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Weathering in cold environments with special emphasis on polar regions : part II. Landforms

Weathering in cold environments with special emphasis on polar regions : part II. Landforms
Cold area ; Polar region ; Weathering

Weathering in cold environments with special emphasis on polarregions

Weathering in cold environments with special emphasis on polarregions
Cold area ; Freeze-thaw cycle ; Polar region ; Weathering

Sediment budgets and rates of sediment transfer across cold environments in Europe : a commentary

Sediment budgets and rates of sediment transfer across cold environments in Europe : a commentary
Climatic change ; Cold area ; Erosion ; Europe ; Model ; Northern Europe ; Periglacial features ; Permafrost ; Sediment budget ; Sediment transport
The aim of this short paper is to provide a personal commentary on some of the themes discussed in this Special Issue and highlight other key topics and areas of potential future importance : glacial sediment transfer processes; cold-region coastal
processes; cold climate solute dynamics; and the role of cold-tolerant ecosystems in conditioning sediment dynamics.

Summer thaw depths in cold regions and fossil cryoturbation

Summer thaw depths in cold regions and fossil cryoturbation
An analysis of data from the literature, on summer thaw depths and cryoturbation in present-day cold areas, shows that the thickness of fossil cryoturbated deposits cannot be correlated to the July temperature of that time. It is suggested

Coastal dune development in cold-climate environments

Coastal dune development in cold-climate environments
Arctic Region ; Coastal environment ; Cold area ; Dune ; Eolian deflation ; Snow ; Subarctic zone ; Vegetation ; Wind
This paper reviews the occurence and morphology of coastal dunes developed in arctic and subarctic environments. The characteristic features of cold-climate coastal aeolian landforms are discussed, and some consideration is given

Cartographic aspects of geomorphological maps of polar areas

Cartographic aspects of geomorphological maps of polar areas
Cold area ; Geomorphology ; Spitsbergen ; Thematic mapping;Thematic cartography

Relations between aerodynamic and surface roughness in a hyper-arid cold desert : McMurdo dry valleys, Antarctica

Relations between aerodynamic and surface roughness in a hyper-arid cold desert : McMurdo dry valleys, Antarctica
Aeolian features ; Aeolian transport ; Antarctica ; Arid area ; Cold desert ; Roughness
This study examines relations between roughness element geometry and density, and boundary-layer winds in an area with no vegetation, as a contribution to understanding aeolian processes in rocky terrains, such as those occuring in many hyper-arid

Catastrophic implications of global climatic change in the cold regions of Eurasia

Catastrophic implications of global climatic change in the cold regions of Eurasia
Arctic Region ; Catastrophe ; Climatic variation ; Climatic warming ; Cold area ; Eurasia ; Global change ; Greenhouse effect ; Kola Peninsula ; Meltwater ; Permafrost ; Russia ; Sakha ; Thermokarst ; West Siberia
Some models predict that annual air temperatures in the Eurasian cold regions could increase by 3 to 6°C in the years 2020 to 2030. In this paper the A. tries to evaluate the probable catastrophic implications of global climatic change in the cold

The role of thermal stress fatigue in the breakdown of rock in cold regions

The role of thermal stress fatigue in the breakdown of rock in cold regions
Antarctica ; Building materials ; Cold area ; Fracture ; Freeze-thaw cycle ; Geotechnics ; Impact ; Radiation ; Rock ; Temperature ; Weathering
Recent geomorphological studies have shown the importance of thermal stress in cold regions by means of high-frequency rock temperature data which can identify rates of temperature change in excess. The occurence of weathered material in cold

Fungal weathering of basaltic rocks in a cold oceanic environment (Iceland) : comparison between experimental and field observations

Fungal weathering of basaltic rocks in a cold oceanic environment (Iceland) : comparison between experimental and field observations
Basalt ; Biogenic process ; Cold area ; Iceland ; Micro-organism ; Periglacial features ; Weathering
This paper presents evidence for strong biochemical weathering of basaltic outcrops induced by fungal communities in a cold environment. Weathering rind formation is considered to be a consequence of the biological activity. Comparisons between
in vitro experiments and in situ observations allow a characterization of fungal effets on rocks and help to define the place of these micro-organisms in the cold environment weathering chain. It is concluded that biological weathering is chronologically

The mineral composition of hot and cold desert soils

The mineral composition of hot and cold desert soils
Arid area ; Carbonate ; Chemical alteration ; Clay mineral ; Cold desert ; Desert ; Geochemistry ; Mineralogy ; Pedogenesis ; Salinisation ; Weathering
The mineralogy-determining processes in both hot and cold desert soils are similar. The major process is accumulation and profile redistribution of soluble salts. Release of Fe-oxides and their redistribution within the soil matrix is a minor

The allocation of the freeze-thaw weathering mechanism in geocryological studies : a critical comment

Cold areas ; Cryoturbation ; Geomorphology ; Weathering
The widespread claims to freeze-thaw action in cold regions is disputed and a plea for greater care in allocating processes is made. - (AJC)

Weathering in cold regions : some thoughts and perspectives

Weathering in cold regions : some thoughts and perspectives
Bibliography ; Chemical erosion ; Cold area ; Concept ; Freeze-thaw cycle ; Palaeo-environment ; Periglacial features ; Soil moisture ; Weathering ; Zonality
Here a reconsideration of the whole conceptual framework of weathering in cold environments is undertaken. It is shown that, contrary to popular presentations, weathering, including chemical weathering, is not temperature-limited but rather
is limited by moisture availability. Where water is available it is clearly shown that chemical weathering can be a major component of the weathering regime. The argument is made that there is no zonality to cold environment weathering. The assumption
of angularity with weathering in cold regions is questioned.

The minimum temperatures in the winter 2006/07 in Slovenian frost hallows and cold basins

The minimum temperatures in the winter 2006/07 in Slovenian frost hallows and cold basins
Air temperature ; Climatology ; Cold area ; Physical geography ; Slovenia
during the period 2004-2006, continued also in the winter 2006-2007, all together, in more than 30 frost hallows and cold basins Alpine, Dinaridic and even Submediterranean areas. Allthough the winter 2006/2007 was very mild, minimum temperatures in frost
The members of Slovenian Meteorological Forum, Department of Geography at University of Ljubljana and Slovenian Forestry Institute started to measure temperatures in Slovenian frost hallows and cold basins in 2004. The measurements, which improved

Field experiments on physical weathering and wind erosion in an Antarctic cold desert

Field experiments on physical weathering and wind erosion in an Antarctic cold desert
Antarctica ; Cold area ; Cold desert ; Freezing ; Mountain ; Salt ; Surface temperature ; Weathering ; Wind erosion ; Wind speed
Field experiments were carried out over a five year period with the aim of understanding contemporary weathering and erosional environments in the Sør Rondane Mountains, an Antarctic cold desert region. These include observations of 1) scaling from

Rock temperatures and implications for cold region weathering. II : new data from Rothera, Adelaide Island, Antarctica

Rock temperatures and implications for cold region weathering. II : new data from Rothera, Adelaide Island, Antarctica
Adelaide ; Antarctica ; Cold area ; Rock ; Temperature ; Thermal regime ; Weathering

Ice in the shore zone and the geomorphology of cold coasts

Ice in the shore zone and the geomorphology of cold coasts
Arctic Region ; Beaufort Sea ; Canada ; Coastal environment ; Cold area ; Floating ice ; Glacial erosion ; Hydrodynamics ; Ice ; Northwest Territories ; Sea ice ; Thermokarst

Pediments and cold-climate conditions, Barn Mountains, unglaciated Northern Yukon, Canada

Pediments and cold-climate conditions, Barn Mountains, unglaciated Northern Yukon, Canada
Canada ; Cold area ; Earth surface processes ; Pediment ; Periglacial features ; Quaternary ; Slope ; Stratigraphy ; Surface deposits ; Yukon

Global warming and permafrost in Eurasia: a catastrophic scenario

Catastrophe ; Climatic variation ; Climatic warming ; Cold area ; Eurasia ; Global change ; Ice wedge ; Model ; Permafrost ; Yakutia
Since models of global warming predict that climatic changes will be greatest in the Arctic and might already be in progress, it is prudent to attempt to understand the rapidly changing thermal regime on Eurasian cold regions. In this paper
the A. tries to evaluate the probable catastrophic implications of global climatic change in the cold regions of Eurasia. The impact on Man activities in permafrost regions is discussed.

Dark and light lichen coloration and basalt weathering in a cold environment : preliminary results from Northern Canada

Dark and light lichen coloration and basalt weathering in a cold environment : preliminary results from Northern Canada
Basalt ; British Columbia ; Canada ; Cold area ; Lichen ; Rock ; Temperature ; Weathering

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