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Using Novel Observations to Resolve Energy Cascades and Vertical Transport Associated With Small-Scale Ocean Processes
Using Novel Observations to Resolve Energy Cascades and Vertical Transport Associated With Small-Scale Ocean Processes
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104645
- ISBN
- 9798286495399
- DDC
- 551.46
- 서명/저자
- Using Novel Observations to Resolve Energy Cascades and Vertical Transport Associated With Small-Scale Ocean Processes
- 발행사항
- [Sl] : University of California, San Diego, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 117 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Lucas, Andrew J.
- 학위논문주기
- Thesis (Ph.D.)--University of California, San Diego, 2025.
- 초록/해제
- 요약Small scale, non-linear, and rapidly varying structures drive vertical transports in the ocean. Observing these small scale structures requires innovative techniques and instrumentation. In this thesis we develop novel instrumentation and techniques that enable new understanding of small scale, dynamic ocean systems. We apply these techniques to investigate how energy is transferred between internal waves and dissipation and examine vertical transport processes that supply nutrients to a productive coastal ecosystem. In the first chapter we provide a description of a new towed phased array Doppler sonar (TPADS). TPADS is designed to measure the three-dimensional ocean velocity field. We demonstrate the ability to measure shear layers in three dimensions, and present measurements of a surface-intensified front with unprecedented horizontal resolution. In the second chapter we use an off the shelf, high resolution, pulse-coherent Doppler sonar attached to a Wirewalker profiler to examine energy pathways between internal waves and turbulence in a steep submarine canyon. We use observations of shear spectra to show that predictions about energy transfers between internal waves and turbulence formulated for the weakly non-linear open ocean thermocline seem to hold even as internal waves become meaningfully non-linear. In the third chapter we investigate the vertical transport processes that supply nutrients to a sheltered embayment in the California Current during the spring upwelling season. A combination of along isopycnal vertical transport driven by a submesoscale front and wind-driven vertical mixing delivers nutrients to surface waters.
- 일반주제명
- Physical oceanography
- 일반주제명
- Ocean engineering
- 기타저자
- University of California, San Diego Scripps Institution of Oceanography
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798286495399
■035 ▼a(MiAaPQ)AAI32114606
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a551.46
■1001 ▼aNorthcott, Devon.
■24510▼aUsing Novel Observations to Resolve Energy Cascades and Vertical Transport Associated With Small-Scale Ocean Processes
■260 ▼a[Sl]▼bUniversity of California, San Diego▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a117 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Lucas, Andrew J.
■5021 ▼aThesis (Ph.D.)--University of California, San Diego, 2025.
■520 ▼aSmall scale, non-linear, and rapidly varying structures drive vertical transports in the ocean. Observing these small scale structures requires innovative techniques and instrumentation. In this thesis we develop novel instrumentation and techniques that enable new understanding of small scale, dynamic ocean systems. We apply these techniques to investigate how energy is transferred between internal waves and dissipation and examine vertical transport processes that supply nutrients to a productive coastal ecosystem. In the first chapter we provide a description of a new towed phased array Doppler sonar (TPADS). TPADS is designed to measure the three-dimensional ocean velocity field. We demonstrate the ability to measure shear layers in three dimensions, and present measurements of a surface-intensified front with unprecedented horizontal resolution. In the second chapter we use an off the shelf, high resolution, pulse-coherent Doppler sonar attached to a Wirewalker profiler to examine energy pathways between internal waves and turbulence in a steep submarine canyon. We use observations of shear spectra to show that predictions about energy transfers between internal waves and turbulence formulated for the weakly non-linear open ocean thermocline seem to hold even as internal waves become meaningfully non-linear. In the third chapter we investigate the vertical transport processes that supply nutrients to a sheltered embayment in the California Current during the spring upwelling season. A combination of along isopycnal vertical transport driven by a submesoscale front and wind-driven vertical mixing delivers nutrients to surface waters.
■590 ▼aSchool code: 0033.
■650 4▼aPhysical oceanography
■650 4▼aOcean engineering
■653 ▼aSmall scale structures
■653 ▼aCoastal ecosystem
■653 ▼aSteep submarine canyon
■690 ▼a0415
■690 ▼a0547
■71020▼aUniversity of California, San Diego▼bScripps Institution of Oceanography.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0033
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358332▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
