JPEG images of Seismic data collected by the U.S. Geological Survey as part of the Geologic Framework Studies project offshore of the Grand Strand, South Carolina

JPEG images of each seismic line were generated in order to incorporate images of the seismic data into Geographic Information System (GIS) projects and data archives utilizing HTML. The JPG format is universal and enables hassle-free transfer of data. These data yield a pictorial view of the seismic data acquired.In 1999, the USGS, in partnership with the South Carolina Sea Grant Consortium, began a study to investigate processes affecting shoreline change along the northern coast of South Carolina, focusing on the Grand Strand region. Previous work along the U.S. Atlantic coast shows that the structure and composition of older geologic strata located seaward of the coast heavily influences the coastal behavior of areas with limited sediment supply, such as the Grand Strand. By defining this geologic framework and identifying the transport pathways and sinks of sediment, geoscientists are developing conceptual models of the present-day physical processes shaping the South Carolina coast. The primary objectives of this research effort are: 1) to provide a regional synthesis of the shallow geologic framework underlying the coastal upland, shoreface and inner continental shelf, and define its role in coastal evolution and modern beach behavior; 2) to identify and model the physical processes affecting coastal ocean circulation and sediment transport, and to define their role in shaping the modern shoreline; and 3) to identify sediment sources and transport pathways; leading to construction of a regional sediment budget.为借助HTML将地震数据图像整合至地理信息系统（Geographic Information System，GIS）项目与数据档案库中，我们生成了各条地震测线的JPEG（Joint Photographic Experts Group）图像。JPG格式通用性极强，可实现顺畅无阻的数据传输，此类图像可直观呈现所采集的地震数据。 1999年，美国地质调查局（United States Geological Survey，USGS）与南卡罗来纳州海洋资助联盟（South Carolina Sea Grant Consortium）合作启动一项研究，旨在探究影响南卡罗来纳州北部海岸海岸线变化的过程，研究重点聚焦于格兰德斯特兰德（Grand Strand）区域。此前针对美国大西洋沿岸开展的研究表明，位于海岸向海一侧的古老地质地层的结构与组成，会对沉积物供给有限的区域（如格兰德斯特兰德）的海岸动态产生显著影响。通过明确该地质框架、识别沉积物的运移路径与沉积汇，地球科学家正在构建塑造南卡罗来纳州海岸的现代物理过程的概念模型。 本研究的核心目标如下： 1. 对海岸高地、临滨带（shoreface）及内大陆架（inner continental shelf）浅部覆盖的浅层地质框架开展区域综合研究，并明确其在海岸演化与现代海滩动态中的作用； 2. 识别并建模影响近岸海洋环流与沉积物运移的物理过程，阐明其在塑造现代海岸线中的作用； 3. 识别沉积物源区与运移路径，进而构建区域沉积物收支平衡模型。