Upgrade of Multichannel Seismic Capabilities on the Research Vessel MAURICE EWING

这份授予纽约哥伦比亚大学Lamont-Doherty地球观测站的合同提供了一个新的多通道地震反射采集系统，包括一个8公里长的固态水听器拖缆，以显著提高Maurice Ewing研究船的地球物理调查能力，Maurice Ewing是一艘由LDEO运营的nsf所有的船，是大学-国家海洋实验室系统研究船队的一部分。增强后的系统可以安装在现有的R/V Ewing处理系统上，因此可以立即投入使用，既可以提供长时间的深穿透数据采集（从目前的最大6公里），也可以提供较浅研究的高分辨率数据采集，因为拖缆包括1.5公里的6.25米组间距段，以及6.5公里的12.5米段和备件。该系统将具备3-D、多拖缆能力，目前正在考虑将其作为R/V Ewing船改装的一部分，或者购买一艘替代船，这里支持的地震系统将为学术研究人员提供两种情况下的改进能力。我们预计这些改进将对使用该船进行研究的海洋地球物理学家具有实质性的优势，我们预计该系统将大量用于支持正在进行的主要NSF研究计划，包括综合海洋钻探计划（IODP）， EarthScope， margin和RIDGE 2000

0342067DieboldThis award to Lamont-Doherty Earth Observatory of Columbia University in the City of New York provides a new multichannel seismic reflection acquisition system, including an 8-kilometer solid state hydrophone streamer, to significantly improve the geophysical survey capabilities of the research vessel Maurice Ewing, an NSF-owned ship operated by LDEO as part of the University-National Oceanographic Laboratory System research fleet. The enhanced system can be accommodated on the existing R/V Ewing handling system, and thus put to immediate use, providing both long, deep-penetration data acquisition with the increased length (from the present 6 kilometer maximum) as well as substantial improvement in high resolution data acquisition for shallower studies, since the streamer includes 1.5 km of 6.25-meter group spacing sections as well as 6.5 kilometers of 12.5-meter sections plus spares. The system will accommodate 3-D, multiple streamer capabilities, which are presently being considered either as part of a refit of R/V Ewing or acquisition of a replacement vessel, and the seismic system supported here will provide improved capabilities for academic researchers under either scenario. We anticipate that these improvements will be of substantial advantage to marine geophysicists using the ship in their research, and we anticipate substantial use of the system to support major ongoing NSF research initiatives, including the Integrated Ocean Drilling Program (IODP), EarthScope, MARGINS and RIDGE 2000.***