高精度距离等比例线法海洋划界模型研究

分析表明，目前国内外只对距离等比例线法海洋划界模型作了初步的研究，所建立的模型仍然停留在欧氏平面或地图投影平面上，无法满足海洋划界对分界线点位精度的要求。为改变这种局面，提出并建立了一种全新的基于地球椭球体缓冲区构建技术的高精度距离等比例线法——椭球面距离等比例水线法海洋划界模型。     

自然图形间的中间线和比例线方法

依据国际海洋法公约对海洋划界的＂中间＂线要求和定义,剖析了中间线（中轴）和比例线法的原理,相应剖析并讨论了中间线法缺点所在,指出严密实现地球椭球面上自然图形比例线方法是海上划界技术的新的趋势,介绍了地图代数在中间线法、比例线法上的基础性工作。     

海洋划界新理论新方法与技术问题

1982年《联合国海洋法公约》签署以来15个年头过去了。许多沿海国进行了海域划界实践,海洋划界划定的理论与方法有了新的全面发展。纵观历史,国际海洋边界划定目前总趋势是:二维海洋海岸线地理学代替三维海底地质地貌因素,专属经济区与大陆架划界代替单纯大陆架划界,(200海里)距离原则代替自然延伸原则,综合性单一海洋边界代替传统性大     

对我国海洋划界问题的思考与建议

《联合国海洋法公约》（以下简称《公约》）条文虽然涉及到领海、毗邻区、专属经济区和大陆架等有关海洋区域划界理论和划界法律原则,但其论述毕竟是笼统简单的。１９８２年该《公约》签署以来１５个年头过去了,许多沿海国进行了海域划界实践,海洋划界理论与方法有了新...     

海洋地磁测量资料的虚拟检查线调差方法

在海洋磁力测量中,因受测量环境及各项改正的残余量等因素的系统性影响,不同测线间存在着不同程度的系统差,这种测线系统差会使测区磁场水平不统一,导致磁异常等值线图失真。为此,研究了基于虚拟检查线的海洋地磁测量数据调差方法,该方法尝试在不使用检查线数据情况下,沿垂直于测线方向选取一定数量的虚拟检查线,根据测线数据拟合出各条虚拟检查线上场的分布规律,并将测线方向拟合前后残差的平均值作为各条测线上的测线系统差,对各条测线数据进行改正。仿真计算与分析表明:对于磁异常变化较平缓的测区,该方法可以有效消除测线系统差;当磁异常变化剧烈时,该方法可以部分消除测线系统差。     

论等距离在大陆架划界中的地位

大陆架划界是海洋划界的最主要组成部分,等距离在国家间的大陆架划界实践中被普遍采用,对其在大陆架划界中的地位,不同的国家和学者持有不同的意见。文章从与等距离有关的国际公约、国家间的划界实践、以及国际判例三个角度出发进行分析,对等距离的地位作出了界定。     

国际海洋划界案例及概况

1 美俄白令海海洋边界 现在所称的“美俄白令海海洋边界”,是1990年6月1日在前苏联总统戈尔巴乔夫访美期间,由美国和前苏联两国外长在华盛顿签署的。白令海属半封闭海域,美俄两国属海岸相向国家。划界区还延伸到白令海峡、楚克奇海和北冰洋的某些近海区域。这条海洋划界线为目前世界上最长海洋边界线,长达2 575公里。     

增加近岸船载重力测量数据覆盖的推估方法研究

针对海洋区域离岸距离5～30km的范围内船载重力测量数据覆盖空白的现状,基于已有测线数据,对其进行不同空间距离采样形成对应的采样序列。利用动态时间规整算法计算其与初始测线数据的相关系数,依据相关系数与采样距离之间的关系,确定了最优重采样空间距离新方法。以最优重采样空间距离对测线数据进行重采样,利用拉格朗日插值算法,沿测线方向将测线数据向陆地推估。经过不同测线的内外部检核,结果表明船载重力测量向陆地方向扩展的保守距离约为5～10km,减少了船载重力测量数据在近岸海域覆盖空白的面积。本研究成果可为建立陆海一致垂直基准工作提供更全面的基础数据,技术方法可为航空重力、地磁等测线数据的精细处理及应用提供参考。     

波罗的海国际海洋划界状况研究

本文介绍了波罗的海海域的自然地理状况、海洋划界的历史沿革以及海洋划界的进展情况,分析了波罗的海划界的具体内涵以及经验,指出海洋划界运用单一海洋边界划出有利于国家的行政管理,以期对世界其他海域划界提供有利参考.     

省际海域勘界信息系统的设计与实现

海域勘界信息系统建设是省际海域勘界工作的重要组成部分。基于地理信息系统技术实现了各类勘界调查数据的综合管理以及划界方案的辅助生成等功能,为数据查询、分析和海域划界方案生成与评估等提供技术平台。实现了海洋划界中常用的多种划界方法,方法科学、数据处理精确、结果表现直观,在勘界方案制订和协调工作中发挥了重要作用。     

国际海洋边界划定与目前状况

本文简要描述了国际海洋边界划定与目前状况，其内容包括海洋边界划定，边界划定与海洋法，世界海洋区域及美国、俄罗斯划界概况和专属经济区与大陆架等问题。文章呼呈我国应加速海洋立法过程，尽快划出专属经济区与大陆架边界。     

国际海洋划界技术发展与探讨

国际海洋划界的地理环境复杂，涉及学科多，既有法律问题也有技术方法问题。适用于海域划界的国际法原则有多种，在这些海域划界原则指手下涉及了多种因素，并形成了多种划界方法，这样必将使划界工作变得异常复杂。GIS、决策支持系统等技术的应用将在国际海洋划界的管理方面提供强有力的支持，并成为重要的决策工具。     

Quantitative analysis for maritime delimitation: Reassessing the Bay of Bengal delimitation between Bangladesh and Myanmar

This article examines technical aspects of the maritime boundary dispute between Bangladesh and Myanmar (the ‘Bay of Bengal case’). This dispute was the first maritime delimitation determined by the International Tribunal for the Law of the Sea (ITLOS). The 2012 decision was also the first time that a maritime boundary for the seabed and subsoil of the Exclusive Economic Zone (EEZ) and the extended continental shelf (ECS) was determined by international adjudication. This was also therefore the first time that detailed technical quantification of seabed areas within the EEZ and ECS was needed for achieving an equitable division of these maritime zones in an international forum. Following review of the principles of maritime delimitation on which the ITLOS reached its determination, this article analyzes the legal status and delimitation effect of St. Martin's Island. Concerning the question of whether the legal regimes of the EEZ and continental shelf should be treated differently in a single delimitation line, although the ITLOS determined that the legal regimes should not be distinguished in the present case, a different approach is proposed for future cases. The article identifies how quantitative modelling can be used to achieve an equitable boundary and proposes a model to adjust provisional equidistance lines in accordance with the complex geophysical rules prescribed for the outer limits of the ECS in Article 76 of the United Nations Law of the Sea Convention (LOSC).     

论证南海海疆国界线

追溯探查历史图件,根据1946年内政部方域司编制的一组"南海诸岛位置图"(南海诸岛位置图,南沙群岛,中沙群岛,西沙群岛,西沙群岛永兴岛及石岛,南沙群岛太平岛)和1948年出版的"中华民国行政区域图"分析,南海诸岛外围的断续线段是我国在南海的海疆国界线;当时划定,是与陆域国界相连的,海上国界是陆域国界的延伸,以断续线段表示是国际地图上对海疆国界线通用的表示方法,当时即获国际认可。上述结果为南海划界提供了科学依据。     

孟加拉湾海洋划界案初步研究

孟加拉湾划界案是国际海洋法法庭审理的第一起海洋划界案。法庭对盂加拉国与缅甸的领海、专属经济区及大陆架的划界纠纷进行了裁决。分析研究了该案中法庭对这种大陆架案件的管辖权、当事国双方对这一区域的权利主张以及法庭划界采用的法律与划界的方法(等距离/相关情况方法)。     

The Guinea-Bissau–Senegal maritime boundary dispute

This article discusses the role of negotiation, arbitration, and that of the International Court of Justice (ICJ) in resolving maritime boundary disputes in the Gulf of Guinea region. Primarily using the cases of Guinea-Bissau and Senegal, the paper highlights that joint maritime development agreements could be a better option for resolving existing maritime boundary disputes in the region rather than outright delimitation requests.     

Preliminary considerations on the potential influence of submarine fans on marine delimitation

The complex issues associated with marine delineation for the outer limit of continental shelf and the boundary delimitation have provoked considerable attention among researchers in a variety of academic circles, particularly in the juristic filed and the geo-science field. In the present contribution, we start from an overview of submarine fans, as one of common types of sediment-deposit bodies in the ocean, and ex- plore the related geological features which may be of relevance to the marine delimitation in accordance with the 1982 United Nations Convention on the Law of the Sea. We carry out a comparative assessment of certain significant geological features of submarine fans, using the Bengal fan as an example, which is the biggest submarine fan in the world and represents an important factor in the maritime boundary dispute between the neighboring states currently. The relationship between the special geological bodies and the international principle in the 1982 United Nations Convention can be established by combining geological and juristic analyses. This preliminary observation on the effect of submarine bodies both on the marine entitlement and boundary delimitation indicates that it is important for the international society to appro- priately deal with this problem so that the marine right of any state can be protected.     

论证南海海疆国界线

According to a series of important historical maps,i.e.,the Location Map of the South China Sea Islands,the Nansha Islands,Zhongsha Islands,Xisha Islands,Yongxing Island and Shidao Island,and Taiping Island(archived by the Territorial Administration Division of the Ministry of Interior of Republic of China in 1946),and the Administration District Map of the Republic of China published in 1948,the dashed line surrounding the South China Sea Islands represents China's sea boundary in the South China Sea at that time.It was both connected with,and an extension of,the land boundary of China.At that time the dashed line was used to represent the waters boundaries while the solid line was used to represent the land boundary—a universal method used in maps that was then recognized internationally.The above observation provides historical and scientific evidence of China's sea boundary in the South China Sea that is useful for the international maritime delimitation over the South China Sea area.     

"3S"技术在省际间海域勘界中的应用

结合海域勘界的理论方法,在“3S”技术支持下,以天津、河北勘界为例,探讨了建立省际间海域勘界辅助决策信息系统的基本方法和关键技术。实践证明,利用“3S”技术建立省际间海域勘界辅助决策信息系统是一条可行的途径,“3S”技术是勘界工作的重要辅助决策手段。