Oceanic Shoals Commonwealth Marine Reserve (Timor Sea) Biodiversity Survey (GA0339/SOL5650) - Interpreted Geomorphic Map

The Oceanic Shoals survey (SOL5650, GA survey 339) was conducted on the R.V. Solander in collaboration with Geoscience Australia, the Australian Institute of Marine Science (AIMS), University of Western Australia and the Museum and Art Gallery of the Northern Territory between 12 September - 5 October, 2012. This dataset comprises an interpreted geomorphic map.Interpreted local-scale geomorphic maps were produced for each survey area in the Oceanic Shoals Commonwealth Marine Reserve (CMR) using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Six geomorphic units; bank, depression, mound, plain, scarp and terrace were identified and mapped using definitions suitable for interpretation at the local scale (nominally 1:10 000). Maps and polygons were manual digitised in ArcGIS using the spatial analyst and 3D analyst toolboxes. For further information on the geomorphic mapping methods please refer to Appendix N of the post-survey report, published as Geoscience Australia Record 2013/38: Nichol, S.L., Howard, F.J.F., Kool, J., Stowar, M., Bouchet, P., Radke, L., Siwabessy, J., Przeslawski, R., Picard, K., Alvarez de Glasby, B., Colquhoun, J., Letessier, T. & Heyward, A. 2013. Oceanic Shoals Commonwealth Marine Reserve (Timor Sea) Biodiversity Survey: GA0339/SOL5650 Post Survey Report. Record 2013/38. Geoscience Australia: Canberra. (GEOCAT #76658).

本次大洋浅滩科考航次（SOL5650，澳大利亚地质调查局GA航次339）于2012年9月12日至10月5日依托索兰德号调查船（R.V. Solander）开展，合作单位包括澳大利亚地质调查局（Geoscience Australia）、澳大利亚海洋科学研究所（Australian Institute of Marine Science, AIMS）、西澳大利亚大学与北领地博物馆与美术馆。
本数据集包含经解译的地貌图。针对大洋浅滩联邦海洋保护区（Oceanic Shoals Commonwealth Marine Reserve, CMR）内的各调查区域，研究团队采用2米分辨率的多波束测深与反向散射网格数据，结合测深衍生数据（如坡度、1米等高线），制作了局地尺度的解译地貌图。本次工作共识别并绘制了6类地貌单元：岸滩、洼地、丘体、平原、陡崖与阶地，所用定义适配局地尺度的解译规范（标称比例尺为1:10000）。所有地貌图与多边形要素均在ArcGIS中通过空间分析（Spatial Analyst）与三维分析（3D Analyst）工具箱完成手动数字化作业。
如需了解地貌制图方法的更多细节，请参阅收录于《澳大利亚地质调查局报告2013/38》的航后调查报告附录N：Nichol, S.L.、Howard, F.J.F.、Kool, J.、Stowar, M.、Bouchet, P.、Radke, L.、Siwabessy, J.、Przeslawski, R.、Picard, K.、Alvarez de Glasby, B.、Colquhoun, J.、Letessier, T. 与Heyward, A. 于2013年发表的《大洋浅滩联邦海洋保护区（帝汶海）生物多样性调查：GA0339/SOL5650航后调查报告》，报告编号2013/38，澳大利亚地质调查局，堪培拉（GEOCAT编号#76658）。