GMX_Q09.TIF - U.S. Gulf of Mexico EEZ GLORIA sidescan-sonar data mosaic (9 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）先后执行四次科考航次，对美国墨西哥湾大陆架边缘向海一侧的大陆边缘专属经济区（Exclusive Economic Zone，EEZ）开展全覆盖勘测。与此前的EEZ普查勘测一致，本次工作中USGS采用GLORIA（地质远程倾斜声呐成像系统，Geological LOng-Range Inclined Asdic）侧扫声呐系统完成地质制图。采集所得的GLORIA数据经过处理与数字镶嵌，生成了连续的海底影像。墨西哥湾海域共计完成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。