Global S&T Development Trend Analysis Platform of Resources and Environment
项目编号 | 1459691 |
Exploring the absolute pressure gauge data from the Cascadia Initiative OBS deployment for transient changes in seafloor elevation | |
Spahr Webb | |
主持机构 | Columbia University |
项目开始年 | 2015 |
2015-04-15 | |
项目结束日期 | 2017-03-31 |
资助机构 | US-NSF |
项目类别 | Standard Grant |
项目经费 | 96649(USD) |
国家 | 美国 |
语种 | 英语 |
英文摘要 | Part 1 The proposed work will study the use of pressure gauges for geodetic observations to monitor vertical deformation in the offshore regions of the Cascadia subduction zone. The work could contribute to our understanding of slow-slip seismic events and their potential for the generation of large tsunamis. The project will use the Cascadia Initiative?s absolute pressure gauges (APG) data set to develop methods for removing oceanographic noise from the observations to determine what types and time scales can be detected using pressure gauges. Additionally, the project will search for possible vertical deformation that may have occurred during the Cascadia Initiative deployment. The APG records have the potential to detect slow slip events in the accretionary prism, which could change or enhance the understanding of the displacement behavior of these faults and of deformation in the overlying accretionary prism. The results could be applicable to the future data acquired in Cascadia region and elsewhere. Part 2 Funds are provided to study the large Cascadia Initiative (CI) absolute pressure gauge (APG) data set that will allow the use of pressure gauges for geodetic observations to monitor deformation in the offshore regions of the Cascadia subduction zone. The utility of APG data for geodetic observations is limited by high noise levels from oceanographic signals and by the inherent drift in the sensors. The proposed research will use this large data set first to develop methods of removing oceanographic noise from these observations so as to determine what types and time scales of vertical deformation can be detected using pressure gauges. The second component of the research will be to search for possible vertical deformation that may have occurred during the CI deployment. The discovery of seismic slow slip events or similar events beneath the seafloor will likely change or enhance our understanding of the displacement behavior of these faults and of deformation in the overlying accretionary prism. This results will be applicable not only to the data acquired in Cascadia, but also to observations from future ocean bottom seismometer deployments with that are equipped with APGs, which also includes a GeoPRISMS focus site, the Hikurangi (New Zealand) subduction margin. |
来源学科分类 | Geosciences - Ocean Sciences |
文献类型 | 项目 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/67811 |
专题 | 环境与发展全球科技态势 |
推荐引用方式 GB/T 7714 | Spahr Webb.Exploring the absolute pressure gauge data from the Cascadia Initiative OBS deployment for transient changes in seafloor elevation.2015. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Spahr Webb]的文章 |
百度学术 |
百度学术中相似的文章 |
[Spahr Webb]的文章 |
必应学术 |
必应学术中相似的文章 |
[Spahr Webb]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论