The collection of aerial photographs held by the Australian Antarctic Data Centre

Aerial photography has been an important means of acquiring spatial data in Antarctica and the subantarctic islands, though satellite imagery is playing an increasingly important role.\n\nThe Australian Antarctic Data Centre's collection of aerial photographs includes (but is not limited to) the following.\n\n1 Vertical and oblique aerial photography of the Australian Antarctic Territory coastline and some inland areas, acquired by the US Navy during Operation Highjump in 1946/47.\n\n2 Vertical and oblique aerial photography flown by National Mapping (now part of Geoscience Australia) during 1954 - 1965 from fixed wing aircraft, mainly using a K17 trimetrigon camera. From 1960 the vertical camera in the system was replaced with a Wild RC9. An Eagle V camera was also used in 1963. The photography was acquired along the Australian Antarctic Territory coastline and over the Prince Charles Mountains.\n\n3 Comprehensive and systematic coverages of the Prince Charles Mountains and Enderby Land flown by National Mapping from a fixed wing aircraft in the 1970s using a Wild RC 9 camera.\n\n4 Photography acquired since 1977 from helicopters using non-metric Hasselblad and Linhof cameras. This photography was acquired principally for life science research and was not intended to be used for mapping. The photography was acquired over Heard Island, Macquarie Island, the Larsemann Hills, the Windmill Islands, the Vestfold Hills and Mawson Coast.\n\n5 Photography acquired since 1992/93 by the Australian Antarctic Division and AUSLIG (now part of Geoscience Australia) from helicopters using a Zeiss UMK camera. It has been used to acquire photography for large scale mapping of the Australian Antarctic Territory, Heard Island and Macquarie Island.\n\n6 Photography acquired since 2000 by the Australian Antarctic Division from helicopters using a Wild RC8 camera. A revision of the guidelines for overflight heights over animal colonies required that animal census photography be done with a camera with a longer focal length than the Linhof camera previously used for this type of work. This was in order to maintain the same scale at a greater height. The Wild RC8 camera has also been used for photography for mapping at the Windmill Islands.\n\n7 Photography of sea ice acquired since 2003 by the Australian Antarctic Division from helicopters using a digital Nikon D1X digital camera.\n\n8 Photography of Adelie penguin colonies and other features acquired since 2009/10 by the Australian Antarctic Division from helicopters using a digital Hasselblad H3D-II 50 digital camera.\n\nDigital flight lines and photo centres have been generated to represent the runs along which the photographs were taken and the centres of the photographs. \n\n \n\nThe photos are scanned on a needs basis. Most of the Operation Highjump photos have been scanned but overall a minority of the photos have been scanned. Preview images have been created of the scanned photos. The scanning of the Operation Highjump photos is described by a separate metadata record: 'Digital images of Operation Highjump aerial photography'.\n\nThe collection can be searched in two ways.\n\n1 A web search - see Aerial Photograph Catalogue link below. Preview images of the scanned photos may be viewed using this search. In addition to the search, the Catalogue has tabs with information about viewing or obtaining photographs, the cameras used and further historical information.\n\n2 The flight line and photo centre data can be downloaded as shapefiles (refer to url below) and overlaid on topographic data in GIS software such as ArcGIS. The Australian Antarctic Data Centre (AADC) has mainly large to medium scale data topographic data available for download - refer to url below.\n\nThere are some flight lines for which photo centres have not yet been generated and some photo centres for which flight lines have not yet been generated. This is being done gradually over time. The flight line and photo centre shapefiles available for download will be updated about every six months.\n\nAlso available for download is a document with information about the cameras and a timeline for the photography - refer to url below.

航空摄影一直是南极及亚南极岛屿获取空间数据的重要手段，尽管卫星影像正发挥着日益重要的作用。

澳大利亚南极数据中心（Australian Antarctic Data Centre）的航空照片集包含（但不限于）以下内容：

1. 1946/47年美国海军‘跳高行动’（Operation Highjump）期间获取的澳大利亚南极领地海岸线及部分内陆区域的垂直与倾斜航空摄影照片。

2. 1954-1965年间，国家测绘局（现隶属于澳大利亚地球科学局）使用固定翼飞机拍摄的垂直与倾斜航空照片，主要采用K17三角测量相机。1960年起，系统中的垂直相机更换为Wild RC9，1963年还使用过Eagle V相机。这些照片覆盖澳大利亚南极领地海岸线及查尔斯王子山脉区域。

3. 20世纪70年代，国家测绘局使用固定翼飞机及Wild RC9相机对查尔斯王子山脉和恩德比地进行的全面系统航空摄影。

4. 1977年以来使用直升机及非量测型哈苏（Hasselblad）和林哈夫（Linhof）相机获取的航空照片。这些照片主要用于生命科学研究，并非为制图目的拍摄，覆盖赫德岛、麦夸里岛、拉森曼丘陵、风车群岛、韦斯特福尔丘陵及莫森海岸区域。

5. 1992/93年以来，澳大利亚南极分部与澳大利亚土地信息集团（AUSLIG，现隶属于澳大利亚地球科学局）使用直升机及蔡司UMK相机拍摄的航空照片，用于澳大利亚南极领地、赫德岛及麦夸里岛的大比例尺制图。

6. 2000年以来澳大利亚南极分部使用直升机及Wild RC8相机拍摄的航空照片。由于动物栖息地飞越高度指南修订，动物普查摄影需使用比此前林哈夫相机更长焦距的设备，以在更高高度保持相同比例尺。该相机也用于风车群岛的制图摄影。

7. 2003年以来澳大利亚南极分部使用直升机及尼康D1X数码相机拍摄的海冰航空照片。

已生成数字化航迹线与照片中心点数据，分别代表拍摄航线及照片中心位置。

照片按需求进行扫描。‘跳高行动’的大部分照片已完成扫描，但整体而言仅少数照片已扫描。已为扫描照片创建预览图，‘跳高行动’航空照片的扫描工作由单独元数据记录《跳高行动航空摄影数字影像》描述。

该数据集可通过两种方式检索：

1. 网页搜索——详见下方‘航空照片目录’链接。通过该搜索可查看扫描照片的预览图。除搜索功能外，目录还设有标签页，提供照片查看或获取方式、所用相机及更多历史信息。

2. 航迹线与照片中心点数据可作为shapefile格式下载（详见下方网址），并在ArcGIS等地理信息系统（GIS）软件中与地形数据叠加。澳大利亚南极数据中心（AADC）主要提供大至中比例尺地形数据下载——详见下方网址。

部分航迹线尚未生成对应照片中心点，部分照片中心点也未关联航迹线，此项工作正逐步推进。可供下载的航迹线与照片中心点shapefile每六个月更新一次。

此外，还可下载包含相机信息及摄影时间线的文档——详见下方网址。