Late Holocene evolution of glaciers in the southeastern Alps

Colucci, Renato R.; Žebre, Manja

doi:10.1080/17445647.2016.1203216

Cited by 37 publications

(44 citation statements)

References 28 publications

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“…According to Colucci et al (2016b) relict rock glaciers, distributed between 1,708 and 1,846 m a.s.l., cover an area of 3.45 km 2 and were likely active during the Lateglacial developing during different periods of the Holocene. The Little Ice Age (LIA) maximum extent of glaciers was estimated to 2.35 km 2 (Colucci, 2016) with a volume equal to 0.068 km 3 (Colucci & Žebre, 2016). At present (2012) the volume is reduced by 96% and equals 0.0027 km 3 .…”

Section: Study Areamentioning

confidence: 99%

“…The topographic base of the Main Map at a scale of 1:150,000 is composed of a 10 m resolution DTM (RAFVG, 2006(RAFVG, -2009) and a 12.5 m resolution DTM (Surveying and Mapping Authority of the Republic of Slovenia, 2001Slovenia, -2005, portrayed with a background shaded relief map (see Main Map). The hydrography, comprising water courses of 1st, 2nd, 3rd and 4th order, the most important mountain peaks, the extent of glaciers and ice patches at the Little Ice Age peak and in 2012 (Colucci & Žebre, 2016) and the main towns are also shown. The coordinate system of the Main Map is WGS_1984_UTM_Zone_33N.…”

Section: Topographic Basementioning

confidence: 99%

“…On the other hand the onset and decay of rock glaciers have been related to the Younger Dryas (YD) cold phase event and the subsequent climate amelioration of the early Holocene (Colucci et al, 2016b). However, this description lacks the real size in terms of ice volume and water content which are instead known for glaciers at the LIA peak (Colucci & Žebre, 2016) but still unknown for the Lateglacial phases.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the same areas of both countries have been recently surveyed by several authors and with different purposes, in order to map and rise knowledge about the coastal areas (Biolchi, Furlani, Covelli, Busetti, & Cucchi, 2016), the Classical Karst region (Jurkovšek et al, 2016), the hydrogeological functioning of the alluvial plain (Treu et al, 2017) as well as the sinkhole occurrence and analysis (Calligaris, Devoto, & Zini, 2017). Glacial features and morphologies were already mapped by Colucci and Žebre (2016) and Žebre and Stepišnik (2016), therefore this work is part of an extensive effort aiming for a better understanding of environments and landscapes of this transboundary European area.…”

Section: Introductionmentioning

confidence: 99%

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Geometry and paleo-ice content of rock glaciers in the southeastern Alps (NE Italy – NW Slovenia)

Boccali

Žebre

Colucci³

2019

Journal of Maps

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Rock glaciers in the southeastern Alps of Slovenia and Italy have been mapped in detail using high resolution digital elevation model and orthophotos, supported by field-based observations. A total of 52 rock glaciers with an area of 3.40 km 2 have been delineated on a rock glacier map, divided in 18 sections at a scale of 1:15,000. Several geometrical parameters of rock glaciers have been calculated and their activity degree has been inferred. 90% of rock glaciers have been classified as relict, while the rest are assumed to be of uncertain activity and might still contain some ice. The volumetric ice content and water volume equivalent of the studied rock glaciers for the period of their activity has been calculated to 0.055 ± 0.011 km 3 and 0.049 ± 0.010 km 3 , respectively, which is very close to the ice volume of glaciers reconstructed for this area during the little ice age to 0.069 km 3 .

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Section: Study Areamentioning

confidence: 99%

Section: Topographic Basementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Geometry and paleo-ice content of rock glaciers in the southeastern Alps (NE Italy – NW Slovenia)

Boccali

Žebre

Colucci³

2019

Journal of Maps

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“…Though the pattern of glacial dynamics after the LIA maximum is relatively well known in several humid areas (the Alpes [16,18,19], Scandinavia [20][21][22] etc.) there is still less information about the arid intracontinental areas, which are usually remote sensing and paleoreconstructions ( [14,[23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Present Glaciers of Tavan Bogd Mountain Massif and Their Changes Since the LIA

Ganyushkin¹,

Chistyakov²,

Volkov³

et al. 2018

Preprint

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The study is based on the results of long-term field studies, satellite and aerial data analysis. In the maximum of the Little Ice Age (LIA) 243 glaciers with a total area of 353.4 km2 were reconstructed. By the results of interpretation of Corona images by 1968 the number of glaciers increased (236), the total area reduced to 242 km2. In 2010 glaciation was represented by 237 glaciers with a total area of 201 km2. Thus, from the maximum of the LIA, the glaciation of the Tavan-Bogd mountains decreased by 43%, which is somewhat less than the neighboring glacial centers (Ikh-Turgen, Tsambagarav, Tsengel-Khayrkhan and Mongun-Taiga mountains). The probable cause is the predominance of larger glaciers relatively resistant to warming and higher altitudes. The effect of glacier size on their stability is supported by differences in the relative shrinkage of glaciers in different parts of the Tavan-Bogdo-Ola massif: the smallest decline occurred in the basins of the Tsagan-Gol (31.7%) and Sangadir (36.4%) rivers where the largest glaciers are located. On the contrary, on the lower periphery of the massif, where small glaciers predominate, the relative reduction was large (74-79%). On the background of the general retreat trend large valleys glaciers retreated faster in 1968-1977 and after 2010. In 1990-s the retreat was slow. After 2010 the glacial retreat was extremely fast. The retreat of glaciers in the last 50-60 years was caused by a trend towards a decrease in the amount of precipitation until the mid-1970s and a sharp warming in the 1990s and early 2000s.

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