EAR PF: The Stability of Viscous Lavas: Understanding the Driving Processes and Greatest Hazards
EAR PF:粘性熔岩的稳定性:了解驾驶过程和最大危险
基本信息
- 批准号:1725768
- 负责人:
- 金额:$ 17.4万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Fellowship Award
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-11-01 至 2019-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Dr. Brett B. Carr has been granted an NSF EAR Postdoctoral Fellowship to carry out research and education plans at Lamont-Doherty Earth Observatory (LDEO), Columbia University. Silicic effusion eruptions are long-lived and present a persistent hazard to the populations living around them. The primary hazard of these eruptions is the development and collapse of instabilities in the erupted lava that form dangerous block-and-ash pyroclastic flows, plumes, and ash clouds. This investigation will examine instabilities in active silicic lava flows and identify precursors to their collapse. During field campaigns in Sinabung Volcoano, Indonesia, the PI will collect aerial and thermal photography to determine changes in the internal structure of the flow/dome and potential precursors to collapse. The information from the volcano in Indonesia will be compared with data from the domes at Colima, Mexico, and Santiaguito, Guatemala. The results from this investigation will improve hazard assessments and risk mitigation in regions affected by effusive eruptions. The new methods and insights stemming from this project will allow volcano observatories to make more detailed and quantitative assessment of instabilities and to provide more effective warning to communities at risk. The education plan will focus on mentoring of an undergraduate student in research related to the investigation. In addition, Dr. Carr will participate in public outreach and education activities at LDEO.This project addresses the processes controlling the stability of high-viscosity, high-silica lava extruded during an effusive eruption. The investigation will address the following questions: which processes promote or suppress the instability and collapse of viscous lava, and how do these vary over the course of an eruption? what relationships exist between the cause of an instability, the size, and the frequency of the resulting collapse? and how can emerging technologies be utilized to mitigate the risk from lava instability? Dr. Carr will investigate lava instabilities by creating a time-series of topographic change of currently active silicic effusive eruptions and identifying precursors to collapse. The principal investigator will reconstruct or collect digital terrain models (DTMs) of these flows and then analyze them using a numerical slope stability analysis program to quantify the risk of collapses for each time period, and to infer the internal structure of the flow/dome. Dr. Carr will conduct a field campaign at the ongoing eruption of Sinabung Volcano, Indonesia, and utilize an emerging technology - low-cost aerial and thermal photography - to generate a sequence of DTMs of the flows. In addition, the investigator will collaborate with scientists working on domes at Colima, Mexico and Santiaguito, Guatemala, to exchange topographic data of these domes. The result will be shared with staff at volcano observatories to be integrated into monitoring and hazard assessment activities.
布雷特B医生。卡尔已获得NSF博士后奖学金,在哥伦比亚大学拉蒙特-多尔蒂地球观测站(LDEO)开展研究和教育计划。硅质渗出物喷发是长期存在的,并对周围的居民构成持续的危害。这些喷发的主要危险是喷发的熔岩中不稳定性的发展和崩溃,形成危险的块状火山碎屑流、羽状物和灰云。这项调查将研究活跃的火山熔岩流的不稳定性,并确定其崩溃的前兆。在印度尼西亚Sinabung Volcoano的现场活动期间,PI将收集航空和热摄影,以确定流动/圆顶内部结构的变化和潜在的坍塌前兆。来自印度尼西亚火山的信息将与来自墨西哥科利马和危地马拉马奎托圆顶的数据进行比较。这项调查的结果将改善受喷发影响地区的灾害评估和风险缓解。该项目产生的新方法和见解将使火山观测站能够对不稳定性进行更详细和定量的评估,并向面临风险的社区提供更有效的预警。教育计划将侧重于指导一名本科生进行与调查有关的研究。此外,卡尔博士还将参加LDEO的公众宣传和教育活动。该项目涉及控制喷发过程中挤出的高粘度、高硅熔岩稳定性的过程。调查将解决以下问题:哪些过程促进或抑制粘性熔岩的不稳定和崩溃,以及这些在喷发过程中如何变化?不稳定性的原因、规模和导致崩溃的频率之间存在什么关系?如何利用新兴技术来减轻熔岩不稳定的风险?卡尔博士将研究熔岩不稳定性,方法是建立一个目前活跃的火山喷发地形变化的时间序列,并确定崩塌的前兆。首席研究员将重建或收集这些水流的数字地形模型(DTM),然后使用数值边坡稳定性分析程序对其进行分析,以量化每个时间段的崩塌风险,并推断水流/圆顶的内部结构。卡尔博士将在印度尼西亚锡纳朋火山正在喷发的地方进行实地考察,并利用一种新兴技术--低成本航空和热成像--来生成一系列的气流DTM。此外,调查员还将与在墨西哥科利马和危地马拉马奎托从事圆顶研究的科学家合作,交换这些圆顶的地形数据。研究结果将与火山观测站的工作人员分享,以便纳入监测和灾害评估活动。
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)
Volcanic conduit controls on effusive-explosive transitions and the 2010 eruption of Merapi Volcano (Indonesia)
火山管道控制喷发-爆炸转变和 2010 年默拉皮火山喷发(印度尼西亚)
- DOI:10.1016/j.jvolgeores.2019.106767
- 发表时间:2020
- 期刊:
- 影响因子:2.9
- 作者:Carr, Brett B.;Clarke, Amanda B.;de' Michieli Vitturi, Mattia
- 通讯作者:de' Michieli Vitturi, Mattia
{{
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 }}
Brett Carr其他文献
Brett Carr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
基于Klotho/PF4轴探讨养命开心益智方“补肾兼补血”治疗阿尔茨海默病的作用机制
- 批准号:
- 批准年份:2025
- 资助金额:0.0 万元
- 项目类别:省市级项目
线粒体转移诱导的miMOMP调控肺泡上皮细胞命运在PF中的作用与机制研究
- 批准号:2025JJ60598
- 批准年份:2025
- 资助金额:0.0 万元
- 项目类别:省市级项目
负载oe-HGF-ADMSCs的PF127水凝胶对创面无疤痕愈合的效果评估及其机制研究
- 批准号:2025JJ80442
- 批准年份:2025
- 资助金额:0.0 万元
- 项目类别:省市级项目
血小板源性PF4介导疾病相关小胶质细胞活化在阿尔茨海默症发病中的作用及干预研究
- 批准号:2024Y9134
- 批准年份:2024
- 资助金额:15.0 万元
- 项目类别:省市级项目
PF-4作为间充质干细胞关键物质靶向抑制神经细胞SLC14A1改善脑
衰老的机制研究
- 批准号:
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
基于毒蛇咬伤人群队列探究 PF4 和 TM 对溃疡坏死预警与预
后价值的研究
- 批准号:2024JJ9407
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
PF4 抑制肠道病毒 EVD68 复制的作用机制研
究
- 批准号:Q24C010006
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
基于PF-06882961分子骨架的不同空间构型与生物活性关系研究
- 批准号:CSTB2023NSCQ-MSX1091
- 批准年份:2023
- 资助金额:10.0 万元
- 项目类别:省市级项目
成人免疫性血小板减少症(ITP)中血小板因子4(PF4)通过调节CD4+T淋巴细胞糖酵解水平影响Th17/Treg平衡的病理机制研究
- 批准号:82370133
- 批准年份:2023
- 资助金额:49 万元
- 项目类别:面上项目
活性吲哚生物碱(-)-citrinadin A-B和(+)-PF1270 A-C的集群式不对称全合成研究
- 批准号:22371100
- 批准年份:2023
- 资助金额:50.00 万元
- 项目类别:面上项目
相似海外基金
Postdoctoral Fellowship: EAR-PF: Assessing the net climate impact of tropical peatland restoration: the role of methane
博士后奖学金:EAR-PF:评估热带泥炭地恢复对气候的净影响:甲烷的作用
- 批准号:
2305578 - 财政年份:2024
- 资助金额:
$ 17.4万 - 项目类别:
Fellowship Award
Postdoctoral Fellowship: EAR-PF: Taxon-Specific Cross-Scale Responses to Aridity Gradients through Time and across Space in the NW Great Basin of the United States
博士后奖学金:EAR-PF:美国西北部大盆地随时间和空间的干旱梯度的分类单元特异性跨尺度响应
- 批准号:
2305325 - 财政年份:2024
- 资助金额:
$ 17.4万 - 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:
$ 17.4万 - 项目类别:
Fellowship Award
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:
$ 17.4万 - 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:
$ 17.4万 - 项目类别:
Fellowship Award
Career: The Complexity pf Quantum Tasks
职业:量子任务的复杂性
- 批准号:
2339711 - 财政年份:2024
- 资助金额:
$ 17.4万 - 项目类别:
Continuing Grant
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:
$ 17.4万 - 项目类别:
Fellowship Award
PF-ILDのフラクタル解析とCNN学習モデルを用いた画像診断研究
基于PF-ILD分形分析和CNN学习模型的图像诊断研究
- 批准号:
24K10916 - 财政年份:2024
- 资助金额:
$ 17.4万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Postdoctoral Fellowship: EAR-PF: Understanding the Mechanics of Caldera Collapse Eruptions
博士后奖学金:EAR-PF:了解火山口塌陷喷发的机制
- 批准号:
2305163 - 财政年份:2024
- 资助金额:
$ 17.4万 - 项目类别:
Fellowship Award
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
- 批准号:
2305463 - 财政年份:2024
- 资助金额:
$ 17.4万 - 项目类别:
Fellowship Award