Analysis of the mass balance time series of glaciers in the Italian Alps
| Autor: | Carturan L[1, Baroni C.[2, 3, Brunetti M.[4], Carton A.[5, Dalla Fontana G.[1, Salvatore M.C.[2, 6] Zanoner T.[5, 6, 7] Zuecco G. [1] |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Water Science and Technology
Earth-Surface Processes 010504 meteorology & atmospheric sciences Observation period precipitation variability 010502 geochemistry & geophysics Atmospheric sciences 01 natural sciences European alps Swiss Alps North-Atlantic Oscillation Precipitation French Alps lcsh:Environmental sciences 0105 earth and related environmental sciences Hydrology lcsh:GE1-350 geography Series (stratigraphy) Extinction geography.geographical_feature_category Lead (sea ice) lcsh:QE1-996.5 Elevation Glacier Glacier mass balance Ortles-Cevedale Group climate-change Alpine lcsh:Geology 6 decades climate change precipitation variability surface elevation Environmental science north Atlantic oscillation |
| Zdroj: | The Cryosphere, Vol 10, Iss 2, Pp 695-712 (2016) The cryosphere (Online) 10 (2016): 695–712. doi:10.5194/tc-10-695-2016 info:cnr-pdr/source/autori:Carturan L[1,6], Baroni C.[2,3,6], Brunetti M.[4], Carton A.[5,6], Dalla Fontana G.[1,6], Salvatore M.C.[2,6] Zanoner T.[5,6,7] Zuecco G. [1]/titolo:Analysis of the mass balance time series of glaciers in the Italian Alps./doi:10.5194%2Ftc-10-695-2016/rivista:The cryosphere (Online)/anno:2016/pagina_da:695/pagina_a:712/intervallo_pagine:695–712/volume:10 |
| ISSN: | 1994-0424 |
| DOI: | 10.5194/tc-10-695-2016 |
| Popis: | This work presents an analysis of the mass balance series of nine Italian glaciers, which were selected based on the length, continuity and reliability of observations. All glaciers experienced mass loss in the observation period, which is variable for the different glaciers and ranges between 10 and 47 years. The longest series display increasing mass loss rates, which were mainly due to increased ablation during longer and warmer ablation seasons. The mean annual mass balance (Ba) in the decade from 2004 to 2013 ranged from −1788 to −763 mm w.e. yr−1. Low-altitude glaciers with low range of elevation are more out of balance than the higher, larger and steeper glaciers, which maintain residual accumulation areas in their upper reaches. The response of glaciers is mainly controlled by the combination of October–May precipitations and June–September temperatures, but rapid geometric adjustments and atmospheric changes lead to modifications in their response to climatic variations. In particular, a decreasing correlation of Ba with the June–September temperatures and an increasing correlation with October–May precipitations are observed for some glaciers. In addition, the October–May temperatures tend to become significantly correlated with Ba, possibly indicating a decrease in the fraction of solid precipitation, and/or increased ablation, during the accumulation season. Because most of the monitored glaciers have no more accumulation area, their observations series are at risk due to their impending extinction, thus requiring a replacement soon. |
| Databáze: | OpenAIRE |
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