Bathymetry of three lakes in the Vestfold Hills - Ace, Ekho and Pendant

Metadata record for data expected from ASAC Project 2647See the link below for public details on this project. This project required that water sampling be conducted at the deep point in Ace, Pendant and Ekho Lakes. Detailed surveys were conducted over the deeper sections of each lake and the deep point located.Surveys were completed between May and July 2006. In each case a grid was laid out on each lake marked with 2m bamboo poles. The grid was based on the standard metric map grid and established with a handheld GPS. It therefore contains the typical x-y error (+ or - 15 m) inherent in all GPS data where a differential correction has not been applied. No contouring software was available, so a demo version of SURFER was downloaded. The demo version does not allow saving files or printing so the 'maps' are screen dumps saved as .jpg files. The raw data are also available in the attached Excel spreadsheet.Finally, during August 2006 the lake water surface (again piezometric height of the water in a fully penetrating drill hole) was tied to bench marks and the water surface elevation reduced relative to the Davis MSL.(1983) datum as follows:Ace Lake - 9.094 m (tied to NMV/S/75)Pendant Lake - 3.029 m (tied to NMV/S/43)Ekho Lake - -1.649 m (tied to NMV/s/24)

本数据集元数据对应ASAC项目2647号项目的预期产出数据，有关该项目的公开详情请参阅下方链接。本项目要求在艾斯湖（Ace Lake）、彭丹特湖（Pendant Lake）与埃科湖（Ekho Lakes）的最深点开展水体采样作业。针对各湖泊的深水区及已确定的最深点开展了详细勘测。勘测工作于2006年5月至7月间完成。各湖泊均布设了以2米长竹竿标记的测量网格。该网格基于标准公制地图网格搭建，并通过手持GPS定位布设，因此存在未应用差分校正的GPS数据固有的典型x-y坐标误差（±15米）。当时无等值线绘制软件可用，因此下载了SURFER的演示版。该演示版不支持文件保存与打印，因此所谓的“地图”实为以.jpg（JPEG）格式保存的屏幕截图。原始数据也可在随附的Excel电子表格中获取。最后，2006年8月期间，各湖泊的水面（即全穿透钻孔内的测压水位）与水准基点进行了联测，并将水面高程归算至1983年戴维斯平均海平面（Davis MSL (1983)）基准面，具体数值如下：艾斯湖：9.094米（联测于NMV/S/75）；彭丹特湖：3.029米（联测于NMV/S/43）；埃科湖：-1.649米（联测于NMV/s/24）