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Working Toward a Long-Term, Real-Time Measurement Network for Atmospheric Aerosol Sources.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Working Toward a Long-Term, Real-Time Measurement Network for Atmospheric Aerosol Sources./
Author:	Hakan, Olivia.
Description:	1 online resource (49 pages)
Notes:	Source: Masters Abstracts International, Volume: 85-01.
Contained By:	Masters Abstracts International85-01.
Subject:	Atmospheric chemistry. -
Online resource:	click for full text (PQDT)
ISBN:	9798379906733

Working Toward a Long-Term, Real-Time Measurement Network for Atmospheric Aerosol Sources.
Hakan, Olivia.

Working Toward a Long-Term, Real-Time Measurement Network for Atmospheric Aerosol Sources. - 1 online resource (49 pages)

Source: Masters Abstracts International, Volume: 85-01.

Thesis (M.S.)--University of Washington, 2023.

Includes bibliographical references

Aerosols have a significant impact on both human health and the Earth's climate. Due to their complexity and variety, however, relatively little is known about them. ASCENT is a new aerosol measuring network that aims to fill these gaps in our knowledge. With 12 sites across the US, which each have an ACSM, Xact, SMPS, and Aethalometer, it is the most advanced large-scale, real-time network implemented in the field at this time. Though the project installation is still ongoing, UW's suite of instruments has already provided unique insight into rural pacific-northwest aerosol composition and sources. For example, both the ACSM and the Aethalometer were in use during a high mass-loading aerosol event seen in December 2022. By observing a high brown-to-black carbon ratio, the presence of the MS m/z 60 levoglucosan tracer, and comparison with previous measurements, it was determined that the event was most likely a biomass-burning event. Non-negative matrix factorization (NNMF) was also proven to be a useful tool for analyzing large sets of data, which will be useful for instruments that collect such abundant data.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798379906733Subjects--Topical Terms:

639403
Atmospheric chemistry.
Subjects--Index Terms:

AerosolsIndex Terms--Genre/Form:

554714
Electronic books.

Working Toward a Long-Term, Real-Time Measurement Network for Atmospheric Aerosol Sources.
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502 $a Thesis (M.S.)--University of Washington, 2023.
504 $a Includes bibliographical references
520 $a Aerosols have a significant impact on both human health and the Earth's climate. Due to their complexity and variety, however, relatively little is known about them. ASCENT is a new aerosol measuring network that aims to fill these gaps in our knowledge. With 12 sites across the US, which each have an ACSM, Xact, SMPS, and Aethalometer, it is the most advanced large-scale, real-time network implemented in the field at this time. Though the project installation is still ongoing, UW's suite of instruments has already provided unique insight into rural pacific-northwest aerosol composition and sources. For example, both the ACSM and the Aethalometer were in use during a high mass-loading aerosol event seen in December 2022. By observing a high brown-to-black carbon ratio, the presence of the MS m/z 60 levoglucosan tracer, and comparison with previous measurements, it was determined that the event was most likely a biomass-burning event. Non-negative matrix factorization (NNMF) was also proven to be a useful tool for analyzing large sets of data, which will be useful for instruments that collect such abundant data.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Atmospheric chemistry. $3 639403
650 4 $a Atmospheric sciences. $3 1179392
650 4 $a Chemistry. $3 593913
653 $a Aerosols
653 $a ASCENT
653 $a Mass spectrometry
653 $a Non-negative matrix factorization
653 $a Organic aerosols
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