Record of elevation changes of glaciers in the eastern Alps between 1950-1959-1969

In a continuation of Richard Finsterwalder's work of 1950 eight selected glaciers in the Eastern Alps haye been photogrammetrically surveyed and mapped on a scale of 1: 10,000 in the years 1959 and 1969 in order to establish arecord of glacier variation. From a comparison of isohypses of the 1950, 1959 and 1969 surveys the height changes of the glacier surfaces have been determined for approximately two decades. This yielded an average raise of 0,1 m per year, while an average sinking of glacier surfaces of 0.6 m per year had been found for the period 1920-1950.

为建立冰川变化的观测记录，本研究延续Richard Finsterwalder于1950年开展的研究工作，于1959年与1969年对东阿尔卑斯山遴选的8条冰川实施摄影测量测绘与成图作业，成图比例尺为1:10000。通过比对1950年、1959年及1969年三次测绘所得的冰面等高线，研究确定了近二十年间冰川表面的高程变化情况。本次研究测得冰川表面年平均高程上升0.1米；而在1920年至1950年的观测时段内，过往研究曾记录到冰川表面年平均高程下降0.6米。