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Forcings of Indo-Pacific Warm Pool Climate During the Past one Million Years
Forcings of Indo-Pacific Warm Pool Climate During the Past one Million Years
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103513
- ISBN
- 9798283491332
- DDC
- 363.738
- 서명/저자
- Forcings of Indo-Pacific Warm Pool Climate During the Past one Million Years
- 발행사항
- [Sl] : Brown University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 206 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: A.
- 주기사항
- Advisor: Russell, James.
- 학위논문주기
- Thesis (Ph.D.)--Brown University, 2024.
- 초록/해제
- 요약The past one million years encompasses major changes in the Earth's glacial-interglacial cycles, with a shift from 41- to 100-kyr during the Mid-Pleistocene Transition (MPT) and increased interglacial CO 2during the Mid-Brunhes Transition (MBT). These reorganizations of Earth's climate and carbon cycle provide natural experiments to test the impacts of CO 2on tropical rainfall and water resources. We produced long, orbitally-resolved hydroclimate and vegetation reconstructions to uncover the evolution of hydroclimate and its primary climate forcing mechanisms in the Maritime Continent (MC), a region with global importance through transport of heat to higher latitudes. We provide a strong framework for interpreting branched glycerol dialkyl glycerol tetraethers (brGDGT), leaf wax d2H and d13C records from Lake Towuti, Indonesia on orbital timescales by producing records that span the last deglaciation. We then produce 1-Myr, orbital-scale temperature, hydroclimate, and vegetation records from Lake Towuti to constrain the controls on MC climate across major reorganizations of Earth's carbon cylce. We show that the MC experienced hydroclimatic stability during a period of stable, warm temperature prior to the MBT, followed by increasing orbital-scale instability as interglacial CO 2concentrations rose after the MBT, suggesting strong sensitivity to climate warming. We observe prominent 41-kyr cycles in rainfall, suggesting an important role for ice volume and/or greenhouse gas concentrations in controlling precipitation in the MC. Insolation has long been presumed as the dominant forcing of hydroclimate in the tropics, yet our data point to temperature and glacial-interglacial cycles as the primary forcing of MC hydroclimate.
- 일반주제명
- Emissions
- 일반주제명
- Sea level
- 일반주제명
- Earth
- 일반주제명
- Sediments
- 일반주제명
- Lipids
- 일반주제명
- Core curriculum
- 일반주제명
- Boundary conditions
- 일반주제명
- Climate change
- 일반주제명
- Waxes
- 일반주제명
- Vegetation
- 일반주제명
- Precipitation
- 일반주제명
- Cooling
- 일반주제명
- Greenhouse gases
- 일반주제명
- Carbon dioxide
- 일반주제명
- Isotopes
- 일반주제명
- Regions
- 일반주제명
- Climate science
- 일반주제명
- Salinity
- 일반주제명
- Aquatic sciences
- 일반주제명
- Biological oceanography
- 일반주제명
- Curriculum development
- 일반주제명
- Mathematics
- 일반주제명
- Meteorology
- 기타저자
- Brown University Department of Earth Environmental and Planetary Sciences
- 기본자료저록
- Dissertations Abstracts International. 86-12A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103513
■006m o d
■007cr#unu||||||||
■020 ▼a9798283491332
■035 ▼a(MiAaPQ)AAI32007344
■035 ▼a(MiAaPQ)BrownUnivm4ye4chw
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a363.738
■1001 ▼aParish, Meredith C.
■24510▼aForcings of Indo-Pacific Warm Pool Climate During the Past one Million Years
■260 ▼a[Sl]▼bBrown University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a206 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: A.
■500 ▼aAdvisor: Russell, James.
■5021 ▼aThesis (Ph.D.)--Brown University, 2024.
■520 ▼aThe past one million years encompasses major changes in the Earth's glacial-interglacial cycles, with a shift from 41- to 100-kyr during the Mid-Pleistocene Transition (MPT) and increased interglacial CO 2during the Mid-Brunhes Transition (MBT). These reorganizations of Earth's climate and carbon cycle provide natural experiments to test the impacts of CO 2on tropical rainfall and water resources. We produced long, orbitally-resolved hydroclimate and vegetation reconstructions to uncover the evolution of hydroclimate and its primary climate forcing mechanisms in the Maritime Continent (MC), a region with global importance through transport of heat to higher latitudes. We provide a strong framework for interpreting branched glycerol dialkyl glycerol tetraethers (brGDGT), leaf wax d2H and d13C records from Lake Towuti, Indonesia on orbital timescales by producing records that span the last deglaciation. We then produce 1-Myr, orbital-scale temperature, hydroclimate, and vegetation records from Lake Towuti to constrain the controls on MC climate across major reorganizations of Earth's carbon cylce. We show that the MC experienced hydroclimatic stability during a period of stable, warm temperature prior to the MBT, followed by increasing orbital-scale instability as interglacial CO 2concentrations rose after the MBT, suggesting strong sensitivity to climate warming. We observe prominent 41-kyr cycles in rainfall, suggesting an important role for ice volume and/or greenhouse gas concentrations in controlling precipitation in the MC. Insolation has long been presumed as the dominant forcing of hydroclimate in the tropics, yet our data point to temperature and glacial-interglacial cycles as the primary forcing of MC hydroclimate.
■590 ▼aSchool code: 0024.
■650 4▼aEmissions
■650 4▼aSea level
■650 4▼aEarth
■650 4▼aSediments
■650 4▼aLipids
■650 4▼aCore curriculum
■650 4▼aBoundary conditions
■650 4▼aClimate change
■650 4▼aWaxes
■650 4▼aVegetation
■650 4▼aPrecipitation
■650 4▼aCooling
■650 4▼aGreenhouse gases
■650 4▼aCarbon dioxide
■650 4▼aIsotopes
■650 4▼aRegions
■650 4▼aClimate science
■650 4▼aSalinity
■650 4▼aAquatic sciences
■650 4▼aBiological oceanography
■650 4▼aCurriculum development
■650 4▼aMathematics
■650 4▼aMeteorology
■690 ▼a0404
■690 ▼a0792
■690 ▼a0416
■690 ▼a0727
■690 ▼a0405
■690 ▼a0557
■71020▼aBrown University▼bDepartment of Earth, Environmental, and Planetary Sciences.
■7730 ▼tDissertations Abstracts International▼g86-12A.
■790 ▼a0024
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357446▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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