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用于沿海系统地球物理分析的仪器提供资金。拟议的仪器组合将建立在CCU现有研究能力的基础上，增加一个多波束回声测深仪和一个面向流程的综合底部边界层仪器组合。BBL观测系统将由Nortek声波和海流剖面仪(AWAC)、宽带声学多普勒海流剖面仪(BBADCP)、声学后向散射传感器、激光原位散射和透射仪(LISST)以及用于重建微尺度水深测量的方位驱动扇形扫描声纳组成。拟议的仪器将补充现有的仪器(海底剖面仪)，并帮助建立一个综合地球物理过程实验室，该实验室将有助于支持多种研究工作，包括：海底生境测绘和沉积物分布；海洋硬海底的沉积物动力学；海底边界层模拟；飓风影响模拟(淹没和沿海反应)、海岸和海滩侵蚀模拟以及海底地下水排放评估。更广泛的影响建议的仪器还将支持学生的研究努力，以及在海岸卡罗莱纳大学的几个本科生和研究生课程中使用。PIs证明了对现有仪器的有效利用，以及对所需仪器的拟议使用，这反映了对学生个人研究和本科生和研究生水平的实践课程的坚定承诺。研究合作在提案和证明社区更广泛地使用所提议的仪器的支持文件中有明确的表述。

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.