Suretta Sud Glacier - Servizio Glaciologico Lombardo

More documents

Recommendations

Info

2008 glaciological Survey Mountain sectors and operators (76) SPLUGA-LEI L. Colzani, E. Congiu, M. D’Amico, M. Felisa, S. Losa, B. Mezzera, F. Rossini, C. Scolari, R. Scotti, F. Villa CODERA-MASINO L. Colzani, G. Di Gallo, M. Marzorati, R. Scotti, A. Barilli DISGRAZIA-MALLERO D. Airoldi, A. Almasio, I. Bollati, F. Cambieri, M. Fransci, G. Di Gallo, L. Muchetti, P. Pagliardi, M. E. Peroschi, G. Rovedatti, R. Scotti, M. Urso BERNINA D. Bellingeri, M. Butti, L Colzani, A. Galluccio, D. Gerussi, M. Gianatti, P. Pagliardi, A. Salvetti, R. Scotti, M. Zambenedetti SCALINO-PAINALE M. Butti, E. Benedetti, M .Gianatti DOSDE’-LIVIGNO S. Alberti, A. Bera, G. Cola, D. Colombarolli, L. Colzani, D. De Felice, A. Galluccio, F. Galluccio, M. Gianatti, P. Pagliardi, D. Parrino, S. Ratti, M. Marzorati, R. Scotti, C. Speranza ORTLES-CEVEDALE C. Bessi, L. Bolognini, L. Bonetti, A. Borghi, P. Bottio, R. Bottio, G. Casartelli, G. Catasta, G. Cola, D. Colombarolli, L. Colzani, L. Farinella, M. Fioletti, A. Galluccio, Ac Galluccio, M. Gianatti, E. Meraldi, P. Pagliardi, A. Scaltriti, C. Scolari, R. Scotti; F. Strozzi, M. Zambenedetti ADAMELLO C. Bessi, P. Cinanni, M. Frosio, A. Elli, L. Imberti, G. Lojacono, A. Mussi, V. Paneri, P. Pagliardi, D. Perego, P. Reale, F. Roveda, R. Scotti, A. Toffaletti, M. Zambenedetti OROBIE S. Anghileri, E. Benedetti, R. Bianchi, M. Butti, S. D’Adda, D. Gerussi, M. Gianatti, M .Fransci, F. Locatelli, F. Mocci, D. Perego, L. Pironi, G. Rovedatti, A. Scherini, V. Sciaresa, R. Scotti, A. Sesini, S. Vigani, F. Villa - 22 -
The 2008 Glaciological survey 1 “How did the glaciers fare during the last sum- a slight decrease. Despite the very negative mer?” This is the most frequent question that scenario, this is a slight improvement over the mountain lovers, friends and curious people previous year, when all glaciers had strong to have been asking us since last September. moderate decrements. Curiously, the sectors Such direct and concise question is worth a whose snow cover was better than their his- similarly short and clear answer: “Badly”. Then torical average value in the early summer days the astonished speaker: “But why? A bad sum- were the ones to suffer the worst decrements. mer again? With all the snow that fell down ... What are the explanations and the bad weather we have had …” At this for such a negative season? point, it is worth to analyse in depth a season The answer has implicitly been outlined in that, despite the very negative result, has the snow-meteorological report already. shown some shy signals of a recovery if com- Despite an amount of precipitation in line pared to the glaciological disasters of the past with the average value for the season, few years. The differences among the various thanks mainly to the April-May period, the mountain sectors of Lombardy, almost zeroed snow did not last until the end of the sea- during the last years because of very negative son; such result is a consequence of the dynamic indexes everywhere, this year have high temperature of the summer months. become visible again. So, it is clear that the The thickness reduction of the glacier’s fronts western sectors have fared better than the was comparable to that of previous years; the eastern ones: the Spluga/Lej, Codera/Masino, frequent May precipitations probably led to a net Disgrazia, Orobic Alps, though undergoing a differentiation between the upper basins, well negative season, have ended with some re- fed by snowfalls, and their rain-washed termini. sidual snow coverage over all apparatuses. By the end of July, the residual snow had Photographic observations and field surveys disappeared almost everywhere under 3200 proved that some small glaciers had an almost m a.s.l., letting the hot August and early positive season: the best examples are: Mor- September days to melt down the exposed tee, Calvo, Rasica Est, Cassandra Centrale, ice and, where present, most of the residual Dente di Coca and Pizzo dell’Omo Ovest. Un- snow. Locally, the snow cover lasted till the fortunately all are very small apparatuses; their end of the season above 3300 m a.s.l. and on combined size being only 2% that of the Ad- some glaciers with avalanche accumulation. amello <strong>Glacier</strong> which, on the other side, had a The SGL Glaciological Survey, though delayed heavily negative season. For the same reason, by the abundant snowfall of mid-September, all glaciers belonging to the SGL sample list has nevertheless produced meaningful data, showed a negative trend versus the 2007 situ- having investigated 95,4% of the glacialized ation. The 47 glaciers of the sample were cho- surface of the Region. The most important sen for their size and for being representative results are the largely negative mass bal- of their own sectors. 23,4% of them showed a ances and the investigation of morphologies dynamic index pointing to a strong decrease, peculiar to a phase of glacial dissolution: the 59,4% to a moderate decrease and 19,2% to deep bédières (Campo Nord), the ever wider 1 For the survey methodology see www.sgl.cluster.it - 23 - 2008 glaciological Survey
Page 1 and 2: Servizio Glaciologico Lombardo Terr
Page 3 and 4: INDEX Editorial 4 Snow-meteorologic
Page 5: down of the current regression tren
Page 8 and 9: snow-meteo report A summary of the
Page 10 and 11: snow-meteo report Continuing a posi
Page 12 and 13: snow-meteo report stop, of all melt
Page 14 and 15: snow-meteo report Fig. 5: Sils stat
Page 16 and 17: snow-meteo report The meteorologica
Page 18 and 19: snow-meteo report Consistent avalan
Page 20 and 21: snow-meteo report - 20 -
Page 24 and 25: 2008 glaciological Survey moraine c
Page 26 and 27: 2008 glaciological Survey ANALYSIS
Page 28 and 29: 2008 glaciological Survey Tab. 5: t
Page 30 and 31: 2008 glaciological Survey Variation
Page 32 and 33: 2008 glaciological Survey Tab. 7: L
Page 34 and 35: 2008 glaciological Survey The termi
Page 36 and 37: 2008 glaciological Survey MOST SIGN
Page 38 and 39: 2008 glaciological Survey The,Sisso
Page 40 and 41: 2008 glaciological Survey The West
Page 42 and 43: 2008 glaciological Survey A 20-year
Page 44 and 45: 2008 glaciological Survey The Vitel
Page 46 and 47: 2008 glaciological Survey The Pian
Page 48 and 49: 2008 glaciological Survey The Vedre
Page 50 and 51: MASS BALANCES Suretta Sud Glacier L
Page 52 and 53: mass balance • Socket GPS receive
Page 54 and 55: mass balance • • • • proces
Page 56 and 57: mass balance was once again negativ
Page 58 and 59: mass balance On May 27, 2006 a ther
Page 60 and 61: mass balance Alpe Sud Glacier at Mo
Page 62: mass balance DETAILS OF THE METEORO
Page 65 and 66: Terra glacialis Edizione speciale /
Page 67 and 68: ANNO X-N° 10 Editoriale / Editoria
Page 69 and 70: ANNO VIII-N°8 Editoriale / Editori
Page 71 and 72: ANNO VI-N°6 Editoriale / Editorial
Page 73 and 74:
ANNO IV-N°4 GALLUCCIO A, COLA G. -
Page 75 and 76:
ANNO II-N°2 ARZUFFI A.- Editoriale
show all

Suretta Sud Glacier - Servizio Glaciologico Lombardo

Create successful ePaper yourself

Delete template?

Save as template?