Zur Höhenänderung von Ostalpengletschern im Zeitraum 1969-1979

Eight selected glaciers in the Eastern Alps with a total area of 52 qkm have been surveyed photogrammetrically in the years 1969 and 1979, to determine the annual height change of the glacier surface by the comparison of the two different surveys. In this period of ten years the glaciers show, except for the Hintereisferner, a positive annual height change. But it is less than the change in the past period from 1959 to 1969. The increase in elevation happens mainly in the lower regions of the glaciers, while the glacier-snow-fields don't show any remarkable height changes. So the glacier advance of the sixties seem to have already reached or crossed its maximum.

本研究针对东阿尔卑斯山遴选出的8座冰川开展摄影测量调查，该批冰川总面积达52 qkm，调查分别于1969年和1979年进行，旨在通过对比两次不同时段的测量数据，测算冰川表面的年度高程变化。在这十年的观测周期内，除欣特埃伊斯费纳冰川（Hintereisferner）外，其余冰川均呈现正向年度高程变化，但该变化幅度小于1959年至1969年这一过往时段的高程变化量。高程抬升主要集中在冰川的低海拔区域，而冰川雪原未出现显著的高程变化。由此可知，20世纪60年代的冰川推进过程似乎已达到或越过其峰值。