PR_Q03.TIF - Puerto Rico U.S. EEZ GLORIA sidescan-sonar data mosaic (3 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.

美属波多黎各专属经济区（Exclusive Economic Zone，EEZ）研究区域涵盖波多黎各岛与波多黎各海沟底部之间的海底范围，西至莫纳峡谷，东达美属维尔京群岛；在该群岛以南区域，研究范围覆盖穆埃托斯海槽与委内瑞拉盆地的部分区域。与此前的专属经济区普查勘测工作一致，美国地质调查局（United States Geological Survey，USGS）采用GLORIA（Geological LOng-Range Inclined Asdic）侧扫声呐系统完成了地质填图作业。所采集的GLORIA数据经过处理与数字镶嵌，生成了连续的海底影像。针对美属波多黎各专属经济区，本次工作共完成9幅覆盖面积约2°×2°（或更小）、像素分辨率为50米的数字镶嵌图。