Nigrelli G., Lucchesi S., Bertotto S., Fioraso G., Chiarle M., 2014, Climate variability and Alpine glaciers evolution in Northwestern Italy from the Little Ice Age to the 2010s, Theoretical and applied climatology 122 (2014): 595–608. doi_10.1007/s00704-014-1313-x,
URL: http://www.cnr.it/prodotto/i/288615

In this work, we analyze climate variability and glacier evolution for a study area in the Northwestern Italian Alps from the Little Ice Age (LIA) to the 2010s. In this area, glacier retreat has been almost continuous since the end of the LIA, and many glaciers are now extinct. We compared glaciological and climatic data in order to evaluate the sensitivity of glaciers to temperature and precipitation trends. We found that temperatures show significant warming trends, while precipitation shows no clear signal. After the 1980s, the total number of positive trends in temperature increased, particularly minimum temperature. The latter does not seem to be the only cause of glacier shrinkage but rather on acceleration of an ongoing trend documented since the end of the LIA. In some rare cases, the effects of warming trends on glacier dynamics have been accentuated by a concomitant decrease in precipitation. We hope that this study will contribute to increase the knowledge of the relationships between climate variation and glacier evolution in the Greater Alpine Region.

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