MRI: Acquisition of Marine Geophysical Instrumentation Suite for Seafloor Mapping and Bottom Boundary Layer Analysis

该提案要求为购置一套沿海系统地球物理分析仪器提供资金。 拟议的仪器包将建立在CCU目前的研究能力，增加一个多波束回声测深仪和一个集成的面向过程的底部边界层（bbl）仪器包。该海底生物标志观测系统将包括一个Nortek声波和海流剖面仪、宽带声学多普勒海流剖面仪、声学后向散射传感器、激光原位散射和透射仪以及一个带方位驱动的扇形扫描声纳，用于重建微尺度水深测量。 拟议的仪器将补充现有的仪器（次海底剖面仪），并帮助建立一个综合地球物理过程实验室，该实验室将用于支持多项研究工作，包括：海底生境绘图和沉积物分布;海洋硬底沉积物动力学;海底边界层建模;飓风影响建模（淹没和海岸响应）、海岸和海滩侵蚀建模以及海底地下水排放评估。 更广泛的影响拟议的仪器还将支持学生的研究工作，以及在沿海卡罗莱纳大学的几个本科生和研究生课程使用。 PI证明了现有仪器的有效使用，并建议使用所要求的仪器，反映了对本科生和研究生阶段学生个人研究和实践课程的坚定承诺。 研究合作在提案和支持文档中得到了阐述，这些文档展示了拟议仪器的更广泛的社区使用。

The proposal requests funding for the acquisition of a suite of instrumentation for geophysical analysis of coastal systems. The proposed instrumentation package will build on current research capabilities at CCU by adding a multibeam echosounder and an integrated process-oriented bottom boundary layer (bbl) instrumentation package. The bbl observing system will consist of a Nortek Acoustic Wave and Current Profiler (AWAC), Broad Band Acoustic Doppler Current Profiler (BBADCP), Acoustic Backscatter Sensor, Laser In-Situ Scattering and Transmissometer (LISST), and a sector scanning sonar with azimuth drive for reconstructing micro-scale bathymetry. The proposed instrumentation will complement existing instrumentation (sub-bottom profiler) and help establish an integrated geophysical processes laboratory, which will serve to support multiple research efforts including: benthic habitat mapping and sediment distribution; sediment dynamics in marine hardbottoms; bottom boundary layer modeling; hurricane impact modeling (inundation and coastal response), coastal and beach erosion modeling, and submarine groundwater discharge assessment. Broader ImpactsThe proposed instrumentation will also support student research efforts, as well as be used in several undergraduate and graduate courses at Coastal Carolina University. The PIs demonstrate effective use of existing instrumentation and proposed use of the requested instrumentation that reflects a strong commitment to both individual student research and hands-on coursework at undergraduate and graduate levels. Research collaborations are articulated in the proposal and supporting documentation that demonstrate a broader community use of the proposed instrumentation.