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Working Toward a Long-Term, Real-Tim...

Hakan, Olivia,

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

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Working Toward a Long-Term, Real-Time Measurement Network for Atmospheric Aerosol Sources // Olivia Hakan.
作者:	Hakan, Olivia,
面頁冊數:	1 electronic resource (49 pages)
附註:	Source: Masters Abstracts International, Volume: 85-01.
Contained By:	Masters Abstracts International85-01.
標題:	Atmospheric chemistry. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30525368
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 /Olivia Hakan. - 1 electronic resource (49 pages)

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

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.

English

ISBN: 9798379906733Subjects--Topical Terms:

544140
Atmospheric chemistry.
Subjects--Index Terms:

Aerosols

Working Toward a Long-Term, Real-Time Measurement Network for Atmospheric Aerosol Sources /
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500 $a Advisors: Thornton, Joel Committee members: Synovec, Robert.
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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.
546 $a English
590 $a School code: 0250
650 4 $a Atmospheric chemistry. $3 544140
650 4 $a Atmospheric sciences. $3 3168354
650 4 $a Chemistry. $3 516420
653 $a Aerosols
653 $a ASCENT
653 $a Mass spectrometry
653 $a Non-negative matrix factorization
653 $a Organic aerosols
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720 1 $a Thornton, Joel $e degree supervisor.
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792 $a 2023
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30525368