One-Minute Shotpoint Navigation for Seismic-Reflection Data from Western Rhode Island Sound Formatted for Use With Landmark (N80_1_SHOTNAV.TXT)

During 1980, a seismic-reflection survey utilizing Uniboom seismics was conducted by the U.S. Geological Survey (USGS) in western Rhode Island Sound aboard the Research Vessel Neecho. This cruise consisted of 2 legs totalling 8 survey days. Data from this survey were recorded in analog form and archived at the USGS. As a result of recent interest in the geology of Rhode Island Sound and in an effort to make the data more readily accessible while preserving the original paper records, the seismic data from this cruise were scanned and converted to TIFF images and SEG-Y data files. Navigation data were converted from LORAN-C time delays to latitudes and longitudes, which are available in ESRI shapefile format and as eastings and northings in space-delimited text format.

1980年，美国地质调查局（U.S. Geological Survey，USGS）搭乘"Neecho"号研究船，在罗德岛海峡西部开展了一项采用Uniboom地震技术（Uniboom seismics）的反射地震勘探调查。本次航次分为2个航段，总勘探时长共计8天。本次勘探采集的数据以模拟格式记录，并由美国地质调查局归档保存。鉴于近期学界对罗德岛海峡地质研究的关注度提升，同时为在保留原始纸质记录的前提下提升数据可及性，本次航次的地震数据经扫描后，被转换为TIFF（Tagged Image File Format）图像与SEG-Y数据文件。导航数据则由罗兰-C（LORAN-C）时间延迟值转换为经纬度坐标，该数据以ESRI形状文件（ESRI shapefile）格式提供，同时还以空格分隔的文本格式发布东向与北向平面坐标。