𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Evidence of recent changes in global snow and ice cover

✍ Scribed by R. G. Barry

Publisher
Springer Netherlands
Year
1990
Tongue
English
Weight
687 KB
Volume
20
Category
Article
ISSN
0343-2521

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✦ Synopsis

Data on recent variations in the seasonal extent of snow cover and sea ice, of the terminal position and volume of alpine glaciers, and of ground temperature profiles in permafrost areas are reviewed. The extent of seasonal snow cover and of sea ice has fluctuated irregularly over the last 15-20 years. There is no apparent response to global warming trends. In contrast, most glaciers retreated and thinned from the late 19th century until the 1960s and Alaskan permafrost temperatures have risen 2Β°-4 Β° C per century. Recently, some glacier advances have been noted.

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