Archive of Chirp Subbottom Profile, Imagery, and Geospatial Data Collected in 2021 Near Pensacola Beach, Florida

From June 2 through 9, 2021, researchers from the U.S. Geological Survey (USGS) conducted an inshore and offshore geophysical survey to map the shoreface and determine Holocene stratigraphy near Pensacola Beach, Florida (FL). The Coastal Resource Evaluation for Management Applications (CREMA) project objective includes the investigation of nearshore geologic controls on surface morphology. This publication serves as an archive of high-resolution chirp subbottom trace data, survey trackline map, navigation files, geographic information system (GIS) data, and formal Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Processed subbottom profile images are also provided. The archived trace data are in standard Society of Exploration Geophysicists (SEG) SEG-Y revision 0 format (Barry and others, 1975). In addition to this data release, the SEG-Y files can be downloaded from the USGS Coastal and Marine Geoscience Data System (CMGDS) at, https://cmgds.marine.usgs.gov. Coastal multibeam bathymetry data were also collected for this project offshore of the Santa Rosa Island coast (during USGS Field Activity Number 2019-326-FA) and are provided in another data release (Farmer and others, 2020).

2021年6月2日至9日，美国地质调查局（U.S. Geological Survey, USGS）的研究人员开展近岸与近海地球物理勘测，以绘制佛罗里达州彭萨科拉海滩（FL）附近的滨面地貌分布图，并确定该区域的全新世地层结构。本项目为“管理应用海岸资源评估”（Coastal Resource Evaluation for Management Applications, CREMA），其研究目标为调查近岸地质因素对地表地貌的控制作用。本出版物作为数据档案，收录了高分辨率啁啾式浅地层剖面迹数据、勘测测线图、导航文件、地理信息系统（Geographic Information System, GIS）数据，以及符合联邦地理数据委员会（Federal Geographic Data Committee, FGDC）《数字地理空间元数据内容标准》（Content Standard for Digital Geospatial Metadata, CSDGM）的正式元数据，同时还提供经过处理的浅地层剖面影像。存档的记录数据采用国际勘探地球物理学家学会（Society of Exploration Geophysicists, SEG）制定的SEG-Y 0版标准格式（Barry等，1975）。除本次发布的数据外，SEG-Y格式文件还可通过美国地质调查局海岸与海洋地质数据系统（Coastal and Marine Geoscience Data System, CMGDS）下载，网址为https://cmgds.marine.usgs.gov。本次项目还在圣罗莎岛近海（对应美国地质调查局野外活动编号2019-326-FA）采集了海岸多波束测深数据，相关数据已在另一项数据发布项目中提供（Farmer等，2020）。