关门海峡航行的几点体会

关门海峡是日本濑户内海的西门户,也是日本西海陆交通要冲,它是中国北方港口、韩国及朝鲜通往日本关东的重要水道,可大大缩减通往日本关东各港的航程。笔者曾多次指挥船舶进出关门海峡,在此总结了自己过关门海峡的航行心得,供各位同行切磋、参考。     

日本关门海峡航法

就关门海峡的航道、潮流、信号、通航情况、航法及船过海峡时应注意的问题进行了论述,并根据多次通过关门海峡的经验总结出一些可供借鉴的航法。     

日本关门海峡航法

本文就关门海峡的航道，潮流，信号，通航情况，航法及船过海峡时应注意的问题进行了论述，并浅谈了自己几次通过关门海峡的体会。     

五千吨级货轮在日本水域自引的探讨（下）

6.关门海峡(KANMON KAIKYO) 关门海峡位于本州西部、九州西北角。海峡西端连接日本海,东端连接日本内海。其水域包括:从东口的部崎(HESAKI)至西口的六连岛(MUTSURE SHIMA)全长约16海里。东口以中洲浅滩(NAKA.NOSU)为界将水域隔成北、中2个航道。西口以六连岛、马岛(UMA SHIMA)片岛(KATA SHIMA)将水域分隔成东、西2个水道。东、西口之间的整个水域称关门海峡,呈U字型。 海峡是连接日本内海和日本海的交通要道,两岸有众多港口和船厂,每天船舶流量达1000艘次以上,异常繁忙,也是事故多发水域。海峡细长弯曲,可航宽度最阔处1海里左右,最窄处仅500米。关门大桥就建立在海峡最窄地段。海峡内水流湍急,沿岸多暗流、回流。海峡最窄处的九州门司崎(MOJI SAKI)大潮期平均流速达5～8节。     

麦哲伦海峡介绍及航法

麦哲伦海峡是世界重要的航海通道,水文、气象、底质复杂,海流多变化。近年来经常有船舶在此搁浅、触礁、碰撞,分析其原因是有关资料和心理准备不足,对该海峡的航行困难估计不足,也有经验方面的因素。文章较详实地介绍了海峡内的水文气象：地理条件及进出海峡的航行方法。     

大型油轮通过新、马海峡的航行安全

在实船航行经验的基础上,分析了新、马海峡的航道特点和通航条件,论述了大型油轮通过海峡的航行方法和操船注意事项,供航海人员参考。     

日本来岛海峡航法

就日本来岛海峡的航法、潮流、雾况、通航情况及船过来岛海峡应注意的事项等进行了阐述,并结合航行来岛海峡的经验,指出了航行中应注意的问题。     

浅谈日本“来岛海峡”的航行方法

对往返于中国和日本的“联裕”轮多次安全通过日本“来岛海峡”进行了相关分析,浅谈如何根据水文气象资料和有关法规法则安全通过日本“来岛海峡”的航行方法及所采取的航行措施。     

麦哲伦海峡及安全航行注意事项

麦哲伦海峡地处南半球著名的"咆哮西风带"内,气象复杂多变,航道狭长、弯道多,水流湍急.此文根据笔者的经历,对麦哲伦海峡的自然条件、水文气象、引航和报告制度以及在海峡内的安全航行注意事项等进行介绍.     

菲律宾与印度尼西亚之间主要海峡情况

对菲律宾与印度尼西亚之间的主要海峡航行价值、自然地理条件、气象、海潮流、可供航行状况等情况进行了介绍。     

琼州海峡航标配布优化方案的研究

文中介绍了琼州海峡的自然条件,详细分析了船舶交通状况和航标配布现状,提出了改善琼州海峡船舶交通状况的航标配布优化方案。     

跨海大桥桥区航道智能助航系统研发

跨海大桥桥区航道是典型的船舶航行受限水域,船桥碰撞安全风险大,桥区航道智能助航技术有助于提高桥区航道安全保障水平。分析了桥区航道通航风险因素以及水文气象分布规律,按通航规则将水域划分为预警、警戒、航道等不同区块,构建了桥区航行的船舶动态领域风险辨识模型。研发了自主检测船舶动态并向其播发防撞预警信息的装置,以及自动管理和运行软硬件设施的桥区航道船舶避碰智能助航系统。该系统已应用在福建省平潭海峡大桥桥区航道,有效改善了桥区水域的航道通航安全形势。     

豪华邮轮球首设计

考虑台湾海峡和东南亚航区风浪情况,在船舶最新设计理念及有关理论指导下,结合以往在型线设计方面的经验和基础船型数据库,研究设计三种新颖的豪华邮轮船型,并采用CFD 软件fluent和Resistance计算并优化分析船体型线及阻力,获得该适合航区较佳的船型。     

Analysis of ship drifting in a narrow channel using Automatic Identification System (AIS) data

With maritime transportation has played an important role in global economy development, ship traffic has become more congested. Therefore, ships navigate under risk conditions, and thus maritime accidents have occurred frequently. Especially, ship passing through a narrow channel is even more dangerous. Because, the ships are easy to be affected by external forces such as wind and currents that can cause ship drifts. Many latent risks are present during navigation. In order for the development of a sensible and appropriate traffic model for the safety and efficiency ship navigation, this study has focused on the actual ship behavior to understand the ship drift in the Kurushima Strait, Japan, which is one of the most dangerous routes in Japan. The analysis of ship behavior was carried out using the Automatic Identification System (AIS) data. As a result, the ships drift was understood in detail, and the latent risk was unveiled when ships pass through the narrow route. Moreover, the risk areas were obtained and visualized by the ship drift behavior analysis. The obtained results can be applied to ensure safe navigation and the development of an eco-friendly and economy efficient for ship navigation.     

Private maritime security company (PMSC) in the Strait of Malacca

Recently, maritime security issues in the Strait of Malacca have been in the limelight. Statistics highlighting the risk of piracy faced by shipping in the Strait of Malacca and the possibility of a terrorist attack have led to an enhanced awareness of the need for heightened security. The declaration by Lloyd’s Joint War Committee (JWC) of the Strait as a “war risk area” has strengthened the perception that the littoral states have not done enough to make the Strait secure for international trade.     

Examining quick delivery at an affordable cost by the NSR/SCR-combined shipping in the age of Mega-ships

ABSTRACT

The Mega-ships, the maximum containerships represented by 20,000TEU-class (LOA:400m, Breadth: 60m, Draft: 16m) which are able to transit both the Malacca Strait and the Suez Canal, have emerged in 2013, aiming at lower shipping cost by economy of scale. At the same time, they inevitably increased port calls in a rotation to collect more cargo demand, resulting in the longer transit time than ever before. Taking this trend into account, the authors proposed the quick delivery scenario between East Asia and Northwest Europe by the NSR (Northern Sea Route)/SCR (Suez Canal Route)-combined shipping, of which 4,000 TEU ice-class containership transits the NSR during the summer season and the SCR in the wintertime, based on a year-round scheduled operation. The quick delivery scenario gives the shorter transit time at an affordable shipping cost depending on the NSR navigable season length. However, the quick delivery scenario cannot avoid uncertainties in navigation especially via the NSR in the summer season, due to rough weather, sea ice, low visibility and icing in the icy water section of the NSR. The authors preliminarily concluded that a year-round scheduled operation of the NSR/SCR-combined shipping will be secured, if the practical navigation schedule is appropriately prepared.     

Recent observations in the straits of the East/Japan Sea: A review of hydrography, currents and volume transports

Recent observations of hydrography, currents and volume transports in the straits of the East/Japan Sea are reviewed. It is newly found that bottom cold water in the Korea/Tsushima Strait originating from the northern region of the East/Japan Sea appears not only in summer and autumn but also in winter. Intensive observations in the Korea/Tsushima Strait revealed two distinct cores of northeastward currents in the upper layer of the western and eastern channels. Mean volume transport through the Korea/Tsushima Strait is calculated as 2.5 ± 0.5 Sv from four-year direct and indirect measurements. As continuous monitoring has started in the Tsugaru and Soya Straits, understanding of temporal variability of currents and volume transports through the straits is in progress. For the first time, simultaneous time series of volume transports are available in the Korea/Tsushima and Tsugaru Straits during the winter of 1999–2000. Ouflow through the Tsugaru Strait accounts for about 70% of inflow through the Korea/Tsushima Strait for this period.