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海岸系统地球物理分析的仪器提供资金。拟议的仪器包将建立在CCU当前的研究能力基础上，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。bbl观测系统将由Nortek声波和电流剖面仪（AWAC）、宽带声学多普勒电流剖面仪（BBADCP）、声波反向散射传感器、激光原位散射和透射计（LISST）和一个扇形扫描声纳组成，该声纳具有方位驱动，用于重建微尺度测深。拟议的仪器将补充现有的仪器（海底剖面仪），并有助于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：底栖生物栖息地测绘和沉积物分布；海洋硬底沉积物动力学；底边界层建模；飓风影响模型（洪水和海岸反应），海岸和海滩侵蚀模型，以及海底地下水排放评估。更广泛的影响拟议中的仪器还将支持学生的研究工作，并用于卡罗来纳海岸大学的几个本科和研究生课程。pi证明了对现有仪器的有效使用，并建议使用要求的仪器，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强烈承诺。研究合作在提案和支持文档中进行了阐述，证明了所提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.