Influence of glacier advance on the development of the multipart Riffeltal rock glacier, Central Austrian Alps

2015 ◽  
Vol 40 (7) ◽  
pp. 965-980 ◽  
Author(s):  
Jana-Marie Dusik ◽  
Matthias Leopold ◽  
Tobias Heckmann ◽  
Florian Haas ◽  
Ludwig Hilger ◽  
...  
Keyword(s):  
Rock Glacier ◽  
Austrian Alps ◽  
Glacier Advance

scholarly journals The first consistent inventory of rock glaciers and their hydrological catchments of the Austrian Alps

2020 ◽  
Vol 113 (1) ◽  
pp. 1-23 ◽  
Author(s):  
Thomas Wagner ◽  
Roswitha Pleschberger ◽  
Simon Kainz ◽  
Markus Ribis ◽  
Andreas Kellerer-Pirklbauer ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Methodological Approach ◽  
Shallow Aquifer ◽  
Rock Glacier ◽  
Austrian Alps ◽  
Crystalline Bedrock ◽  
Aquifer Systems ◽  
Catchment Areas ◽  
Rock Glaciers ◽  
Alpine Catchments

AbstractA first consistent and homogenized polygon-based inventory of rock glaciers of the Austrian Alps is presented. Compiling previous inventories and updating them by using digital elevation models (1 m grid resolution) derived from airborne laser scanning yield a dataset of 5769 rock glaciers in a ca. 48400 km2 large area. A consistent methodological approach for assigning attributes, stored in a detailed attribute table, was developed and applied here to improve comparability and reproducibility. The majority (60 %) of the studied landforms is considered to be relict (no permafrost); the remaining 40 % may still contain permafrost ice and are thus classified as intact. Rock glaciers range in elevation from 476 to 3312 m a.s.l. and cover a total area of 303 km2. The distribution of rock glaciers is mainly related to the topography of the Austrian Alps and related effects such as past glaciation history.In addition, a comprehensive analysis of the hydrological catchment areas of all individual rock glaciers was carried out. A hydrological catchment analysis in rock glacier areas is of great interest for sustainable water management issues in alpine catchments as these landforms represent shallow aquifer systems with a relatively high storage and thus buffer capability, especially in crystalline bedrock areas. A total area of almost 1280 km2 is drained through rock glaciers.The presented rock glacier and rock glacier catchment inventories provide an important basis for further research, particularly for a better understanding of the hydrogeology and geomorphology of alpine catchments and their potential alteration in the light of climate change, but also in terms of paleoglaciation and deglaciation in the Alpine Lateglacial to Holocene period. As such, the inventories are seen as an important base to stimulate further research.

scholarly journals Climate variability and glacier reaction in the Austrian eastern Alps

2000 ◽  
Vol 31 ◽  
pp. 31-38 ◽  
Author(s):  
Wolfgang Schöner ◽  
Ingeborg Auer ◽  
Reinhard Böhm
Keyword(s):  
Mass Balance ◽  
Sunshine Duration ◽  
Eastern Alps ◽  
Glacier Mass Balance ◽  
Positive Mass ◽  
Precipitation Regime ◽  
Austrian Alps ◽  
Circulation Mode ◽  
Highly Correlated ◽  
Glacier Advance

AbstractA carefully homogenized climate dataset is used to interpret glacier behaviour in the Austrian Alps. Periods of glacier advance are generally more maritime and cooler, with reduced sunshine duration and increased precipitation sum during the ablation period. Periods of retreat are associated with a more continental, warmer climate, with increased sunshine duration and reduced precipitation sum. Three recent sub-periods of Austrian glacier behaviour are documented by direct measurement of glacier mass balance (before 1965 more negative; 1965–81 more positive; since 1982 more negative). A long-term mass-balance series in the eastern part of the Austrian Alps parameterized by snow-depth measurements indicates very clearly that periods of more negative mass balance have a higher correlation to summer air temperature and a lower correlation to winter accumulation. Periods of more positive mass balance are highly correlated to winter accumulation and only slightly correlated to summer temperature. The positive mass-balance period 1965–81 is also characterized by negative North Atlantic Oscillation index values which caused an increased meridional circulation mode, resulting in a northwesterly to northerly precipitation regime during winter.

Une forme montagnarde : le rock-glacier

1972 ◽  
Vol 60 (3) ◽  
pp. 467-487 ◽  
Author(s):  
Victoria Guiter
Keyword(s):  
Rock Glacier

ALPINE GLACIER ADVANCE DURING MIS 11 IN THE MCMURDO DRY VALLEYS, ANTARCTICA

2016 ◽  
Author(s):  
Kate M. Swanger ◽  
◽  
Joerg M. Schaefer ◽  
Gisela Winckler
Keyword(s):  
Mcmurdo Dry Valleys ◽  
Dry Valleys ◽  
Alpine Glacier ◽  
Glacier Advance

scholarly journals A Lacustrine Glacier Retreat Sequence from the Permo-Carboniferous Dwyka Formation, Republic of South Africa

1983 ◽  
Vol 29 (103) ◽  
pp. 515-520
Author(s):  
J. N. J. Visser
Keyword(s):  
South Africa ◽  
Lacustrine Sediments ◽  
Glacier Retreat ◽  
Marine Transgression ◽  
Northern Margin ◽  
Valley Fill ◽  
Karoo Basin ◽  
Ice Retreat ◽  
Glacier Advance

Abstract The upper part of a Permo-Carboniferous glacial valley fill along the northern margin of the Karoo Basin includes glacio-lacustrine sediments. During the last glacier advance into the lake, a bedded heterogeneous diamictite facies was deposited and, on glacier retreat, a sequence of deformed siltstones with diamictite lenses and sandstone beds, varved shale and rhythmite shale was laid down. Black carbonaceous mud was deposited during the subsequent marine transgression. According to varve counts, the glacier receded from the valley over a period of 500 to 1 000 years and it is concluded that the overall ice-retreat rate during the Permo-Carboniferous deglaciation was relatively high.

scholarly journals Relicts from Glacial Times: The Ground Beetle Pterostichus adstrictus Eschscholtz, 1823 (Coleoptera: Carabidae) in the Austrian Alps

Insects ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 84
Author(s):  
Wolfgang Paill ◽  
Stephan Koblmüller ◽  
Thomas Friess ◽  
Barbara-Amina Gereben-Krenn ◽  
Christian Mairhuber ◽  
...  
Keyword(s):  
Ground Beetle ◽  
Distribution Patterns ◽  
Morphological Characters ◽  
Molecular Data ◽  
Ice Age ◽  
Dispersal Ability ◽  
Austrian Alps ◽  
Alpine Regions ◽  
Extant Species ◽  
Limited Dispersal

The last ice age considerably influenced distribution patterns of extant species of plants and animals, with some of them now inhabiting disjunct areas in the subarctic/arctic and alpine regions. This arctic-alpine distribution is characteristic for many cold-adapted species with a limited dispersal ability and can be found in many invertebrate taxa, including ground beetles. The ground beetle Pterostichus adstrictus Eschscholtz, 1823 of the subgenus Bothriopterus was previously known to have a holarctic-circumpolar distribution, in Europe reaching its southern borders in Wales and southern Scandinavia. Here, we report the first findings of this species from the Austrian Ötztal Alps, representing also the southernmost edge of its currently known distribution, confirmed by the comparison of morphological characters to other Bothriopterus species and DNA barcoding data. Molecular data revealed a separation of the Austrian and Finish specimens with limited to no gene flow at all. Furthermore, we present the first data on habitat preference and seasonality of P. adstrictus in the Austrian Alps.

Changes of rock glacier vegetation in 25 years of climate warming in the Italian Alps

CATENA ◽  
2021 ◽  
Vol 206 ◽  
pp. 105562
Author(s):  
Nicoletta Cannone ◽  
Silvia Piccinelli
Keyword(s):  
Climate Warming ◽  
Italian Alps ◽  
Rock Glacier
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