Support for the Cascadia Initiative Expedition Team

支持卡斯卡迪亚倡议探险队

基本信息

批准号：
1139701
负责人：
Douglas Toomey
金额：
$ 46.72万
依托单位：
University of Oregon Eugene
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2011
资助国家：
美国
起止时间：
2011-09-01 至 2016-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1139701&HistoricalAwards=false
关键词：
Support Cascadia Initiative Expedition Team

项目摘要

The vital importance of gaining a better understanding of seismic (earthquake) and volcanic hazards and risks related to the process of subduction was dramatically underscored by the recent megathrust earthquake in Japan, and its catastrophic consequences. A heavily populated region of North America that is subject to similarly conditions is Cascadia, which extends from southern British Columbia to northernmost California. The Cascadia Initiative (CI) is an onshore/offshore seismic and geodetic experiment that will deploy an array of seismometers on the seafloor to complement an array of stations onshore, with the aim of addressing questions ranging from megathrust earthquakes to volcanic arc structure to the formation, deformation and hydration of the Juan de Fuca and Gorda plates. These diverse targets are components of the overall subduction zone system and require an array of seismometers crosses the shoreline and encompasses relevant plate boundaries. The experimental design and objectives, specified at meeting held in Portland, Oregon in 2010, are described in the NSF Cascadia Initiative Workshop Report, which spells out the scientific objectives of the CI, the resources involved and the community-defined OBS deployment plan. This award will support a team of scientists tocaary out and oversee the first year of CI OBS deployments (summer 2011), the planning and operational efforts of the Cascadia Initiative Expedition Team (CIET) and the initial Education and Outreach (E&O) effort. The chief broader impact of the Cascadia Initiative is its very high societal relevance. Achieving a better understanding of seismicity and volcanism in regions such as Cascadia is key to mitigating risks and planning for the potentially devastating effects of volcanic eruptions and great earthquakes. This proposal includes important outreach and education activities as well. The CIET Education and Outreach program will develop two opportunities during the first year. First, the 'CC@sea' project will support community college ('CC') student participation in OBS deployment, retrieval and pre-cruise and follow-up outreach activities in CCs, high schools and the community. The second Cascadia Initiative E&O program develops activities in high school classrooms in Oregon (initially), Washington and northern California.

日本最近发生的特大逆冲地震及其灾难性后果极大地凸显了更好地了解与俯冲过程相关的地震和火山灾害和风险的至关重要性。北美人口稠密的卡斯卡迪亚地区也面临着类似的情况，该地区从不列颠哥伦比亚省南部延伸到加利福尼亚州最北端。卡斯卡迪亚倡议（CI）是一项陆上/近海地震和大地测量实验，将在海底部署一系列地震仪，以补充一系列陆上台站，旨在解决从特大逆冲地震到火山弧结构再到地层等一系列问题。、胡安德富卡板块和戈尔达板块的变形和水化。这些不同的目标是整个俯冲带系统的组成部分，需要一系列跨越海岸线并包含相关板块边界的地震仪。 2010 年在俄勒冈州波特兰举行的会议上指定的实验设计和目标在 NSF 卡斯卡迪亚倡议研讨会报告中进行了描述，其中详细说明了 CI 的科学目标、所涉及的资源以及社区定义的 OBS 部署计划。该奖项将支持一个科学家团队开展并监督 CI OBS 部署的第一年（2011 年夏季）、卡斯卡迪亚倡议探险队 (CIET) 的规划和运营工作以及最初的教育和外展 (E&O) 工作。卡斯卡迪亚倡议最广泛的影响是其极高的社会相关性。更好地了解卡斯卡迪亚等地区的地震活动和火山活动是降低风险和规划火山爆发和大地震潜在破坏性影响的关键。该提案还包括重要的外展和教育活动。 CIET 教育和外展计划将在第一年提供两个机会。首先，“CC@sea”项目将支持社区学院（“CC”）学生参与 OBS 部署、检索以及 CC、高中和社区的预巡航和后续外展活动。第二个卡斯卡迪亚倡议 E&O 计划在俄勒冈州（最初）、华盛顿州和北加州的高中教室开展活动。

项目成果

期刊论文数量（2）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Mantle dynamics beneath the discrete and diffuse plate boundaries of the Juan de Fuca plate: Results from Cascadia Initiative body wave tomography: TOMOGRAPHIC IMAGING WITH CASCADIA INITIATIVE DATA

胡安德富卡板块离散和扩散板块边界下方的地幔动力学：卡斯卡迪亚倡议体波断层扫描的结果：使用卡斯卡迪亚倡议数据进行断层成像

DOI：
10.1002/2017gc006980
发表时间：
2017-08
期刊：
Geosystems
影响因子：
0
作者：
Byrnes, Joseph S.;Toomey, Douglas R.;Hooft, Emilie E.;Nábělek, John;Braunmiller, Jochen
通讯作者：
Braunmiller, Jochen

Seismic anisotropy beneath the Juan de Fuca plate system: Evidence for heterogeneous mantle flow

胡安德富卡板块系统下方的地震各向异性：非均质地幔流的证据