Collaborative Research: Initiation, Propagation, and Termination: Understanding coupled hydrologic and glacier dynamic instabilities from the surge of Turner Glacier
合作研究:启动、传播和终止:了解特纳冰川涌动造成的耦合水文和冰川动态不稳定性
基本信息
- 批准号:1954006
- 负责人:
- 金额:$ 52.96万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-08-15 至 2024-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Glaciers and ice sheets are rapidly shrinking, with implications for local water resources, biogeochemical properties of streams, rivers, fjords, and oceans, and global sea level rise. As air temperatures warm, melting water from glaciers can be transported to the base of the glaciers where the ice meets the bedrock below. The addition of this water has caused dramatic acceleration of ice flow for some glaciers, small flow changes in others, and even deceleration for other glaciers. Changes in ice flow can be dramatic and unstable, leading to rapid glacier loss that cannot be predicted using current ice flow models. This project aims to better understand the links between glacier hydrology and ice flow by studying an event called a glacier surge during which the ice flow increases dramatically for a period of a few years. The project will conduct an integrated field, remote sensing, and modeling study of a glacier surge at Turner Glacier in Southeast Alaska. The scientific insights gained here will have broad applicability across glacier and ice sheet conditions in many parts of the Arctic and Antarctic, reducing uncertainties in predictions of global glacier loss in the coming decades. The project will strengthen the glacier research programs at Idaho’s two largest universities through interdisciplinary inclusive research, outreach, and community building. The project will collect in-situ seismic, radar, geodetic, meteorological, and time-lapse imagery of hydrologic and glacier dynamics instabilities occurring throughout the upcoming surge of Turner Glacier. The team will combine in-situ observations with satellite-derived glacier velocity, elevation, terminus position, and subglacial plume data to map meltwater routing beneath the glacier during the initiation, propagation, and termination of the surge. These data will be paired with a state-of-the-art hydrologic numerical modeling to investigate the evolution of the controls on the hydrologic and dynamic glacier instabilities throughout the full surge. The unprecedented dataset, coupled with modern models, will yield improved, process-based understanding of a fundamental, 50-plus year-old, first-order question in glaciology: What controls the initiation, propagation, and termination of glacier surges? Given that the interplay between glacier hydrology, basal processes, and glacier flow remains one of the most fundamental questions in glaciology, the results of this project have broad societal impacts. Any insights into rapid instabilities in glacier flow triggered by climate will considerably advance our predictive capabilities of glacier change, and our ability to understand the impacts of ice mass loss on the Earth system.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.
冰川和冰盖正在迅速缩小,对当地水资源、溪流、河流、峡湾和海洋的地球化学性质以及全球海平面上升都有影响。随着气温变暖,冰川融化的水可以被输送到冰川底部,在那里冰与下面的基岩相遇。这些水的加入导致一些冰川的冰流急剧加速,另一些冰川的冰流变化很小,甚至其他冰川的冰流减速。冰流的变化可能是戏剧性的和不稳定的,导致冰川的快速损失,无法使用目前的冰流模型预测。该项目旨在通过研究一种称为冰川激增的事件,更好地了解冰川水文学和冰流之间的联系,在这种事件中,冰流在几年内急剧增加。该项目将对阿拉斯加东南部特纳冰川的冰川激增进行综合实地、遥感和建模研究。在这里获得的科学见解将广泛适用于北极和南极许多地区的冰川和冰盖条件,减少未来几十年全球冰川损失预测的不确定性。该项目将通过跨学科的包容性研究、外展和社区建设,加强爱达荷州两所最大大学的冰川研究项目。该项目将收集现场地震,雷达,大地测量,气象和时间推移的水文和冰川动力学不稳定性发生在整个即将到来的特纳冰川激增的图像。该小组将结合联合收割机现场观测与卫星派生的冰川速度,海拔,终点位置和冰下羽流数据,以绘制冰川下的融水路线在启动,传播和终止的激增。这些数据将与最先进的水文数值模拟相结合,以研究整个涌浪期间水文和动态冰川不稳定性控制的演变。前所未有的数据集,加上现代模型,将产生改进的,基于过程的理解一个基本的,50多年的,在冰川学的一阶问题:是什么控制着冰川潮的开始,传播和终止?鉴于冰川水文学、基底过程和冰川流动之间的相互作用仍然是冰川学中最基本的问题之一,该项目的结果具有广泛的社会影响。对气候引发的冰川流动快速不稳定性的任何见解将大大提高我们对冰川变化的预测能力,以及我们了解冰质量损失对地球系统影响的能力。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Kinematics of the exceptionally-short surge cycles of Sít’ Kusá (Turner Glacier), Alaska, from 1983 to 2013
1983 年至 2013 年阿拉斯加萨塔库萨(特纳冰川)异常短的涌动周期的运动学
- DOI:10.1017/jog.2021.29
- 发表时间:2021
- 期刊:
- 影响因子:3.4
- 作者:Nolan, Andrew;Kochtitzky, William;Enderlin, Ellyn M.;McNabb, Robert;Kreutz, Karl J.
- 通讯作者:Kreutz, Karl J.
{{
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 }}
Ellyn Enderlin其他文献
A Frontal Ablation Dataset for 49 Tidewater Glaciers in Greenland
格陵兰岛 49 条入海口冰川的锋面消融数据集
- DOI:
10.1038/s41597-025-04948-3 - 发表时间:
2025-04-10 - 期刊:
- 影响因子:6.900
- 作者:
Dominik Fahrner;Donald A. Slater;Aman KC;Claudia Cenedese;David A. Sutherland;Ellyn Enderlin;M. Femke de Jong;Kristian K. Kjeldsen;Michael Wood;Peter Nienow;Sophie Nowicki;Till J. W. Wagner - 通讯作者:
Till J. W. Wagner
Ellyn Enderlin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('Ellyn Enderlin', 18)}}的其他基金
Collaborative Research: Improving estimates of Greenland’s freshwater flux: Where do icebergs form and where do they melt?
合作研究:改进对格陵兰岛淡水通量的估计:冰山在哪里形成以及在哪里融化?
- 批准号:
2052561 - 财政年份:2021
- 资助金额:
$ 52.96万 - 项目类别:
Standard Grant
Antarctic Submarine Melt Variability from Remote Sensing of Icebergs
冰山遥感的南极海底融化变化
- 批准号:
1933764 - 财政年份:2019
- 资助金额:
$ 52.96万 - 项目类别:
Continuing Grant
Collaborative Research: What Controls Calving? A Greenland-wide Test of Terminus Change Mechanisms
合作研究:什么控制产犊?
- 批准号:
1933105 - 财政年份:2019
- 资助金额:
$ 52.96万 - 项目类别:
Standard Grant
Collaborative Research: What Controls Calving? A Greenland-wide Test of Terminus Change Mechanisms
合作研究:什么控制产犊?
- 批准号:
1714639 - 财政年份:2017
- 资助金额:
$ 52.96万 - 项目类别:
Standard Grant
Antarctic Submarine Melt Variability from Remote Sensing of Icebergs
冰山遥感的南极海底融化变化
- 批准号:
1643455 - 财政年份:2017
- 资助金额:
$ 52.96万 - 项目类别:
Continuing Grant
Quantifying Greenland Iceberg Melt Rates using Remotely-sensed Data
使用遥感数据量化格陵兰冰山融化速率
- 批准号:
1417480 - 财政年份:2014
- 资助金额:
$ 52.96万 - 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
Collaborative Research: Maritime to Inland Transitions Towards ENvironments for Convection Initiation (MITTEN CI)
合作研究:海洋到内陆向对流引发环境的转变(MITTEN CI)
- 批准号:
2349935 - 财政年份:2024
- 资助金额:
$ 52.96万 - 项目类别:
Continuing Grant
Collaborative Research: Maritime to Inland Transitions Towards ENvironments for Convection Initiation (MITTEN CI)
合作研究:海洋到内陆向对流引发环境的转变(MITTEN CI)
- 批准号:
2349934 - 财政年份:2024
- 资助金额:
$ 52.96万 - 项目类别:
Continuing Grant
Collaborative Research: Maritime to Inland Transitions Towards ENvironments for Convection Initiation (MITTEN CI)
合作研究:海洋到内陆向对流引发环境的转变(MITTEN CI)
- 批准号:
2349936 - 财政年份:2024
- 资助金额:
$ 52.96万 - 项目类别:
Continuing Grant
Collaborative Research: Maritime to Inland Transitions Towards ENvironments for Convection Initiation (MITTEN CI)
合作研究:海洋到内陆向对流引发环境的转变(MITTEN CI)
- 批准号:
2349937 - 财政年份:2024
- 资助金额:
$ 52.96万 - 项目类别:
Continuing Grant
Collaborative Research: Geophysical Study of Ongoing Subduction Initiation Along the Matthew-Hunter Trench
合作研究:沿马修-亨特海沟持续俯冲起始的地球物理研究
- 批准号:
2228413 - 财政年份:2023
- 资助金额:
$ 52.96万 - 项目类别:
Continuing Grant
Collaborative Research: Research Initiation: Factors Affecting Latina Engineering Student Decisions to Enter Graduate School or Engineering Career Pathways
合作研究:研究启动:影响拉丁裔工程学生决定进入研究生院或工程职业道路的因素
- 批准号:
2306262 - 财政年份:2023
- 资助金额:
$ 52.96万 - 项目类别:
Standard Grant
Collaborative Research: Geophysical Study of Ongoing Subduction Initiation Along the Matthew-Hunter Trench
合作研究:沿马修-亨特海沟持续俯冲起始的地球物理研究
- 批准号:
2228414 - 财政年份:2023
- 资助金额:
$ 52.96万 - 项目类别:
Continuing Grant
Collaborative Research: Research Initiation: Contextualizing Engineering Science Courses by Teaching History and Judgement
合作研究:研究启动:通过教授历史和判断将工程科学课程情境化
- 批准号:
2306052 - 财政年份:2023
- 资助金额:
$ 52.96万 - 项目类别:
Standard Grant
Collaborative Research: Research Initiation: Formation of the Foundations for Engineering Intuition in Structural Engineering with Mixed Reality
合作研究:研究启动:混合现实结构工程中工程直觉基础的形成
- 批准号:
2306230 - 财政年份:2023
- 资助金额:
$ 52.96万 - 项目类别:
Standard Grant
Collaborative Research: Research Initiation: Engineering students' outcome expectations for AI careers: An exploratory study
合作研究:研究启动:工科学生对人工智能职业的成果期望:一项探索性研究
- 批准号:
2403968 - 财政年份:2023
- 资助金额:
$ 52.96万 - 项目类别:
Standard Grant