Collaborative Research: Acquisition of GPS and seismic equipment for Phase 2 of a Plate Boundary Observatory, Nicoya Peninsula, Costa Rica

合作研究:为哥斯达黎加尼科亚半岛板块边界观测站第二阶段采购 GPS 和地震设备

基本信息

  • 批准号:
    1140261
  • 负责人:
  • 金额:
    $ 3.09万
  • 依托单位:
  • 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:
    2011-06-01 至 2013-04-30
  • 项目状态:
    已结题

项目摘要

This grant supports a collaborative effort between the University of Miami ? RSMAS (PI: Tim Dixon), the University of California Santa Cruz (PI: Susan Schwartz), UNAVCO and Costa Rican colleague Dr. Marino Protti at OVSICORI to acquire and deploy GPS and seismic equipment on the Nicoya Peninsula, Costa Rica. Observation from this network will directly feed into research efforts supported by the Margins Program (OCE-0841091/Miami-RSMAS/Dixon and OCE-0841091/UCSC/Schwartz). This grant will facilitate an augmentation and upgrade to a current but smaller network of GPS and seismic instrumentation on the Nicoya Peninsula, Costa Rica (funded through EAR- 0502221). The end result will be extended and better constrained geophysical observations in time and space beyond that now being acquired.This support will add an additional seven GPS sites and upgrade five of the older existing thirteen GPS sites to PBO standards as well as allow for the purchase and installation of four Guralp CMG3 broadband seismic sensors and associated data loggers to replace equipment in the current Nicoya seismic network that are currently on loan. Data from the network will continue to flow to the UNAVCO and IRIS publicly accessible data archives. The existing Nicoya seismogeodetic network has recorded initial evidence of aseismic slip of the downgoing slab and associated nonvolcanic tremor in May 2007. This expansion of the Nicoya GPS and seismic network will better constrain the time varying strain field and seismic activity. Similar albeit higher resolution space-time observations of subduction zone dynamics within the Cascadia and SW Japan subduction zones have radically changed and challenged our understanding of plate tectonic processes at subduction zones with implications for better understanding seismic hazards. This expansion of the Nicoya Plate Boundary Observatory (PBO) will allow for study of a class of subduction zone with different properties from those of the Cascadia and Japan trenches, perhaps most importantly, temperature/age of the downgoing slab. The Nicoya Peninsula is unique in that it is perched almost directly over the locked part of the plate boundary. As a result, the proposed geophysical observatory will enable high signal/noise (S/N) ratio observations of plate boundary processes. Questions to be addressed by the data collected by these instruments include: 1) What is the relationship between slow slip, nonvolcanic tremor, strain accumulation and interplate earthquakes. 2) What is the role of temperature and fluids in tremor and slip generation? 3) Is the occurrence of fast and slow slip tremor spatially and/or temporally separated? The answers to these questions have important implications for understanding the seismic process at subduction zones.Broader impacts will include international cooperation and technology transfer, graduate student training with state-of-the-art seismic and geodetic instrumentation and techniques, and improved understanding of earthquake hazards in the region.
这笔赠款支持迈阿密大学和迈阿密大学之间的合作努力。RSMAS(PI:Tim狄克逊)、加州圣克鲁斯大学(主要负责人:Susan Schwartz)、联合国志愿人员组织和哥斯达黎加同事Marino Protti博士在OVSICORI获得并在哥斯达黎加的尼科亚半岛部署全球定位系统和地震设备。 该网络的观测结果将直接反馈给边缘计划(OCE-0841091/Miami-RSMAS/狄克逊和OCE-0841091/UCSC/施瓦茨)支持的研究工作。 这笔赠款将有助于扩大和升级哥斯达黎加尼科亚半岛现有的但规模较小的全球定位系统和地震仪器网络(通过IAN- 0502221供资)。 这一支助将增加另外7个全球定位系统站点,并将现有13个较老的全球定位系统站点中的5个升级到PBO标准,并允许购买和安装4个Guralp CMG 3宽带地震传感器和相关数据记录仪,以取代目前尼科西亚地震网络中的设备,目前租借。 该网络的数据将继续流入联安核查团和综合登记信息系统的可供公众查阅的数据档案。 现有的尼科亚地震大地测量网络记录了2007年5月下行板块和相关的非火山震颤的地震滑动的初步证据。 尼科亚全球定位系统和地震网络的这种扩展将更好地限制随时间变化的应变场和地震活动。 卡斯卡迪亚和日本西南部俯冲带内俯冲带动力学的类似但更高分辨率的时空观测从根本上改变了我们对俯冲带板块构造过程的理解,并对我们更好地理解地震灾害提出了挑战。 尼科亚板块边界天文台(PBO)的这一扩展将允许研究一类具有与卡斯卡迪亚和日本海沟不同性质的俯冲带,也许最重要的是,下行板的温度/年龄。 尼科亚半岛的独特之处在于它几乎直接位于板块边界的锁定部分。 因此,拟议的地球物理观测站将能够对板块边界过程进行高信噪比观测。 这些仪器所收集到的数据所要解决的问题包括:1)慢滑动、非火山地震、应变积累和板间地震之间的关系。2)温度和流体在震颤和滑动产生中的作用是什么?3)快滑和慢滑震颤的发生是否在空间和/或时间上分开?这些问题的答案对了解俯冲带的地震过程具有重要意义,更广泛的影响将包括国际合作和技术转让,研究生培训,掌握最先进的地震和大地测量仪器和技术,以及提高对该区域地震灾害的认识。

项目成果

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会议论文数量(0)
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Timothy Dixon其他文献

Characterization of the pH-Dependent Disintegration of Chemically Modified Alginate Hydrogels
  • DOI:
    10.1007/s40883-024-00378-6
  • 发表时间:
    2025-01-06
  • 期刊:
  • 影响因子:
    1.900
  • 作者:
    John Morningstar;Abdelrahman Alwan;Timothy Dixon;Emmanuel C. Opara;Mark E. Welker
  • 通讯作者:
    Mark E. Welker
Critical Success Factors in Urban"Brownfield Regeneration"
城市“棕地更新”的关键成功因素
  • DOI:
  • 发表时间:
    2010
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Timothy Dixon;Noriko Otsuka;Hirokazu Abe
  • 通讯作者:
    Hirokazu Abe
Giant Left Ventricular Thrombus Formation in the Setting of Severe Aortic Stenosis and Heavy Cigarette Smoking
严重主动脉瓣狭窄和大量吸烟时左心室巨大血栓形成
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    M. Elmassry;Rubayat Rahman;Timothy Dixon;Brandon Rogers;N. Nair
  • 通讯作者:
    N. Nair
Present Situationand Local Characteristics of Previously Developed land in Japan
日本旧开发土地现状及地域特征
  • DOI:
  • 发表时间:
    2010
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Timothy Dixon;Noriko Otsuka;Hirokazu Abe;Tomoko Miyagawa
  • 通讯作者:
    Tomoko Miyagawa

Timothy Dixon的其他文献

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{{ truncateString('Timothy Dixon', 18)}}的其他基金

Collaborative Research: Improved Understanding of Subduction Zone Tsunami Genesis Using Sea Floor Geodesy Offshore Central America
合作研究:利用中美洲近海海底大地测量学提高对俯冲带海啸成因的了解
  • 批准号:
    2314270
  • 财政年份:
    2024
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Continuing Grant
Collaborative Research: Continental Shelf Geodesy: Continued Development of a Low Cost Sea Floor Geodetic System Based on GPS
合作研究:大陆架大地测量:持续开发基于 GPS 的低成本海底大地测量系统
  • 批准号:
    2023633
  • 财政年份:
    2020
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Continuing Grant
Geodetic Observations in the Northern Costa Rica Subduction Zone
哥斯达黎加北部俯冲带的大地测量观测
  • 批准号:
    1835947
  • 财政年份:
    2019
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Standard Grant
Measuring Sea Floor Motion: New Technology for Continental Margin Geodesy
测量海底运动:大陆边缘大地测量新技术
  • 批准号:
    1538179
  • 财政年份:
    2015
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Standard Grant
Collaborative Research: RAPID: Nevado del Ruiz Volcano, Colombia: Enhancing Geodetic Observations and Digital Elevation Models in Response to Recent Activity
合作研究:RAPID:哥伦比亚内瓦多德尔鲁伊斯火山:增强大地测量观测和数字高程模型以应对近期活动
  • 批准号:
    1546924
  • 财政年份:
    2015
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Standard Grant
Geodetic observations at the early stage of subduction zone seismic cycle: towards complete seismic cycle coverage
俯冲带地震周期早期大地测量观测:走向完整的地震周期覆盖
  • 批准号:
    1345100
  • 财政年份:
    2014
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Continuing Grant
Collaborative Research: A Plate Boundary Observatory on the Nicoya Peninsula, Costa Rica
合作研究:哥斯达黎加尼科亚半岛的板块边界观测站
  • 批准号:
    1158167
  • 财政年份:
    2011
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Standard Grant
Collaborative Research: Acquisition of GPS and seismic equipment for Phase 2 of a Plate Boundary Observatory, Nicoya Peninsula, Costa Rica
合作研究:为哥斯达黎加尼科亚半岛板块边界观测站第二阶段采购 GPS 和地震设备
  • 批准号:
    0842137
  • 财政年份:
    2009
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Standard Grant
Collaborative Research: A Plate Boundary Observatory on the Nicoya Peninsula, Costa Rica
合作研究:哥斯达黎加尼科亚半岛的板块边界观测站
  • 批准号:
    0841091
  • 财政年份:
    2009
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Standard Grant
Collaborative Research: Post-Katrina Re-Survey of Key Geodetic Benchmarks in Coastal Louisiana
合作研究:卡特里娜飓风过后路易斯安那州沿海地区主要大地测量基准的重新调查
  • 批准号:
    0609742
  • 财政年份:
    2006
  • 资助金额:
    $ 3.09万
  • 项目类别:
    Standard Grant

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合作研究:LTREB:资源可用性、获取和动员对于可变环境中生命史权衡演变的重要性。
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