Accounts are available free of charge following the registration of user information with a valid email address.

Responsible organisations

Responsible party

organisation name

2014 FIXCIT Study

email address

tbn@ucdavis.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

UCAR/NCAR - GDEX

email address

datahelp@ucar.edu

responsible party role

pointOfContact

Metadata date

2022-01-27T09:12:22-07:00

Metadata language