PR_Q04.TIF - Puerto Rico U.S. EEZ GLORIA sidescan-sonar data mosaic (4 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）研究区域覆盖波多黎各岛与波多黎各海沟底部之间的海底范围，西延至莫纳峡谷，东至美属维尔京群岛；群岛以南区域则涵盖穆埃托斯海槽与委内瑞拉海盆的部分海域。与此前的专属经济区勘察调查工作一致，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任务。所采集的GLORIA数据经处理与数字镶嵌后，生成了连续的海底影像。针对美属波多黎各专属经济区，本次研究共完成9幅数字镶嵌图，单幅覆盖范围约为2°×2°（或更小），像素分辨率达50米。