A Salt Finger Tracer Release Experiment
A Salt Finger Tracer Release Experiment
批准号:
0081502
负责人:
Raymond Schmitt
金额:
$215.6万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-09-01 至 2004-08-31
中文摘要
0081502施密特将在热带大西洋西部广泛的温盐阶梯区域进行广泛的野外试验,以研究双扩散在次表层水团转化中的作用。一种有目的的示踪剂(六氟化硫SF6)将被释放到楼梯中间附近的一层中,以获得对垂直混合和横向扩散的9个月的可靠测量。用剖面仪测量细微结构将确定湍流动能和热方差的耗散率。这些耗散率与垂直扩散系数的关系公式在很大程度上取决于混合的能量来源是盐指运动还是湍流。这项实验将确定这两个源对示踪剂、盐和热的垂直混合的相对贡献。系泊的CTD/Current剖面仪将用于将精细和微结构调查与长期示踪剂分散联系起来。希望这项工作将有助于改进大气环流和气候预报模式的昼夜混合参数。
英文摘要
0081502 SchmittAn extensive field experiment will be conducted in the area of the extensive thermohaline staircase in the western tropical Atlantic to investigate the role of double diffusion in subsurface water mass transformation. A purposeful tracer (Sulfur hexafluoride SF6) will be released into a layer near the middle of the staircase to obtain a robust 9-month measurement of vertical mixing and lateral dispersion. Surveys of fine- and microstructure with a profiling instrument will determine the dissipation rates of turbulent kinetic energy and thermal variance. Formulae for the relationship of these dissipation rates to vertical diffusivity depend dramatically on whether the source of energy for mixing is salt fingering or turbulence. This experiment will determine the relative contribution of these two sources to the vertical mixing of tracer, salt and heat. A moored CTD/Current profiler will be used to relate fine- and microstructure surveys to the long term tracer dispersion. The hope is that the work will lead to improved parameterizations of diapycnal mixing for general circulation and climate prediction models.
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Parameterizations of Salt Fingers in the Ocean
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批准号:1433132
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项目类别:Standard Grant
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资助金额:$58.59万
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财政年份:2014
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负责人:Raymond Schmitt
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依托单位:
Long Term Salinity Measurements
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批准号:1129364
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项目类别:Standard Grant
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资助金额:$71.64万
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财政年份:2011
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负责人:Raymond Schmitt
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依托单位:
Collaborative Research: Microstructure and Mixing Measurements During SPURS
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批准号:1129646
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项目类别:Standard Grant
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资助金额:$192.6万
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财政年份:2011
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负责人:Raymond Schmitt
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依托单位:
MRI: Development of a Refractive Gradiometer Probe for Oceanic Microstructure
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批准号:0723072
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项目类别:Standard Grant
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资助金额:$75.39万
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财政年份:2007
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负责人:Raymond Schmitt
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依托单位:
Collaborative Research: Quantitative Estimates of Oceanic Turbulence and Temperature Structure from Seismic Reflection Data
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批准号:0647573
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:2007
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负责人:Raymond Schmitt
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依托单位:
Assessing the Oceanic Water Cycle with an Integrative Approach
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批准号:0647949
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项目类别:Standard Grant
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资助金额:$79.13万
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财政年份:2007
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负责人:Raymond Schmitt
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依托单位:
Development of a new generation of diamond-coated thermometers to extend small-scale oceanic measurements of temperature
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批准号:0619353
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:2006
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负责人:Raymond Schmitt
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依托单位:
Collaborative Research: Quantitative Investigation of Finestructure and Internal Waves in the Norwegian Sea from Simultaneous Temperature and Acoustic Reflectance Measurements
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批准号:0452265
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项目类别:Standard Grant
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资助金额:$15.13万
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财政年份:2005
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负责人:Raymond Schmitt
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依托单位:
A Facility for Dynamic-Response Studies
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批准号:0240956
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项目类别:Standard Grant
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资助金额:$22.14万
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财政年份:2003
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负责人:Raymond Schmitt
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依托单位:
Development of a Low Cost, Stable CTD Measurement System for Autonomous Oceanographic Instruments
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批准号:9711869
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项目类别:Standard Grant
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资助金额:$56.0万
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财政年份:1997
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负责人:Raymond Schmitt
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依托单位:
Upper Ocean Response to Thermohaline Forcing in the Tropical Atlantic
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批准号:9531869
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项目类别:Continuing Grant
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资助金额:$102.55万
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财政年份:1996
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负责人:Raymond Schmitt
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依托单位:
Studies of the Global Hydrologic Cycle
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批准号:9520375
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项目类别:Continuing Grant
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资助金额:$34.5万
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财政年份:1995
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负责人:Raymond Schmitt
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依托单位:
Abyssal Mixing Measurements for the Brazil Basin Tracer Release Experiment
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批准号:9415589
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项目类别:Continuing Grant
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资助金额:$161.5万
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财政年份:1995
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负责人:Raymond Schmitt
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依托单位:
An Exploratory Program of Deep Equatorial Current, Internal Wave, and Turbulence Observations
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批准号:9401223
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项目类别:Continuing Grant
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资助金额:$45.0万
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财政年份:1994
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负责人:Raymond Schmitt
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依托单位:
An Oceanographic Calibration Facility
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批准号:9009430
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项目类别:Standard Grant
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资助金额:$15.8万
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财政年份:1990
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负责人:Raymond Schmitt
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依托单位:
Velocity Structure and Mixing in a Warm Core Ring
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批准号:8911053
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项目类别:Continuing Grant
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资助金额:$80.5万
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财政年份:1989
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负责人:Raymond Schmitt
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依托单位:
Development of a Physical Oceanographic Calibration Facility
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批准号:8716999
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项目类别:Standard Grant
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资助金额:$4.81万
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财政年份:1988
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负责人:Raymond Schmitt
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依托单位:
Continued Analysis of C-Salt Data
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批准号:8813060
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项目类别:Continuing Grant
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资助金额:$19.4万
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财政年份:1988
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负责人:Raymond Schmitt
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依托单位:
A HYDROGRAPHIC SURVEY OF THE SUBTROPICAL CONVERGENCE FRONT IN FEBRUARY 1986
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批准号:8515336
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项目类别:Standard Grant
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资助金额:$42.5万
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财政年份:1986
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负责人:Raymond Schmitt
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依托单位:
Survey, Analysis and Modeling of a Thermohaline Staircase System
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批准号:8409323
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项目类别:Continuing Grant
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资助金额:$97.5万
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财政年份:1984
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负责人:Raymond Schmitt
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依托单位:
国内基金
海外基金
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