PR_Q07.TIF - Puerto Rico U.S. EEZ GLORIA sidescan-sonar data mosaic (7 of 9) (ACEA, 50 m, Clarke1866)

The Puerto Rico U.S. EEZ study area includes the seafloor between the island of Puerto Rico and the Puerto Rico Trench floor and extends west to Mona Canyon and east to the U.S. Virgin Islands. South of the islands, it covers parts of the Muertos Trough and the Venezuelan Basin. 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 9 digital mosaics of approximately a 2 degree by 2 degree (or smaller) area with a 50-meter pixel resolution were completed for the Puerto Rico U.S. EEZ.

美国专属经济区（Exclusive Economic Zone, EEZ）波多黎各研究区域，涵盖波多黎各岛与波多黎各海沟床之间的海底范围，西至莫纳峡谷（Mona Canyon），东抵美属维尔京群岛（U.S. Virgin Islands）；群岛以南区域则覆盖穆埃托斯海槽（Muertos Trough）与委内瑞拉盆地（Venezuelan Basin）的部分海域。与早期专属经济区勘测普查工作一致，美国地质调查局（United States Geological Survey, USGS）采用GLORIA（地质远程倾斜声呐，Geological LOng-Range Inclined Asdic）侧扫声呐系统完成了本次地质填图作业。所采集的GLORIA数据经处理与数字镶嵌后，生成了连续的海底成像成果。针对波多黎各美国专属经济区，本次项目最终共完成9幅面积约2°×2°（或更小）、像素分辨率为50米的数字镶嵌成像图。