Abstract This paper presents detailed elevation and volume analysis of 16 individual glaciers, grouped at four locations, spread across the Antarctic Peninsula (AP). The study makes use of newly available WorldView-2 satellite stereo imagery to exploit the previously untapped value of archival stereo aerial photography. High resolution photogrammetric digital elevation models (DEMs) are derived to determine three-dimensional glacier change over an unprecedented time span of six decades with an unparalleled mean areal coverage of 82% per glacier. The use of an in-house robust surface matching algorithm ensured rigorous alignment of the DEMs to overcome inherent problems associated with processing archival photography, most notably the identification and correction of scale error in some datasets. The analysis provides insight into one of the most challenging and data-scarce areas on the planet by expanding the spatial extent north of the AP to include previously un-studied glaciers located in the South Shetland Islands. 81% of glaciers studied showed considerable loss of volume over the period of record. The mean annual mass loss for all glaciers yielded 0.24 ± 0.08 m.w.e. per year, with a maximum mass loss of up to 62 m.w.e. and frontal retreat exceeding 2.2 km for Stadium Glacier, located furthest north on Elephant Island. Observed volumetric loss was broadly, though not always, correlated with frontal retreat. The combined mass balance of all 16 glaciers yielded − 1.862 ± 0.006 Gt, which corresponds to − 0.005 mm sea level equivalent (SLE) over the 57 year observation period.

中文翻译：

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从立体 WorldView-2 和档案航拍图像对南极半岛冰川进行严格的 3D 变化确定

摘要 本文详细介绍了分布在南极半岛 (AP) 的四个位置的 16 条冰川的详细海拔和体积分析。该研究利用新可用的 WorldView-2 卫星立体图像来利用以前未开发的档案立体航空摄影价值。高分辨率摄影测量数字高程模型 (DEM) 用于确定前所未有的 60 年时间跨度内的三维冰川变化，每个冰川的平均面积覆盖率无与伦比，达到 82%。内部强大的表面匹配算法的使用确保了 DEM 的严格对齐，以克服与处理档案摄影相关的固有问题，最显着的是识别和纠正某些数据集中的比例误差。该分析通过扩大 AP 以北的空间范围以包括位于南设得兰群岛的先前未研究的冰川，提供了对地球上最具挑战性和数据稀缺地区之一的洞察力。81% 的研究冰川在记录期间表现出相当大的体积损失。所有冰川的平均年质量损失为每年 0.24 ± 0.08 兆瓦，其中位于象岛最北端的体育场冰川的最大质量损失高达 62 兆瓦，锋面退缩超过 2.2 公里。观察到的体积损失广泛地（尽管并不总是）与额叶退缩相关。所有 16 条冰川的总质量平衡产生了 − 1.862 ± 0.006 Gt，这对应于 57 年观测期间的 − 0.005 毫米海平面当量 (SLE)。