Collaborative Research: Design and Construction of a Second-Generation Buriable Broadband Ocean Bottom Seismograph and Burial System

这一合作的海洋科学技术开发项目建立在陆地上所取得的成功的基础上，临时部署了便携式宽带地震仪。已经提出了一个科学论点，即为海洋提供同等的能力。目前可用的便携式宽带海底地震仪(BBOB)和埋藏系统都是原型，在海洋中使用这些地震仪成为常规之前，必须加以改进。该项目将开发埋葬系统和可埋藏式地震仪的组合，使每天能够部署2-3个BBOBS。该埋葬系统将成为美国国家海底地震仪器池(OBSIP)的一部分，并将向研究界开放。新的埋设系统将使用重力来埋设地震仪，由于新的BBOBS使用的井下地震仪的直径比传统模型小得多，埋葬新的地震仪所需的力将大大减少。提高海洋的地震复盖率对于提高地震分辨率以更好地解决与固体地球动力学有关的现有问题和新问题至关重要。地球物理界将受益于海底地震仪，其测量能力可与陆基地震站相媲美，可迅速部署和回收，成本最低。该项目将建造和测试一个埋葬系统和一个BBOBS。如果新的可埋地震仪和埋葬系统达到设计目标，将寻求资金来升级现有的多达30台配备可埋宽带地震仪的仪器。

This collaborative ocean science technology development project builds upon successes achieved on land with temporary deployments of portable broadband seismographs. A scientific argument has been made to provide an equivalent capability for the oceans. Currently available portable broadband ocean bottom seismographs (BBOBS) and burial systems are prototypes and must be improved before the use of these seismographs in the oceans becomes routine. This project will develop a combination of burial system and buriable seismometer that will enable 2-3 BBOBS deployments per day. The burial system will become part of the U.S. National Ocean Bottom Seismic Instrumentation Pool (OBSIP) and will be available to the research community. The new burial system will use the force of gravity for seismometer burial, and because the new BBOBS uses a borehole seismometer that has a substantially smaller diameter than conventional models, the force required to bury the new seismometer will substantially less. Enhanced seismic coverage over the oceans is vital to improving seismic resolution to better address existing as well as new questions pertaining to solid Earth dynamics. The geophysical community will benefit from ocean bottom seismometers with measurement capabilities comparable to land-based stations that can be deployed and recovered quickly and at minimal cost. This project will construct and test one burial system and one BBOBS. Should the new buriable seismometer and burial system meet design goals, funding will be sought to upgrade up to 30 existing instruments with buriable broadband seismometers.