GMX_Q06.TIF - U.S. Gulf of Mexico EEZ GLORIA sidescan-sonar data mosaic (6 of 16) (ACEA, 50 m, Clarke1866)

During February 1982 and again from August 7 to October 22, 1985 the U.S. Geological Survey (USGS) conducted four cruises to cover the U.S. Gulf of Mexico Continental Margin Exclusive Economic Zone (EEZ) seaward of the continental shelf edge. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of 16 digital mosaics of a 2 degree by 2 degree (or smaller) area with a 50-meter pixel resolution were completed for the Gulf of Mexico region.

1982年2月，以及1985年8月7日至10月22日期间，美国地质调查局（U.S. Geological Survey，USGS）先后实施四次科考航次，对美国墨西哥湾大陆边缘专属经济区（Exclusive Economic Zone，EEZ）大陆架外缘向海区域开展全覆盖探测。与此前的专属经济区普查航次一致，本次任务采用GLORIA（地质长距离倾斜声呐成像系统，Geological LOng-Range Inclined Asdic）侧扫声呐系统完成地质填图工作。科研人员对采集得到的GLORIA数据进行处理与数字镶嵌，生成了连续的海底影像。本次数据集共为墨西哥湾海域完成16幅覆盖范围为2°×2°（或更小）、像素分辨率达50米的数字镶嵌影像。