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.

本研究的美国波多黎各专属经济区（Exclusive Economic Zone，EEZ）研究范围，涵盖波多黎各岛与波多黎各海沟盆底之间的海底区域，西至莫纳峡谷（Mona Canyon），东至美属维尔京群岛（U.S. Virgin Islands）；在群岛以南区域，该研究区覆盖穆埃托斯海槽（Muertos Trough）与委内瑞拉盆地（Venezuelan Basin）的部分范围。
与此前的专属经济区勘察调查一致，美国地质调查局（United States Geological Survey，USGS）采用GLORIA（地质远程倾斜声呐成像系统，Geological LOng-Range Inclined Asdic）侧扫声呐系统完成了本次地质填图工作。采集得到的GLORIA数据经处理与数字化镶嵌后，生成了连续的海底影像。
本次针对美国波多黎各专属经济区共完成9幅数字化镶嵌影像，单幅影像覆盖面积约为2°×2°（或更小），像素分辨率达50米。