Surveys at Casey, Casey skiway and Mitchell Peninsula by Henk Brolsma and Roger Handsworth, February 2009

Henk Brolsma and Roger Handsworth of the Australian Antarctic Division carried out GPS surveys at Casey, Casey skiway and Mitchell Peninsula in February 2009.At Casey they surveyed the quarry face, the wharf and the road from the quarry to the station and then to the wharf. They also collected the location of the tide gauges installed at the wharf.The Casey skiway was surveyed at the request of Andrew Pappas of Aeronautical Engineers Australia so the slope of the skiway could be determined.The survey at Mitchell Peninsula was done at the request of Casey Station Leader Graham Cook who considered the area surveyed to be a possible alternative site for a skiway.The GPS data, shapefiles exported from the GPS data after postprocessing of the rover files against the base files and a document summarising the survey are available for download from a Related URL. The elevations of the point data in the shapefiles are above the WGS84 ellipsoid. GIS data for Casey and the Windmill Islands were derived from the survey data.Casey: spot heights, quarry face, wharf, tide gauges.Windmill Islands: spot heights.The elevations of the spot height data are in metres above mean sea level.These data are part of the data available for download for Casey and the Windmill Islands - see Related URLs.The survey data were also used as a guide for revision of some of the road data for Casey, together with advice from the Station Leader Graham Cook. The GIS data are formatted according to the SCAR Feature Catalogue which includes data quality information. See Related URL.Dataset_id is an attribute of the GIS data available for download. Data from this dataset has a dataset_id of 277.

澳大利亚南极分部 (Australian Antarctic Division) 的亨克·布罗尔斯马 (Henk Brolsma) 与罗杰·汉兹沃思 (Roger Handsworth) 于2009年2月，在凯西站 (Casey)、凯西滑雪跑道 (Casey skiway) 及米切尔半岛 (Mitchell Peninsula) 开展了全球定位系统 (GPS) 测量作业。在凯西站，他们对采石场岩壁、码头，以及从采石场通往站点再延伸至码头的道路开展了测量，同时记录了安装于码头的潮位仪 (tide gauges) 的位置信息。应澳大利亚航空工程公司 (Aeronautical Engineers Australia) 安德鲁·帕帕斯 (Andrew Pappas) 的委托，团队完成了凯西滑雪跑道的测量工作，以确定该跑道的坡度参数。米切尔半岛的测量工作则由凯西站站长格雷厄姆·库克 (Graham Cook) 委托开展，其认为该测量区域可作为滑雪跑道的备选场址。可通过相关链接下载以下成果：原始GPS数据、以基准站文件为参照对流动站文件完成后处理后导出的GPS数据形状文件 (shapefiles)，以及一份总结本次测量工作的技术文档。形状文件中的点位数据高程以WGS84椭球面 (WGS84 ellipsoid) 为基准面。凯西站与风车群岛 (Windmill Islands) 的地理信息系统 (GIS) 数据均源自本次测量成果：其中凯西站的GIS数据包含测点高程、采石场岩壁、码头及潮位仪相关信息；风车群岛的GIS数据仅包含测点高程信息。上述测点高程数据以平均海平面为基准，单位为米。凯西站与风车群岛的可下载数据集包含此类数据，具体详见相关链接。本次测量数据结合站长格雷厄姆·库克的专业建议，同时作为凯西站部分道路数据修订工作的参考依据。本次产出的GIS数据遵循南极研究科学委员会 (SCAR) 要素目录 (SCAR Feature Catalogue) 规范，数据中包含质量评价信息，具体详见相关链接。数据集ID (dataset_id) 为可下载GIS数据的属性字段，本数据集对应的dataset_id为277。