Differential GPS survey of points at Atlas Cove for control of 1987 aerial photography

Dave Gardner was on Heard Island in January and February 2000 as part of the 2000 ANARE. Opportunistic use was made of the the differential gps system to take accurate locations of 16 points identified from the 1987 aerial photography, so that they could be used as reference points for merging the photographs into an accurate photo mosaic.Around the station and to the NE it was easy to identify features from the photographs with confidence. To the west of the station the topography and features of the azorella wallows had changed significant and it was not possible to identify features with confidence.

戴夫·加德纳（Dave Gardner）于2000年1月至2月期间，作为2000年澳大利亚国家南极研究探险队（Australian National Antarctic Research Expeditions, ANARE）的成员前往赫德岛（Heard Island）。研究人员借此机会使用差分GPS系统（Differential GPS），对1987年航空摄影中识别出的16个点位进行精确定位，以便将这些点位作为参考点，将多张航空照片拼接为高精度影像镶嵌图。在科考站周边及东北方向区域，可较为轻松地从照片中准确识别地貌特征；而科考站西侧的地形地貌及南极漆姑草沼泽洼地已发生显著变化，无法可靠识别相关地貌特征。