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Quantification of Methane Emissions From Discrete Sources
Quantification of Methane Emissions From Discrete Sources
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151428
- ISBN
- 9798382777382
- DDC
- 628
- 서명/저자
- Quantification of Methane Emissions From Discrete Sources
- 발행사항
- [Sl] : Harvard University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 140 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
- 주기사항
- Advisor: Wofsy, Steven C.
- 학위논문주기
- Thesis (Ph.D.)--Harvard University, 2024.
- 초록/해제
- 요약Various point source methane quantification approaches enable comprehensive estimation of methane emissions, which is essential for effective methane monitoring and mitigating strategies. This study uses remote sensing data from projects like MethaneAIR and MethaneSAT to develop robust quantification methods for methane emissions. We explore techniques such as modified integrated mass enhancement (mIME), divergence integral (DI), ratio method, and Geostatistical Inverse Model (GIM) approach, considering factors like the nature of the sources, their size, the background noise, and topography.In the first chapter, we aim to develop rigorous point source quantification approaches for MethaneAIR and MethaneSAT satellites. We explore different techniques to quantify methane emissions from discrete sources and devise a method based on large eddy simulations. Although initially tested on high-resolution Chinese satellites due to the early stage of the Methane AIR and MethaneSAT projects, these algorithms pave the way for faster development of methods tailored to our projects.In the second chapter, we apply our quantification methods to controlled release experiments and evaluate their performance on MethaneAIR data. Our findings show good agreement between estimated and released emissions as well as mIME and DI quantification methods. We develop a decision tree to determine the most suitable method for specific scenarios, enhancing our under- standing of method limitations and informing the development of MethaneSAT algorithms.The final chapter focuses on a detection limit analysis of MethaneAIR to evaluate MethaneSAT's potential performance. Using large eddy simulations, we estimate MethaneSAT's detection limit as a function of noise across different resolutions. Additionally, we demonstrated successful point source estimation based on the GIM, bridging the gap between point source and area source quantification techniques. The findings better prepare us for MethaneSAT data analysis.In conclusion, this study lays the foundation for methane point source quantification for the MethaneAIR and MethaneSAT projects. The lessons learned extend beyond our projects; they can allow the appropriate selection of methane emission quantification approaches for various scenarios.
- 일반주제명
- Environmental science
- 일반주제명
- Remote sensing
- 키워드
- Greenhouse gas
- 키워드
- Methane
- 기타저자
- Harvard University Engineering and Applied Sciences - Engineering Sciences
- 기본자료저록
- Dissertations Abstracts International. 85-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■007cr#unu||||||||
■020 ▼a9798382777382
■035 ▼a(MiAaPQ)AAI31295030
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a628
■1001 ▼aChulakadabba, Apisada.▼0(orcid)0000-0001-8180-4200
■24510▼aQuantification of Methane Emissions From Discrete Sources
■260 ▼a[Sl]▼bHarvard University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a140 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: B.
■500 ▼aAdvisor: Wofsy, Steven C.
■5021 ▼aThesis (Ph.D.)--Harvard University, 2024.
■520 ▼aVarious point source methane quantification approaches enable comprehensive estimation of methane emissions, which is essential for effective methane monitoring and mitigating strategies. This study uses remote sensing data from projects like MethaneAIR and MethaneSAT to develop robust quantification methods for methane emissions. We explore techniques such as modified integrated mass enhancement (mIME), divergence integral (DI), ratio method, and Geostatistical Inverse Model (GIM) approach, considering factors like the nature of the sources, their size, the background noise, and topography.In the first chapter, we aim to develop rigorous point source quantification approaches for MethaneAIR and MethaneSAT satellites. We explore different techniques to quantify methane emissions from discrete sources and devise a method based on large eddy simulations. Although initially tested on high-resolution Chinese satellites due to the early stage of the Methane AIR and MethaneSAT projects, these algorithms pave the way for faster development of methods tailored to our projects.In the second chapter, we apply our quantification methods to controlled release experiments and evaluate their performance on MethaneAIR data. Our findings show good agreement between estimated and released emissions as well as mIME and DI quantification methods. We develop a decision tree to determine the most suitable method for specific scenarios, enhancing our under- standing of method limitations and informing the development of MethaneSAT algorithms.The final chapter focuses on a detection limit analysis of MethaneAIR to evaluate MethaneSAT's potential performance. Using large eddy simulations, we estimate MethaneSAT's detection limit as a function of noise across different resolutions. Additionally, we demonstrated successful point source estimation based on the GIM, bridging the gap between point source and area source quantification techniques. The findings better prepare us for MethaneSAT data analysis.In conclusion, this study lays the foundation for methane point source quantification for the MethaneAIR and MethaneSAT projects. The lessons learned extend beyond our projects; they can allow the appropriate selection of methane emission quantification approaches for various scenarios.
■590 ▼aSchool code: 0084.
■650 4▼aEnvironmental engineering
■650 4▼aEnvironmental science
■650 4▼aRemote sensing
■653 ▼aGreenhouse gas
■653 ▼aLarge eddy simulation
■653 ▼aMethane
■653 ▼aDivergence integral
■653 ▼aGeostatistical Inverse Model
■690 ▼a0775
■690 ▼a0768
■690 ▼a0799
■71020▼aHarvard University▼bEngineering and Applied Sciences - Engineering Sciences.
■7730 ▼tDissertations Abstracts International▼g85-12B.
■790 ▼a0084
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161673▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


