Postdoctoral Fellowship: EAR-PF: Linking the past to the future: Using PETM fluvial records to understand the effects of climate change on rivers

博士后奖学金:EAR-PF:连接过去与未来:利用 PETM 河流记录了解气候变化对河流的影响

基本信息

  • 批准号:
    2305463
  • 负责人:
  • 金额:
    $ 18万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Fellowship Award
  • 财政年份:
    2024
  • 资助国家:
    美国
  • 起止时间:
    2024-06-01 至 2026-05-31
  • 项目状态:
    未结题

项目摘要

Dr. Bolton Howes has been awarded an NSF Earth Sciences Postdoctoral Fellowship to carry out research and professional development activities under the mentorship of Dr. Akshay Mehra at the University of Washington and Dr. Brady Foreman at Western Washington University. From providing irrigation and nourishment for agriculture to acting as transport routes that connect inland areas to the coasts, rivers and floodplains are critical to the functioning of humanity and our planet. Rivers and floodplains also are highly sensitive to changes in climate, vegetation cover, and land use. Since rivers can pose risks to cities, agriculture, and infrastructure through flooding and the movement of channels, it is crucial to understand how river systems will respond to ongoing climate change. For clues about the future of rivers, geologists can turn to the sedimentary record. The Paleocene-Eocene Thermal Maximum (PETM) represents a significant period of rapid warming in our planet's past, analogous to the current climatic changes. Scientists know that the environmental changes triggered by the PETM affected sediment patterns and river behavior. For instance, research indicates an increase in channel movement at several locations during the PETM. Increased mobility in modern rivers could lead to infrastructure damage, alterations in water availability, and shifts in navigational routes. This project has two objectives: (1) to determine if the increased channel movement during the PETM was specific to certain basins or a widespread phenomenon, and (2) to use historical data from satellites and surveys to ascertain if anthropogenic climate change has led to increased migration rates of modern rivers. The findings of this project will provide valuable insights into how humanity can better prepare for anticipated changes in river systems over the coming century. This project will also culminate in the development and dissemination of open-source software for 3D modeling. Undergraduate students will be active contributors to the research, learning skills in field geology and quantitative methods for the geosciences. Finally, the project will foster public engagement through lectures at museums within the field area.This project employs a two-pronged approach to explore the impacts of climate change on the behavior of fluvial landscapes. First, the project will utilize traditional stratigraphic techniques in conjunction with drone-derived digital elevation models and photo-orthomosaics to measure the morphology and size of fluvial sandstones before, during and after the PETM in the Piceance, Hanna, and Bighorn Basins. Three-dimensional models, created from drone imagery, will facilitate more accurate measurements of ancient rivers geometry and improve the estimation of uncertainty and lateral variability. These measurements will enable the project to accurately characterize the changing fluvial dynamics induced by the heightened temperatures and increased seasonality during the PETM. Secondly, the project will employ historical records of modern rivers, sourced from satellite imagery, maps, and surveys, to ascertain if anthropogenic climate change and alterations in land use have influenced modern river behavior. This analysis of modern rivers will determine if modern rivers have already adjusted to the changing climate, or if (and how much) infrastructure plans need to accommodate future change in fluvial landscape behavior.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
Bolton Howes 博士获得了 NSF 地球科学博士后奖学金,在华盛顿大学 Akshay Mehra 博士和西华盛顿大学 Brady Foreman 博士的指导下开展研究和专业发展活动。从为农业提供灌溉和营养,到充当连接内陆地区与海岸的运输路线,河流和洪泛区对于人类和地球的运转至关重要。河流和洪泛区对气候、植被覆盖和土地利用的变化也高度敏感。由于河流可能通过洪水和河道移动对城市、农业和基础设施构成风险,因此了解河流系统如何应对持续的气候变化至关重要。要获得有关河流未来的线索,地质学家可以求助于沉积记录。古新世-始新世最热期(PETM)代表了地球过去快速变暖的一个重要时期,类似于当前的气候变化。科学家们知道,PETM 引发的环境变化影响了沉积物模式和河流行为。例如,研究表明,PETM 期间多个地点的河道运动有所增加。现代河流流动性的增加可能会导致基础设施损坏、水资源供应的改变以及航行路线的改变。该项目有两个目标:(1) 确定 PETM 期间河道移动的增加是否是某些流域特有的现象还是一种普遍现象,(2) 使用卫星和调查的历史数据来确定人为气候变化是否导致了现代河流的迁移率增加。该项目的研究结果将为人类如何更好地为下个世纪河流系统的预期变化做好准备提供宝贵的见解。该项目还将最终开发和传播 3D 建模开源软件。本科生将成为研究、学习野外地质学技能和地球科学定量方法的积极贡献者。最后,该项目将通过在现场区域内的博物馆举办讲座来促进公众参与。该项目采用双管齐下的方法来探索气候变化对河流景观行为的影响。首先,该项目将利用传统地层学技术,结合无人机数字高程模型和正射影像,测量皮斯恩斯、汉纳和比格霍恩盆地 PETM 之前、期间和之后河流砂岩的形态和大小。根据无人机图像创建的三维模型将有助于更准确地测量古代河流的几何形状,并改进对不确定性和横向变化的估计。这些测量将使该项目能够准确地描述 PETM 期间气温升高和季节性增加引起的河流动态变化。其次,该项目将利用来自卫星图像、地图和调查的现代河流的历史记录,以确定人为气候变化和土地利用的变化是否影响了现代河流的行为。对现代河流的分析将确定现代河流是否已经适应了不断变化的气候,或者基础设施计划是否(以及多少)需要适应未来河流景观行为的变化。该奖项反映了 NSF 的法定使命,并被认为值得支持通过使用基金会的智力优点和更广泛的影响审查标准进行评估。

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 }}

Bolton Howes其他文献

The where, when, and how of ooid formation: What ooids tell us about ancient seawater chemistry
鲕粒形成的地点、时间和方式:鲕粒告诉我们有关古代海水化学的信息
  • DOI:
    10.1016/j.epsl.2024.118697
  • 发表时间:
    2024-07-01
  • 期刊:
  • 影响因子:
    5.3
  • 作者:
    Bolton Howes;Akshay Mehra;Emily C. Geyman;J. Wilcots;Ryan Manzuk;C. Deutsch;Adam Maloof
  • 通讯作者:
    Adam Maloof
A Novel Technique for Producing Three-Dimensional Data Using Serial Sectioning and Semi-Automatic Image Classification
使用串行切片和半自动图像分类生成三维数据的新技术
  • DOI:
    10.1017/s1431927622012442
  • 发表时间:
    2022-10-21
  • 期刊:
  • 影响因子:
    2.8
  • 作者:
    Akshay Mehra;Bolton Howes;Ryan Manzuk;A. Spatzier;Bradley M. Samuels;A. Maloof
  • 通讯作者:
    A. Maloof
Three‐Dimensional Morphometry of Ooids in Oolites: A New Tool for More Accurate and Precise Paleoenvironmental Interpretation
鲕岩中鲕粒的三维形态测量:更准确和精确古环境解释的新工具
Sedimentary porewaters record regional tectonic and climate events that perturbed a deep-sea brine pool in the Gulf of Aqaba, Red Sea.
沉积孔隙水记录了扰动红海亚喀巴湾深海盐水池的区域构造和气候事件。
  • DOI:
    10.1016/j.scitotenv.2023.168804
  • 发表时间:
    2023-11-28
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Gaëlle Duchâtellier;A. Oehlert;Hannah Shernisky;C. G. L. Pollier;Peter K. Swart;Bolton Howes;Sam J. Purkis
  • 通讯作者:
    Sam J. Purkis

Bolton Howes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 }}

相似国自然基金

相似海外基金

Postdoctoral Fellowship: EAR-PF: Petrochronometers as provenance proxies: implications for the spatio-temporal evolution of continental collision to escape
博士后奖学金:EAR-PF:石油测时计作为起源代理:对大陆碰撞逃逸的时空演化的影响
  • 批准号:
    2305217
  • 财政年份:
    2024
  • 资助金额:
    $ 18万
  • 项目类别:
    Fellowship Award
Postdoctoral Fellowship: EAR-PF: Feedbacks Between Controls of Stream Dry-Down Responses at the Rain-Snow Transition
博士后奖学金:EAR-PF:雨雪转变时河流干涸响应控制之间的反馈
  • 批准号:
    2305601
  • 财政年份:
    2024
  • 资助金额:
    $ 18万
  • 项目类别:
    Fellowship Award
Postdoctoral Fellowship: EAR-PF: Does topographic stress connect subsurface to surface through influencing bedrock strength, clast size, and landslides?
博士后奖学金:EAR-PF:地形应力是否通过影响基岩强度、碎屑尺寸和山体滑坡将地下与地表连接起来?
  • 批准号:
    2305448
  • 财政年份:
    2024
  • 资助金额:
    $ 18万
  • 项目类别:
    Fellowship Award
Postdoctoral Fellowship: EAR-PF: Establishing a new eruption classification with a multimethod approach
博士后奖学金:EAR-PF:用多种方法建立新的喷发分类
  • 批准号:
    2305462
  • 财政年份:
    2024
  • 资助金额:
    $ 18万
  • 项目类别:
    Fellowship Award
Postdoctoral Fellowship: EAR-PF: Linking soil nitrogen enrichment to mineral weathering and associated organic matter persistence
博士后奖学金:EAR-PF:将土壤氮富集与矿物风化和相关有机物持久性联系起来
  • 批准号:
    2305518
  • 财政年份:
    2024
  • 资助金额:
    $ 18万
  • 项目类别:
    Fellowship Award
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了