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Observations of Wildfire Volatile Organic Compound Emissions and Urban Ozone Precursors
Observations of Wildfire Volatile Organic Compound Emissions and Urban Ozone Precursors
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105503
- ISBN
- 9798263325282
- DDC
- 620
- 저자명
- Mouat, Asher P.
- 서명/저자
- Observations of Wildfire Volatile Organic Compound Emissions and Urban Ozone Precursors
- 발행사항
- [Sl] : Georgia Institute of Technology, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 189 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: A.
- 주기사항
- Advisor: Kaiser, Jennifer.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
- 초록/해제
- 요약Anthropogenic emissions have and continue to degrade air quality and alter chemical regimes in the atmosphere. Emissions of greenhouse gases have increased global temperatures, contributed to increasingly arid conditions, and exacerbated wildfire seasonal lengths and intensities. Wildfires emit a wide array of carcinogenic, highly reactive volatile organic compounds (VOCs). Urban emissions of oxides of nitrogen leads to the formation of secondary pollutants like ozone and organic aerosols. Prediction and mitigation of pollution events requires the understanding of complex VOC oxidation pathways. This work employs ground observations to further constrain VOC emissions from wildfires, assess the accuracy of ground-monitoring network HCHO measurements and determine temporal changes in urban HCHO concentrations, and evaluate the accuracy of satellite products when monitoring NO2 over airports.We use measurements from a proton transfer reaction time-of-flight mass spectrometer to develop emission factors (EFs) for 15 species for an understudied temperate forest biome in New South Wales, Australia. We conclude that EFs are applicable across geographically different but analogous biomes for modeling purposes. We then evaluate the precision and accuracy of three fast measurement, in-situ HCHO monitors and compare with observations from the TO-11A methodology at a photochemical assessment monitoring station in Atlanta. We find that TO-11A measurements are biased low, and that decreases in HCHO concentrations since 1999 are small. Finally, we use NO2 vertical profile measurements from a Pandora spectrometer and profile estimates from chemistry transport model to recalculate satellite retrievals. We find the recalculated quantities are biased low relative to independent ground observations.
- 일반주제명
- Pollutants
- 일반주제명
- Humidity
- 일반주제명
- Campaigns
- 일반주제명
- Ozone
- 일반주제명
- Emissions
- 일반주제명
- Seasons
- 일반주제명
- Aerosols
- 일반주제명
- Aviation
- 일반주제명
- Biomass
- 일반주제명
- Ecosystems
- 일반주제명
- Aircraft
- 일반주제명
- Greenhouse gases
- 일반주제명
- Oxidation
- 일반주제명
- Fourier transforms
- 일반주제명
- Phenols
- 일반주제명
- Forest & brush fires
- 일반주제명
- Satellites
- 일반주제명
- Aerospace engineering
- 일반주제명
- Climate change
- 일반주제명
- Forestry
- 일반주제명
- Mathematics
- 일반주제명
- Organic chemistry
- 일반주제명
- Transportation
- 기본자료저록
- Dissertations Abstracts International. 87-05A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2024 us c eng d■001000017360299
■00520260202105503
■006m o d
■007cr#unu||||||||
■020 ▼a9798263325282
■035 ▼a(MiAaPQ)AAI32307961
■035 ▼a(MiAaPQ)GeorgiaTech78546
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620
■1001 ▼aMouat, Asher P.
■24510▼aObservations of Wildfire Volatile Organic Compound Emissions and Urban Ozone Precursors
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a189 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: A.
■500 ▼aAdvisor: Kaiser, Jennifer.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2024.
■520 ▼aAnthropogenic emissions have and continue to degrade air quality and alter chemical regimes in the atmosphere. Emissions of greenhouse gases have increased global temperatures, contributed to increasingly arid conditions, and exacerbated wildfire seasonal lengths and intensities. Wildfires emit a wide array of carcinogenic, highly reactive volatile organic compounds (VOCs). Urban emissions of oxides of nitrogen leads to the formation of secondary pollutants like ozone and organic aerosols. Prediction and mitigation of pollution events requires the understanding of complex VOC oxidation pathways. This work employs ground observations to further constrain VOC emissions from wildfires, assess the accuracy of ground-monitoring network HCHO measurements and determine temporal changes in urban HCHO concentrations, and evaluate the accuracy of satellite products when monitoring NO2 over airports.We use measurements from a proton transfer reaction time-of-flight mass spectrometer to develop emission factors (EFs) for 15 species for an understudied temperate forest biome in New South Wales, Australia. We conclude that EFs are applicable across geographically different but analogous biomes for modeling purposes. We then evaluate the precision and accuracy of three fast measurement, in-situ HCHO monitors and compare with observations from the TO-11A methodology at a photochemical assessment monitoring station in Atlanta. We find that TO-11A measurements are biased low, and that decreases in HCHO concentrations since 1999 are small. Finally, we use NO2 vertical profile measurements from a Pandora spectrometer and profile estimates from chemistry transport model to recalculate satellite retrievals. We find the recalculated quantities are biased low relative to independent ground observations.
■590 ▼aSchool code: 0078.
■650 4▼aVolatile organic compounds--VOCs
■650 4▼aPollutants
■650 4▼aHumidity
■650 4▼aCampaigns
■650 4▼aOzone
■650 4▼aEmissions
■650 4▼aSeasons
■650 4▼aAerosols
■650 4▼aAviation
■650 4▼aBiomass
■650 4▼aEcosystems
■650 4▼aAircraft
■650 4▼aGreenhouse gases
■650 4▼aOxidation
■650 4▼aFourier transforms
■650 4▼aPhenols
■650 4▼aForest & brush fires
■650 4▼aSatellites
■650 4▼aAerospace engineering
■650 4▼aClimate change
■650 4▼aForestry
■650 4▼aMathematics
■650 4▼aOrganic chemistry
■650 4▼aTransportation
■690 ▼a0538
■690 ▼a0404
■690 ▼a0478
■690 ▼a0405
■690 ▼a0490
■690 ▼a0709
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05A.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360299▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


