Collaborative Research: Sea-Level Changes along the Atlantic Coast of the United States: Implications for Glacial Isostatic Adjustment Models and Current Rates of Sea-Level Change
合作研究:美国大西洋沿岸海平面变化:对冰川均衡调整模型和当前海平面变化率的影响
基本信息
- 批准号:0719179
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2007
- 资助国家:美国
- 起止时间:2007-10-01 至 2011-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This project will establish a relative sea-level (RSL) database from the Atlantic Coast of the United States and combine it with data from Atlantic Canada, the United States Gulf Coast and the Caribbean since the Last Glacial Maximum (LGM). These data will be used to validate and refine Glacial Isostatic Adjustment (GIA) models. There is an urgent need for a re-assessment of the quality of the observational evidence of former sea levels from the Atlantic Coast of the United States, as well as concepts inherent in the interpretation of the data. Furthermore, other factors such as sediment compaction and tidal range variations have rarely been taken into account. Such deficiencies in RSL histories represent a significant gap in our understanding of sea level over the past million years, its driving mechanisms and spatially variable expression. They also constitute an extremely important limitation to the dynamical models of the GIA process that are currently employed to evaluate tide-gauge and satellite records of sea-level change so as to isolate the contribution due to climate warming. Broader Impacts: The proposed research will provide unique mentoring opportunities between the PIs and students because the project integrates a wide range of disciplines (e.g. geomorphology, stratigraphy, geophysics, mathematics and physical oceanography). Undergraduates and graduates will be integrally involved in the research and conduct projects through the interdisciplinary degree programs of Pennsylvania State University, Tulane University and University of Pennsylvania, and have access to the theoretical geodynamics group at the University of Toronto and the United States Geological Survey, Woods Hole Science Center. The experience and training they receive will provide fresh perspectives to students planning to embark on careers with environmental firms or government agencies, while mentoring those going on for advanced degrees. A WWW resource will deliver open access to the sea-level database, GIA models, tools, services, publications and reports for academic, government and industrial scientists, educators, students, policy makers and the larger user community. The sea-level observations and the GIA model will form an important and unique contribution to the assessment of national hazards.
该项目将建立美国大西洋沿岸的相对海平面数据库,并将其与加拿大大西洋沿岸、美国墨西哥湾沿岸和加勒比地区自末次冰盛期以来的数据联合收割机结合起来。这些数据将用于验证和完善冰川均衡调整(GIA)模型。迫切需要重新评估美国大西洋沿岸以前海平面的观测证据的质量,以及数据解释中固有的概念。此外,沉积物压实和潮差变化等其他因素很少考虑在内。RSL历史中的这些缺陷代表了我们对过去百万年海平面及其驱动机制和空间变量表达的理解存在重大差距。它们还对目前用来评估海平面变化的验潮仪和卫星记录的GIA过程的动力学模型构成了极为重要的限制,以便将气候变暖的作用分离出来。更广泛的影响:拟议的研究将为PI和学生之间提供独特的指导机会,因为该项目整合了广泛的学科(例如地貌学,地层学,地球物理学,数学和物理海洋学)。本科生和毕业生将通过宾夕法尼亚州立大学、杜兰大学和宾夕法尼亚大学的跨学科学位课程整体参与研究和开展项目,并可以进入多伦多大学和美国地质调查局伍兹霍尔科学中心的理论地球动力学小组。他们获得的经验和培训将为计划在环境公司或政府机构从事职业的学生提供新的视角,同时指导那些攻读高级学位的学生。一个万维网资源将向学术界、政府和工业界科学家、教育工作者、学生、决策者和广大用户开放海平面数据库、全球影响评估模型、工具、服务、出版物和报告。海平面观测和全球影响评估模型将对国家灾害评估作出重要和独特的贡献。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Torbjorn Tornqvist其他文献
Torbjorn Tornqvist的其他文献
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{{ truncateString('Torbjorn Tornqvist', 18)}}的其他基金
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0519764 - 财政年份:2005
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- 批准号:
0074065 - 财政年份:2001
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Standard Grant
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