Typical Spatial Distribution of Merchant Vessels and Trade Flow in South China Sea
MEI Qiang;WU Lin;PENG Peng;ZHOU Peng;CHEN Jinhai;Navigation college, Jimei University;National-local Joint Engineering Research Center for Marine Navigation Aids Services;Institute of computing technology, Chinese Academy of Sciences;State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research;
With the deepening of China's opening to the outside world and the advancement of the Belt and Road Initiative, South China Sea, as an important gateway to China's opening-up and a vital joint for important searoutes gathering in the world, is embodying prominently strategic position. How to ensure the safety of routes and regulate the vessels sailing in the open water of the south China Sea, safeguard national rights and enhance regional trade is a difficult problem for governmental administrators. In this paper, we excavated the typical spatial distribution of vessels by calculating and visualizing the traffic density of navigation in the South China Sea to analyze the main routes selected by full use of the satellite AIS data of South China sea in 2015 and vessel information database, so the habitual routes could be detected in this region. On the other hand, the statistics on the number of vessels in South China Sea were computed by the statistic line set to find the peak points of the vessel crossing data on the main routes being selected by the most of vessels. Via the above steps, the typical spatial distribution of vessels was defined clearly. Meanwhile, the main flow of trades in South China Sea was determined based on 4 dominant sorts(Bulk, Container, OilChemical and Ro-Ro) of vessels' main routes selected. Research indicated that:(1) The main routes followed the authoritative sailing book《Admiralty Ocean Passage for the World》, which provides sailors with the routes consisting of the waypoints recommended. As a result, the construction and development have little influence on the navigation in this region. Maritime safety administrator can set traffic separation scheme efficiently based on this research;(2) Long-distance shipping is the major mode of transportation. Pearl River Delta being one of the main ends of trade flow indicates the China's dominant position in the South China Sea Trade. This research also attracts more attention to the Beibu Gulf and Hainan Island's trade potentiality.
【Fund】： 国家自然科学基金项目(41501490);; 中国科学院重点部署项目(ZDRW-ZS-2016-6-3);; 福建省教育厅基金(JAT160257);福建省教育厅教改项目(JZ160302);; 集美大学李尚大基金(ZC2016005)~~
【CateGory Index】： F552
【CateGory Index】： F552