GEOSPAR: A portable platform for GPS-Acoustic measurements of seafloor motion

PI申请资金用于开发便携式平台，用于收集全球定位系统-声学（GPS-A）测量数据，以测量海底变形。拟议的系统将由内部供电和自主，能够在无人值守的情况下收集GPS-A数据至少24小时。它将有两个由GPS引导的推进器，以自动保持其在海底声波应答器阵列上方的横向位置。它将是便携式的，独立的，可从各种船只部署到任何有机会的船只的地区。更广泛的影响：在苏门答腊、智利和日本地震之后，对这一领域/学科的更多知识和工具的需求更加明显。为了进一步推动这一领域的研究，需要新的工具来产生新的科学。如果成功，GEOSPAR将在研究和教育方面带来关于地球活动过程的新知识，以及预防大地震和由此产生的海啸的观点。对美国国家科学基金会支持的四个主要项目的科学目标有直接影响：地球科学、卡斯卡迪亚计划、地球望远镜和OOI电缆观测站（沿着卡斯卡迪亚俯冲带）。

The PI's request funding to develop a portable platform to collect Global Positioning System - Acoustic (GPS-A) measurements to measuring seafloor deformation. The proposed system will be internally powered and autonomous, capable of collecting GPS-A data for a minimum of 24 hours while unattended. It will have two thrusters guided by GPS to automatically maintain its lateral position above an array of acoustic transponders on the sea floor. It will be portable, self-contained and deployable from a variety of vessels to open access to regions wherever there are ships-of-opportunity.Broader Impacts: After the Sumatra, Chile and Japan earthquakes the need for more knowledge and tools in this area/discipline is even more apparent. To further enable research in this area, new tools are required to engender new science. If successful, GEOSPAR will bring new knowledge on earth's active process both in research and education, as well as a view of disaster prevention against large earthquakes and resultant tsunami. Has direct impact upon science goals of four major NSF supported efforts: GeoPRISMS, the Cascadia Initiative, Earthscope, and the OOI cabled observatory (along the Cascadia Subduction Zone).