서브메뉴
검색
Cloudy with a Chance of Microphysics: Modeling Droplet Collisions for the Climate Scale
Cloudy with a Chance of Microphysics: Modeling Droplet Collisions for the Climate Scale
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104747
- ISBN
- 9798290656700
- DDC
- 551.57
- 저자명
- de Jong, Emily.
- 서명/저자
- Cloudy with a Chance of Microphysics: Modeling Droplet Collisions for the Climate Scale
- 발행사항
- [Sl] : California Institute of Technology, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 140 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Schneider, Tapio.
- 학위논문주기
- Thesis (Ph.D.)--California Institute of Technology, 2025.
- 초록/해제
- 요약Feedbacks between a warming atmosphere, emission of aerosols, and clouds and precipitation are some of the most difficult aspects for climate models to accurately capture. While climate models operate at resolutions of tens or hundreds of kilometers, many of the physics that determine how and where clouds form or precipitate function at the micron droplet scale. Due to this disparity in physical scales, most of these cloud physics must be modeled with only a few approximate quantities and physical equations. These simplifications lead to large uncertainties about climate forcings such as the sensitivity of global warming to human-emitted aerosols.This work presents several promising new techniques for modeling and understanding hydrometeors in the climate system, with a particular focus on processes that involve collisions between droplets. First, I extend a high-complexity high-fidelity Lagrangian microphysics method to represent the process of breakup, in which colliding droplets fragment upon collision. Next, I introduce two new methods which attempt to reduce the assumptions inherent to modeling droplet coalescence, in which colliding droplets combine to form a larger drop. The first method uses a spectral finite element approach, while the second generalizes this technique using a method of moments to create a fully flexible microphysics scheme. Finally, I turn to remote observations of clouds, aerosols, and lightning over busy shipping regions to offer new techniques for quantifying aerosol-cloud interactions from creative data resources. This combination of high-fidelity modeling tools, observational data, and efficient numerical methods offers a path toward improving our understanding of the role of cloud microphysics in our climate system.
- 일반주제명
- Precipitation
- 일반주제명
- Physics
- 일반주제명
- Greenhouse gases
- 일반주제명
- Atmosphere
- 일반주제명
- Earth
- 일반주제명
- Aerosols
- 일반주제명
- Lightning
- 일반주제명
- Supercomputers
- 일반주제명
- Probability
- 일반주제명
- Atmospheric chemistry
- 일반주제명
- Fluid mechanics
- 일반주제명
- Climate change
- 일반주제명
- Rain
- 일반주제명
- Mechanical engineering
- 일반주제명
- Clouds
- 기타저자
- California Institute of Technology Engineering and Applied Science
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2025 us c eng d■001000017358758
■00520260202104747
■006m o d
■007cr#unu||||||||
■020 ▼a9798290656700
■035 ▼a(MiAaPQ)AAI32151302
■035 ▼a(MiAaPQ)Caltech16724
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a551.57
■1001 ▼ade Jong, Emily.
■24510▼aCloudy with a Chance of Microphysics: Modeling Droplet Collisions for the Climate Scale
■260 ▼a[Sl]▼bCalifornia Institute of Technology▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a140 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Schneider, Tapio.
■5021 ▼aThesis (Ph.D.)--California Institute of Technology, 2025.
■520 ▼aFeedbacks between a warming atmosphere, emission of aerosols, and clouds and precipitation are some of the most difficult aspects for climate models to accurately capture. While climate models operate at resolutions of tens or hundreds of kilometers, many of the physics that determine how and where clouds form or precipitate function at the micron droplet scale. Due to this disparity in physical scales, most of these cloud physics must be modeled with only a few approximate quantities and physical equations. These simplifications lead to large uncertainties about climate forcings such as the sensitivity of global warming to human-emitted aerosols.This work presents several promising new techniques for modeling and understanding hydrometeors in the climate system, with a particular focus on processes that involve collisions between droplets. First, I extend a high-complexity high-fidelity Lagrangian microphysics method to represent the process of breakup, in which colliding droplets fragment upon collision. Next, I introduce two new methods which attempt to reduce the assumptions inherent to modeling droplet coalescence, in which colliding droplets combine to form a larger drop. The first method uses a spectral finite element approach, while the second generalizes this technique using a method of moments to create a fully flexible microphysics scheme. Finally, I turn to remote observations of clouds, aerosols, and lightning over busy shipping regions to offer new techniques for quantifying aerosol-cloud interactions from creative data resources. This combination of high-fidelity modeling tools, observational data, and efficient numerical methods offers a path toward improving our understanding of the role of cloud microphysics in our climate system.
■590 ▼aSchool code: 0037.
■650 4▼aPrecipitation
■650 4▼aPhysics
■650 4▼aGreenhouse gases
■650 4▼aAtmosphere
■650 4▼aEarth
■650 4▼aAerosols
■650 4▼aLightning
■650 4▼aSupercomputers
■650 4▼aProbability
■650 4▼aAtmospheric chemistry
■650 4▼aFluid mechanics
■650 4▼aClimate change
■650 4▼aRain
■650 4▼aMechanical engineering
■650 4▼aClouds
■690 ▼a0371
■690 ▼a0404
■690 ▼a0548
■690 ▼a0204
■690 ▼a0605
■71020▼aCalifornia Institute of Technology▼bEngineering and Applied Science.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0037
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358758▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


