Collaborative Research: Relating Topographic Complexity and Circulation Patterns on Coral Reefs from Colony-Scale to Reef-Scale
合作研究:从珊瑚礁规模到珊瑚礁规模,联系地形复杂性和珊瑚礁环流模式
基本信息
- 批准号:1435530
- 负责人:
- 金额:$ 27.26万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2014
- 资助国家:美国
- 起止时间:2014-09-01 至 2019-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Many important coastal marine systems either grow on or form complex topography that varies continuously over a wide range of spatial scales. For example, on coral reefs, topography varies from branch (centimeter) to patch (10-100 meters) to reef (several kilometers) scales. In the coastal ocean, water motion is forced past topography at a wide range of time scales by surface waves, tides and slowly varying currents. Understanding how these flows interact with complex multi-scale topography is critical for predicting circulation patterns in shallow coastal systems like reefs. At present, the physics of these interactions is not included explicitly in observational efforts or modeling studies and one of the biggest challenges for predictive modeling of circulation in coastal systems like reefs is a lack of methods for a priori estimation of drag and mixing parameters from topography spatial statistics. This project will provide a theoretical and conceptual framework for flow over complex topography in the coastal ocean that includes the physics of interactions of currents and waves with multi-scale topography. New parameterizations for flow over complex topography will be developed for use in ocean circulation models to improve their predictive ability in important coastal systems like coral reefs. Improved predictions of circulation over reefs should then lead to better estimates of cross-reef exchange and transport of nutrients and contaminants, as well as a better description of larval retention, dispersion and connectivity. The field study will be conducted at the NSF-supported Moorea Coral Reef Long Term Ecological Research (MCR-LTER) site which brings together many leaders in coral reef science. Through planned interactions with MCR-LTER and French/Tahitian researchers the results will directly reach a multi-disciplinary international audience. A PhD student will be trained in physical oceanographic field work, modeling, and theory, and gain interdisciplinary and international experience by interacting with the MCR-LTER. At least nine undergraduate students will conduct independent studies and write honors theses related to the project.In this project, a theoretical and conceptual framework will be developed for the interaction of currents and waves with multi-scale topography. A set of novel field measurements and simulations will examine how flow with different time scales interacts with topography characterized by different obstacle size, spacing, and patchiness. Topography spatial statistics will be computed from high-resolution satellite bathymetry and 3D scanning sonar measurements. Spatial variability in currents on the reef at scales from 0.2-500 meters will be quantified using a nested sampling array. Field measurements over constructed geometries will investigate how natural flow that varies at a range of time scales interacts with bottom topography with different length scales. Numerical modeling of steady and unsteady flow over idealized reef geometries and real reef segments will examine dynamics of flow-topography interactions across the range of currents, waves, and topography length scales at the field site.
许多重要的沿海海洋系统要么生长在复杂的地形上,要么形成复杂的地形,这些地形在大范围的空间尺度上不断变化。例如,在珊瑚礁上,地形从分枝(厘米)到斑块(10-100米)到珊瑚礁(几公里)不等。在沿海海域,水面波浪、潮汐和缓慢变化的海流迫使海水运动在很宽的时间尺度上通过地形。了解这些水流如何与复杂的多尺度地形相互作用,对于预测珊瑚礁等浅海系统的环流模式至关重要。目前,这些相互作用的物理学并没有明确地包括在观测工作或建模研究中,而对珊瑚礁等沿海系统的环流进行预测建模的最大挑战之一是缺乏从地形空间统计中先验估计阻力和混合参数的方法。该项目将为沿海海洋复杂地形上的流动提供一个理论和概念框架,包括多尺度地形下海流和波浪相互作用的物理学。对于复杂地形上的流动,将开发新的参数化,用于海洋环流模型,以提高它们对珊瑚礁等重要海岸系统的预测能力。对珊瑚礁上环流的改进预测将导致对营养物质和污染物的跨珊瑚礁交换和运输的更好估计,以及对幼虫滞留、分散和连通性的更好描述。实地研究将在美国国家科学基金会支持的Moorea珊瑚礁长期生态研究(MCR-LTER)站点进行,该站点汇集了许多珊瑚礁科学领域的领导者。通过与MCR-LTER和法国/塔希提研究人员有计划的互动,研究结果将直接传达给多学科的国际受众。博士研究生将接受物理海洋野外工作、建模和理论方面的培训,并通过与MCR-LTER的互动获得跨学科和国际经验。至少有九名本科生将进行独立研究并撰写与该项目相关的荣誉论文。在这个项目中,一个理论和概念框架将发展的水流和波浪与多尺度地形的相互作用。一组新颖的现场测量和模拟将研究不同时间尺度的流动如何与不同障碍物大小、间距和斑块特征的地形相互作用。地形空间统计数据将通过高分辨率卫星测深和三维扫描声纳测量来计算。在0.2-500米的尺度上,珊瑚礁上洋流的空间变异性将使用嵌套采样阵列进行量化。对构造几何形状的现场测量将研究在时间尺度范围内变化的自然流动如何与不同长度尺度的底部地形相互作用。在理想的珊瑚礁几何形状和真实的珊瑚礁段上进行稳态和非稳态流动的数值模拟,将在现场的水流、波浪和地形长度尺度范围内检查流动-地形相互作用的动力学。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Estimating Geometric Properties of Coral Reef Topography Using Obstacle‐ and Surface‐Based Approaches
使用基于障碍物和表面的方法估计珊瑚礁地形的几何特性
- DOI:10.1029/2019jc015870
- 发表时间:2020
- 期刊:
- 影响因子:0
- 作者:Duvall, Melissa S.;Rosman, Johanna H.;Hench, James L.
- 通讯作者:Hench, James L.
Boundary layer dynamics and bottom friction in combined wave–current flows over large roughness elements
组合波电流流过大粗糙度元素时的边界层动力学和底部摩擦
- DOI:10.1017/jfm.2021.941
- 发表时间:2022
- 期刊:
- 影响因子:3.7
- 作者:Yu, Xiao;Rosman, Johanna H.;Hench, James L.
- 通讯作者:Hench, James L.
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Johanna Rosman其他文献
Johanna Rosman的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Johanna Rosman', 18)}}的其他基金
Collaborative Research: Combined Waves and Currents over Multi-Scale Topography: From Boundary Layer Dynamics to Parameterization
合作研究:多尺度地形上的组合波和流:从边界层动力学到参数化
- 批准号:
2123707 - 财政年份:2021
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant
Idealized simulations of turbulence advected by surface waves: Implications for interpreting turbulence measurements in shallow water
表面波平流湍流的理想化模拟:对解释浅水中湍流测量的影响
- 批准号:
1061108 - 财政年份:2011
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
相似海外基金
NSF-BSF: Collaborative Research: Rankine-Hugoniot Conditions Relating the Gyrotropic Regions of Collisionless Shocks in Non-Thermal Plasma
NSF-BSF:合作研究:与非热等离子体中无碰撞激波的回旋区域相关的兰金-于戈尼奥条件
- 批准号:
2010450 - 财政年份:2020
- 资助金额:
$ 27.26万 - 项目类别:
Continuing Grant
NSF-BSF: Collaborative Research: Rankine-Hugoniot Conditions Relating the Gyrotropic Regions of Collisionless Shocks in Non-Thermal Plasma
NSF-BSF:合作研究:与非热等离子体中无碰撞激波的回旋区域相关的兰金-于戈尼奥条件
- 批准号:
2010144 - 财政年份:2020
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant
Collaborative Research: Relating Bulk Composition to Seismic Properties in Crustal Rocks
合作研究:将地壳岩石的块体成分与地震特性联系起来
- 批准号:
1844340 - 财政年份:2018
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant
A Basic Research on Mathematical Modelings Relating to Collaborative Learning
协作学习相关数学建模的基础研究
- 批准号:
18K18653 - 财政年份:2018
- 资助金额:
$ 27.26万 - 项目类别:
Grant-in-Aid for Challenging Research (Exploratory)
Collaborative Research: Relating Bulk Composition to Seismic Properties in Crustal Rocks
合作研究:将地壳岩石的块体成分与地震特性联系起来
- 批准号:
1722935 - 财政年份:2017
- 资助金额:
$ 27.26万 - 项目类别:
Continuing Grant
Collaborative Research: Relating Bulk Composition to Seismic Properties in Crustal Rocks
合作研究:将地壳岩石的块体成分与地震特性联系起来
- 批准号:
1722932 - 财政年份:2017
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant
Collaborative Research: Relating detrital peptide sequences to particulate organic matter diagenetic histories
合作研究:将碎屑肽序列与颗粒有机质成岩历史联系起来
- 批准号:
1457870 - 财政年份:2015
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant
Collaborative Research: Relating detrital peptide sequences to particulate organic matter diagenetic histories
合作研究:将碎屑肽序列与颗粒有机质成岩历史联系起来
- 批准号:
1458017 - 财政年份:2015
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant
Collaborative Research: Relating Topographic Complexity and Circulation Patterns on Coral Reefs from Colony-Scale to Reef-Scale
合作研究:从珊瑚礁规模到珊瑚礁规模,联系地形复杂性和珊瑚礁环流模式
- 批准号:
1435133 - 财政年份:2014
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant
Collaborative Research: Relating architecture, dynamics and temporal correlations in networks of spiking neurons
合作研究:尖峰神经元网络中的结构、动力学和时间相关性
- 批准号:
1122094 - 财政年份:2011
- 资助金额:
$ 27.26万 - 项目类别:
Standard Grant