| WU Ziyin,LI Jiabiao,JIN Xianglong,FANG Yinxia,SHANG Jihong,LI Shoujun. 2013. Methods and procedures to determine the outer limits of the continental shelf beyond 200 nautical miles. Acta Oceanologica Sinica, 32(12):126－132 |
| Methods and procedures to determine the outer limits of the continental shelf beyond 200 nautical miles |
| Methods and procedures to determine the outer limits of the continental shelf beyond 200 nautical miles |
| Received:May 22, 2013 Revised:August 10, 2013 |
| DOI：10.1007/s13131-013-0389-y |
| Key words:200 nautical miles continental shelf demarcation methodology Okinawa Trough |
| 中文关键词: 200 nautical miles continental shelf demarcation methodology Okinawa Trough |
| 基金项目:Public Science and Technology Research Funds Projects of Ocean under contract No. 201205003; Basic jurisprudence research of natural prolongation and historical territorial waters on the delimitation of outer continental shelf under contract No. JG1315; Geological nature and delimitation influence of Kyushu-Palau ridge in Western Pacific Ocean under contract No. JT1306 |
| Author Name | Affiliation | E-mail | | WU Ziyin | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | LI Jiabiao | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | jbli@sio.org.cn | | JIN Xianglong | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | FANG Yinxia | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | SHANG Jihong | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | LI Shoujun | Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China
The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | |
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| 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. |
| 中文摘要: |
| 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. |
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