Doctoral Dissertation Research: Hydroclimate Reconstructions of the Potomac River Basin Using Tree Rings

博士论文研究:利用树木年轮重建波托马克河流域的水文气候

基本信息

  • 批准号:
    0925114
  • 负责人:
  • 金额:
    $ 1.2万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2009
  • 资助国家:
    美国
  • 起止时间:
    2009-09-01 至 2011-02-28
  • 项目状态:
    已结题

项目摘要

Tree-ring analysis, the science that deals with study of annual tree rings, allows scientists to develop precisely dated records of annually or seasonally resolved data commonly extending 300 or more years into the past. In regions with short records of instrumental data, tree growth can be used as a substitute for streamflow because many of the same factors that affect streams, such as precipitation and runoff, also influence the growth of trees. Unlike the western and central United States, the eastern United States has limited tree-ring records suitable for millennial-length reconstructions of streamflow and climate. A new source of climate history for eastern United States may be derived from isolated stands of old-growth eastern redcedar growing near the headwaters of the Potomac River in West Virginia. Additionally, in the eastern broadleaf forest tens of tree species grow together across a variety of sites, each with a different response to climate, allowing for additional climate information to be extracted. This research will utilize old-growth eastern redcedar and the multitude of broadleaf tree species to learn more about the history of streamflow and climate in the Basin. Current management and modeling strategies in the Potomac River Basin are constrained by the limited length and variability of the instrumental records of streamflow and precipitation. The primary outcomes of the project will be 1) tree-ring reconstructions of the streamflow and precipitation of the Potomac River Basin for the last 1000 years using eastern redcedar tree-ring widths, 2) a multi-species tree-ring reconstruction used to increase the seasonal knowledge of climate for the last 300 years, 3) an evaluation of the instrumental record of streamflow in the context of the past 1000 years of the tree-ring record, and 4) the integration of tree-ring data into water resource modeling efforts in the eastern United States. This Doctoral Dissertation Research will generate one of the few ultra-long (1000 years) tree-ring chronologies for eastern North America. The Potomac River is the primary water resource for the Washington, DC metropolitan area, supplying approximately 75 percent of the water demand. The climate reconstructions will aid water resource managers at the Interstate Commission on the Potomac River Basin plan for future drought events by placing the instrumental records of streamflow and precipitation within the context of natural climatic variability of the past millennium. The tree-ring records of precipitation and streamflow will be integrated into an existing water supply and demand model to assess the ability of the water system to meet demand under past drought conditions. The multi-species approach will aid tree-ring scientists in climate reconstructions in other regions where multiple species are present and will promote the use of existing tree-ring data to investigate water resource management issues in locations with limited instrumental records. As a Doctoral Dissertation Research Improvement award, this award also will provide support to enable a promising student to establish a strong independent research career.
年轮分析是一门研究年轮的科学,它允许科学家开发出精确的年度或季节性解析数据的日期记录,这些数据通常可以追溯到过去300年或更长时间。在仪器数据记录较短的地区,树木生长可作为径流的替代品,因为许多影响河流的相同因素,如降水和径流,也影响树木的生长。与美国西部和中部不同,美国东部的树木年轮记录有限,适合于千年长度的径流和气候重建。美国东部气候历史的一个新来源可能来自于生长在西弗吉尼亚州波托马克河源头附近的孤立的东部红柏。此外,在东部阔叶林中,数十种树种生长在不同的地点,每个树种对气候的反应不同,从而可以提取更多的气候信息。这项研究将利用古老的东部红柏和众多的阔叶树种来更多地了解流域的径流历史和气候。波托马克河流域目前的管理和建模战略受到径流和降水仪器记录的长度和可变性的限制。该项目的主要成果将是1)利用东部红柏树轮宽度重建波托马克河流域过去1000年的径流和降水的树环结构,2)重建用于增加过去300年气候季节性知识的多树种树环结构,3)评估过去1000年树环记录中有关径流的仪器记录,4)将树环数据纳入美国东部的水资源建模工作。这项博士论文研究将产生北美东部为数不多的超长(1000年)年轮年表之一。波托马克河是华盛顿特区大都市区的主要水资源,提供了大约75%的用水需求。气候重建将帮助波托马克河流域州际委员会的水资源管理人员计划未来的干旱事件,方法是将径流和降水的仪器记录放在过去千年自然气候变化的背景下。降水和径流的树轮记录将被纳入现有的水供需模型,以评估水系统在过去干旱条件下满足需求的能力。多物种办法将帮助树轮科学家在存在多种物种的其他区域重建气候,并将促进利用现有的树轮数据来调查仪器记录有限的地点的水资源管理问题。作为博士论文研究改进奖,该奖项还将提供支持,使有前途的学生建立一个强大的独立研究生涯。

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)

数据更新时间:{{ journalArticles.updateTime }}

{{ 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 }}

Amy Hessl其他文献

Comparing the impact of live-tree versus historic-timber data on palaeoenvironmental inferences in tree-ring science, eastern North America
比较活树与历史木材数据对北美东部树木年轮科学古环境推论的影响
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Kristen de Graauw;Maegen L. Rochner;Saskia van de Gevel;Lauren Stachowiak;Savannah A. Collins;Joseph Henderson;Zachary Merrill;Amy Hessl
  • 通讯作者:
    Amy Hessl

Amy Hessl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('Amy Hessl', 18)}}的其他基金

Collaborative Research: P2C2--2000 Years of Variability in the Southern Annular Mode from Tree Rings and Ice
合作研究:P2C2--2000年树木年轮和冰的南环模态变化
  • 批准号:
    1804121
  • 财政年份:
    2019
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
CNH: Pluvials, Droughts, Energetics, and the Mongol Empire
CNH:雨水、干旱、能量和蒙古帝国
  • 批准号:
    1210360
  • 财政年份:
    2012
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Collaborative Research: Fire, Climate, and Forest History in Mongolia
合作研究:蒙古的火灾、气候和森林历史
  • 批准号:
    0815021
  • 财政年份:
    2008
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: An Integrated Spatio-Temporal Approach for Reconstructing, Analyzing, and Representing Paleo-Fire Regimes
博士论文研究:用于重建、分析和表示古火状态的综合时空方法
  • 批准号:
    0508984
  • 财政年份:
    2005
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Collaborative Research: Land Use and Carbon Sequestration in Eastern Deciduous Forests: Interactions Between Human Activities and Ecosystem Processes
合作研究:东部落叶林的土地利用和碳固存:人类活动与生态系统过程之间的相互作用
  • 批准号:
    0414060
  • 财政年份:
    2004
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Continuing Grant

相似海外基金

Doctoral Dissertation Research: How New Legal Doctrine Shapes Human-Environment Relations
博士论文研究:新法律学说如何塑造人类与环境的关系
  • 批准号:
    2315219
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Determinants of social meaning
博士论文研究:社会意义的决定因素
  • 批准号:
    2336572
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Assessing the chewing function of the hyoid bone and the suprahyoid muscles in primates
博士论文研究:评估灵长类动物舌骨和舌骨上肌的咀嚼功能
  • 批准号:
    2337428
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Aspect and Event Cognition in the Acquisition and Processing of a Second Language
博士论文研究:第二语言习得和处理中的方面和事件认知
  • 批准号:
    2337763
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Renewable Energy Transition and Economic Growth
博士论文研究:可再生能源转型与经济增长
  • 批准号:
    2342813
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Do social environments influence the timing of male maturation in a close human relative?
博士论文研究:社会环境是否影响人类近亲的男性成熟时间?
  • 批准号:
    2341354
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research Improvement Grant: Biobanking, Epistemic Infrastructure, and the Lifecycle of Genomic Data
博士论文研究改进补助金:生物样本库、认知基础设施和基因组数据的生命周期
  • 批准号:
    2341622
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Obstetric constraints on neurocranial shape in nonhuman primates
博士论文研究:非人类灵长类动物神经颅骨形状的产科限制
  • 批准号:
    2341137
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Human mobility and infectious disease transmission in the context of market integration
博士论文研究:市场一体化背景下的人员流动与传染病传播
  • 批准号:
    2341234
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Assessing the physiological consequences of diet and environment for gorillas in zoological settings
博士论文研究:评估动物环境中大猩猩饮食和环境的生理后果
  • 批准号:
    2341433
  • 财政年份:
    2024
  • 资助金额:
    $ 1.2万
  • 项目类别:
    Standard Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了