Methods and procedures to determine the outer limits of the continental shelf beyond 200 nautical miles
doi: 10.1007/s13131-013-0389-y
Methods and procedures to determine the outer limits of the continental shelf beyond 200 nautical miles
-
摘要: This paper establishes techniques and methods to determine a variety of boundaries associated with 200 nautical miles beyond the continental shelf. The methods, based on topography, slope and second-derivative profile integrated analysis, are now able to identify automatically the foot of the continental slope (FOS). By analyzing the sedimentary profile, the points of 1% sediment thickness are recognized. Through the intersection, cut, deletion and mergence calculation of the extrapolated data set of fixed-point series, the method succeeds in generating automatically the extrapolated boundaries, including the FOS+60 M line, the 350 M line, and the 2 500 m+100 M line. In addition, based on the automatic analysis of the topographic profile, it can be applied to determine rapidly the points of maximum water depth. Taking the northern Okinawa Trough (OT) as an example, these methods are used to calculate and examine the boundaries included in the Submission by the People's Republic of China Concerning the Outer Limits of the Continental Shelf beyond 200 Nautical miles in Part of the East China Sea (ECS); the boundaries thus derived have a solid scientific and rational basis.
-
关键词:
- 200nauticalmiles /
- continentalshelf /
- demarcation /
- methodology /
- OkinawaTrough
Abstract: This paper establishes techniques and methods to determine a variety of boundaries associated with 200 nautical miles beyond the continental shelf. The methods, based on topography, slope and second-derivative profile integrated analysis, are now able to identify automatically the foot of the continental slope (FOS). By analyzing the sedimentary profile, the points of 1% sediment thickness are recognized. Through the intersection, cut, deletion and mergence calculation of the extrapolated data set of fixed-point series, the method succeeds in generating automatically the extrapolated boundaries, including the FOS+60 M line, the 350 M line, and the 2 500 m+100 M line. In addition, based on the automatic analysis of the topographic profile, it can be applied to determine rapidly the points of maximum water depth. Taking the northern Okinawa Trough (OT) as an example, these methods are used to calculate and examine the boundaries included in the Submission by the People's Republic of China Concerning the Outer Limits of the Continental Shelf beyond 200 Nautical miles in Part of the East China Sea (ECS); the boundaries thus derived have a solid scientific and rational basis.-
Key words:
- 200 nautical miles /
- continental shelf /
- demarcation /
- methodology /
- Okinawa Trough
-
Douglas D, Peucker T. 1973. Algorithms for the reduction of the number of points required to represent a digitized line or its caricature. The Canadian Cartographer, 10(2): 112-122 GaoDezhang, Zhao Jinhai, BaoYuling, et al. 2004. A profile study of gravitative-magnetic and seismic comprehensive survey in the ECS. Chinese Journal of Geophysics, 47(5): 853-861 Han Bo, Zhang Xunhua, Pei Jianxin, et al. 2007. Characteristics of crust-mantle in ECS and adjacent regions. Progress in Geophysics, 2: 376-382 HaoTianyao, Liu Jianhua, GuoFeng, et al. 2004. Research on crustal structure and lithosphere property in the Okinawa Trough area. Chinese Journal of Geophysics, 47(3): 462-468 Hedberg H D. 1976. Ocean boundaries and petroleum resources. Science, 191: 1009-1018 Huang Peng, Li Aancheng, Jiang Hengyi. 2006. Geochemical features and their geological implications of volcanic rocks from the northern and middle Okinawa Trough. ActaPetrologicaSinica, 22(6): 1703-1712 Jin Xianglong. 1992. Marine Geology of the ECS (in Chinese). Beijing: China Ocean Press Kimura M. 1985. Back-arc rifting in the Okinawa Trough. Marine and Petroleum Geology, 2: 221-240 Lee C S, Shor G G, Bibee L D, et al. 1980. Okinawa Trough: origin as back arc basin. Marine Geology, 35: 219-241 Li Jiabiao. 2008. Regional Geology in ECS (in Chinese). Beijing: China Ocean Press Li Weiran, Yang Zuosheng, Wang Yongji, et al. 1997. The petrochemical features of the volcanic Rocks in Okinawa Trough and Their Geological Significance. ActaPetrologicaSinica, 13(4): 538-550 Liang Ruicai, Wang Xugong, Wu Jinlong. 2001. Preliminary study on geophysical field and the new crust in the middle of the Okinawa Trough. Marine Geology & Quaternary Geology, 21(1): 57-64 Liang Ruicai, Wu Jinlong, Liu Baohua, et al. 2001. Linear magnetic anomalies and tectonic development for the middle Okinawa Trough.ActaOceanologicaSinica, 23(2): 69-79 Liu Zhijun, Liu Jin, Jin Jiye. 2007. Study to automatic drawing of foot line of extended continental slope. Computer Engineering and Applications, 43(31): 240-241, 248 PengRencan, Wand Jiayao. 2002. A research on creating Buffer on the Earth Ellipsoid. ActaGeodaeticaetCartographicaSinica, 31(3): 270-273 PengRencan, Wang Jiayao, TianZheng, et al. 2005. A research for selecting baseline point of the territorial sea based on technique of the convex hull construction. ActaGeodaeticaetCartographicaSinica, 34(1): 53-57 Peter J C, Carleton C. 2000. Continental Shelf Limits—The Scientific and Legal Interface. London: Oxford University Press, 2000 Sibuet J C. 1987. Back arc extension in the Okinawa Trough. Journal of Geophysical Research, 92 (B13): 14041-14063 UN (United Nations). 1982. United Nations Convention on the Law of the Sea (in Chinese). Beijing: China Ocean Press UN (United Nations). 2013. Commission on the Limits of the Continental Shelf (CLCS). http://www.un.org/Depts/los/clcs_new/clcs_home.htm [2012-12-14/2013-11-1] Wang Xugong, Liang Ruicai, Wang Yong, et al. 1998. Gravity and magnetic characteristics of the north part of the Okinawa Trough and geological interpretation. Marine Geology & Quaternary Geology, 18(4): 19-27 Wu Ziyin, Wang Xiaobo, Jin Xianglong, et al. 2004. The evidences of the back arc spreading and discussion on the key issues in the Okinawa Trough. Marine Geology & Quaternary Geology, 24(3): 67-76 XuWeiling, Le Junying. 1988. Tectonic movement and evolution of the ECS. Marine Geology & Quaternary Geology, 8(1): 9-19
点击查看大图
计量
- 文章访问数: 1186
- HTML全文浏览量: 68
- PDF下载量: 1129
- 被引次数: 0