ABSTRACT. We describe changes in glaciers of

ABSTRACT. We investigated glacier changes in the). This very high shrinkage rate is likely connected with a general trend of increasing temperatures, and small glaciers being situated at the relatively low altitude of the outer Zhetysu Alatau ranges. We also analyzed the shrinkage rate of glaciers based on their differences in size, altitude and aspect of slopes, as well as other topographic parameters, in four sub-basins where glacier shrinkage varied between 18% and 39%. Weather-station climate data showed a significant temperature increase and stable precipitation trends over the study period. We conclude that glacierized areas of the Karatal river basin are located in the most unfavorable conditions for glaciation, and as a result showed a higher shrinkage rate than other glacierized areas of the Tien Shan from 1956 to 2012.

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 159  Лёд и Снег · 2018 · Т. 58 · № 2Ушёл из жизни Евгений Николаевич Вилесов -один из старейших гляциологов Республики Казахстан, активный член Гляциологической ассоциации. В последние годы он преподавал в Казахском Национальном университете им. аль-Фараби (Алматы), но продолжал гляциологические исследования и опубликовал несколько монографий о ледниках Казахстана. Совсем недавно Евгений Николаевич прислал для публикации нашего журнала свою статью, которая оказалась последней в его творчестве. Мы публикуем эту статью, доработанную Г.А. Носенко. Keywords: ablation, accumulation, glacial runoff, glacier dynamics, inventory of glaciers, Kazakhstan, mass balance. SummaryIn 1960-70s, a complete Inventory of the Kazakhstan glaciers had been prepared in the framework of the All-Union Glacier Inventory Program. All the morphometric parameters of the glaciers together with area and linear dimensions of them, and the absolute heights of characteristic points were determined from the 1:100 000 scale topographic maps and aerial photography of [1955][1956]. In the late 1970-s and in 1990, new inventories of glaciers of the Zailiysky and Dzungarian Alatau were prepared by the same procedure from the 1:25 000 scale topographic maps and aerial photography. Since the beginning of the 20 th century, satellite images and GIS technologies were used for this purpose. In this work, the magnitudes and rate of changes in the number of glaciers, their areas and volumes, as well as their mass balance for 60 years were obtained using data from different inventories. It was found that during the period under investigation the area of glaciation of Kazakhstan decreased from 1744.8 down to 1032.1 km 2 , i.е. by 712.7 km 2 . The relative decrease in the area of ice was 40.8% (0,68% per a year). The largest losses of the glacier areas took place on the northern slopes of the Zailiysky and Dzungarsky Alatau -124.8 and 121.6 km 2 , respectively. The volume of ice decreased by more than 30 km 3 (42.5%). The loss of the ice mass over the whole glacier area is approximately equal to 20 m in the water equivalent. Data on the glacier degradation in Kazakhstan obtained over the past 60 years provide the basis for monitoring of future glacier changes under conditions of the present-day climate.Citation: Vilesov Е.N. Changes in the size and condition of the glaciers in Kazakhstan for the last 60 years .

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