Titelbild: Starting zone of Kolka/Karmadon rock/ice avalanche in the Russian Caucasus (September 2002) showing Dzhimarai-khokh (4780 m a.s.l.) and the eroded Kolka glacier on the valley bottom (photo: I. Galushkin) I Summary Research on glacial hazards is challenged by current natural and human-induced and-related developments. Climate change strongly influences the dynamics in glacial and peri...

Introduction: Lobate debris aprons (LDA) (Fig. 1) surround steep escarpments such as the walls of isolated plateaus and massifs in the northern and southern mid-latitudes (~30 to 50) on Mars and are Middle to Late Amazonian in age [1]. Much evidence supports the formation of these features by flow of ice and debris in a manner similar to glacial systems on Earth [1-9]. Additional evidence has...

The behaviour of ice sheets and their geologic imprints in fjord regions are often multifaceted. Fjords, which were temporarily occupied by fast flowing ice-streams during major glaciations, and inter-fjord areas, which were covered by less active ice, show different signatures of past glaciations. The land and marine records of glaciations over the western Svalbard fjord region have been exten...

a r t i c l e i n f o a b s t r a c t Keywords: marine oxygen isotope record glacial cycles Pleistocene ice volume global temperature The sequence of feedbacks that characterized 100-kyr glacial cycles of the past million years remains uncertain, hampering an understanding of the interconnections between insolation, ice sheets, greenhouse gas forcing, and climate. Critical to addressing this is...

[1] The ocean thermohaline circulation is important for transports of heat and the carbon cycle.We present results from PMIP2 coupled atmosphere-ocean simulations with four climate models that are also being used for future assessments. These models give very different glacial thermohaline circulations even with comparable circulations for present. An integrated approach using results from thes...

Earth surface processes operate on various spatio-temporal scales and produce landforms that are structured in a nested hierarchical manner. Semi-automated extraction of selected landform types from digital elevation models (DEMs) is of great importance in geomorphology. Object-based image analysis (OBIA) provides an attractive framework for multi-scale terrain segmentation and classification. ...

[1] The Nilosyrtis Mensae region is important among dichotomy boundary fretted terrain outcrops, as it provides evidence of overprinting of ancient landscapes by a suite of glacial features, providing a composite view of the variety of midlatitude glacial modification processes that can occur during recent Martian ice ages. On the basis of a series of criteria developed for the identification o...

Hydrocarbons and glycerol dialkyl glycerol tetraethers (GDGTs) were analyzed in Late Pleistocene sediments of Core HLY0503-08JPC collected at the Mendeleev Ridge during the Healy-Oden Trans Arctic Expedition 2005 (HOTRAX’05) to investigate environmental changes in the western Arctic Ocean during the last full glacial cycle, ca. 130 kyr. Variations in long-chain n-alkane and GDGT concentrations ...

We investigated the large-scale (10–1000m) and small-scale (mm–cm) variations in size, number and arrangement of air bubbles in the EPICA Dronning Maud Land (EDML) (Antarctica) ice core, down to the end of the bubble/hydrate transition (BHT) zone. On the large scale, the bubble number density shows a general correlation with the palaeo-temperature proxy, dO, and the dust concentration, which me...