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PAVING THE ICE HIGHWAYS -CHARTING ANTARTIC WATERS FOR SAFER NAVIGATION

机译:铺装冰高速公路-为安全航行注满南极水域

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摘要

In 2002 and 2003, HSA Systems Ltd (NZ) was awarded two Land Information New Zealand (LINZ) Chart Production contracts to compile new navigation charts in Antarctica. The five charts comprise a set of large-scale plans of Cape Adare, Cape Hallett and the Possession Islands, a medium scale coastal chart in the Ross Sea, a small-scale chart of the Balleny Islands and a small-scale coastal chart covering the offshore area of the Ross Sea. During the 2001 summer Antarctic season, contract surveys were undertaken in the uncharted regions as the hydrographic content of the new charts were to be based primarily on this new survey data. Whilst the new survey data did form the primary set of hydrographic data, the physical conditions in Antarctica makes it difficult to achieve the expected full coverage of the area to be surveyed. This results in the final chart product being an aggregation of available source data that poses all sorts of issues with merging the data in order to present the end-user with a product that is not only useable for safe navigation, but also reflects the nature of the terrain - both visible above the water line and invisible underneath. This paper will outline the production process used by HSA in compiling the Antarctic charts. It will go on to identify the practical issues faced in presenting the data to provide a satisfactory level of confidence in the end-user that the interpretation of the source data and its depiction on the finished chart is as realistic as possible.
机译:在2002年和2003年,HSA Systems Ltd(NZ)获得了两份新西兰土地信息(LINZ)图生产合同,以在南极洲编制新的导航图。这五张海图包括一套海角阿德雷角,哈雷特角和波斯群岛的大型计划,罗斯海的中型沿海海图,巴利尼群岛的小海图和覆盖该海域的小海图。罗斯海的近海区域。在2001年夏季的南极夏季,由于新图表的水文学内容将主要基于这一新的调查数据,因此在未知地区进行了合同调查。虽然新的调查数据确实形成了主要的水文数据集,但南极洲的物理条件使得难以实现预期的被调查区域的全面覆盖。这导致最终的图表产品是可用源数据的汇总,在合并数据时会出现各种问题,以便向最终用户提供不仅可用于安全导航的产品,而且还反映了产品的性质。地形-在水线上方和下方均不可见。本文将概述HSA在编制南极海图时使用的生产过程。它将继续确定在提供数据时面临的实际问题,以使最终用户对源数据的解释及其在最终图表上的描述尽可能地切合实际,从而获得令人满意的信心。

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