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Palsa

Definition of the noun Palsa

What does Palsa mean as a name of something?

noun

  1. [geomorphology] A mound similar to pingo but much smaller size.

Explanation

Palsa: Palsas are low, often oval, frost heaves occurring in polar and subpolar climates, which contain permanently frozen ice lenses. Like pingos, palsas consist of an ice core with overlying soil, but they are generally smaller than pingos, often occur in groups and may develop from ground water without additional hydrostatic pressure. Palsas are characteristically found in areas with discontinuous permafrost, and in such areas they may be the only reliable surface evidence of permafrost. Palsas need large quantities of water for the formation of their ice lenses, and for this reason they occur particularly in bogs.

Printed dictionaries and other books with definitions for Palsa

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Google previewFundamentals of Geomorphology (2016)

by Richard John Huggett

A palsa is a low peat hill, commonly conical or dome-shaped, standing some 1– 10 m high and having a diameter of 10–50 m. Palsas (or palsen) have a core of frozen peat or silt (or both), small ice crystals, and a multitude of segregated thin ...

Google previewPeriglacial Processes and Landforms in Britain and Ireland (2011)

by John Boardman

Palsas are the most typical permafrost features in northern regions with mean annual air temperature less than — 1 "C. A palsa is a permafrost cored peat hummock rising from a mire (Seppala, 1 972c t. The diameter of palsas range from a few ...

Google previewThe Periglacial Environment (2013)

by Hugh M. French

Palsas. A palsa is a peaty permafrost mound containing a core of ...

Google previewGeomorphology and Global Environmental Change (2009)

by Olav Slaymaker, Christine Embleton-Hamann

Palsas as geoindicators of climate changes in subarctic regions Originally used by the Sami People and Finns, the term palsa means a perennial frost mound with a core made of alternating layers of segregation ice and mineral soil material , ...

Google previewLandforms of the Earth (2016)

An Illustrated Guide by Francisco Gutiérrez, Mateo Gutiérrez

Palsa is a Fennoscandian term that describes mounds or ridges of peat protruding from flat boggy areas within the discontinuous permafrost zone. In contrast to pingos, they have a permanent frozen core of peat and/or fine-grained sediment ...

Google previewThis Land (2006)

A Guide to Central National Forests by Robert H. Mohlenbrock

A palsa is a peat- covered mound over a core of permafrost. Botanists from the Rocky Mountain Research Station note that the overlying peat acts as an insulating blanket over the frozen core.The permafrost core exists up to 18 inches below ...

Google previewAn Introduction to Frozen Ground Engineering (2013)

by Orlando B. Andersland, B. Ladanyi

Palsa is a round or elongated mound, maximum height of about 10 m, composed of a peat layer overlying mineral soil. It has a perennially frozen core that extends from within the covering peat layer downward into or toward the underlying ...

Google previewPermafrost: North American Contribution [to The] Second International Conference (1973)

Palsa is a widely used term for any mound of soil or ...

Google previewVegetation, Water, Humans and the Climate (2012)

A New Perspective on an Interactive System by Pavel Kabat, Martin Claussen, Stacey Whitlock, John H.C. Gash, Lelys Bravo de Guenni, Michel Meybeck, Roger Pielke, Charles J. Vörösmarty, Ronald W.A. Hutjes, Sabine Lütkemeier

By some estimates (Pomeroy * Palsa is a type of ...

Google previewEncyclopedia of Quaternary Science (2013)

by Scott Elias, Cary Mock

Themore deeplyfrozen peatis frost heaved abovethe surrounding landscape, andinsummer its surfacelayers dry, forming aneffective insulating coverthat limits thedepthof thawandpreserves a frozen corebeneath the palsa. During succeeding ...

Google previewBlackie’s Dictionary of Geography (2000)

by Blackie

The palsa core comprises silt, underlying the peat, which freezes as the surface cold penetrates the bog; as a result, the peat layer is uplifted and domed. palsa Study of pollen grains. palynology An extensive grassy plain in Argentina and ...

Google previewSoil and Environmental Science Dictionary (2001)

by E.G. Gregorich, L. W. Turchenek, M.R. Carter, Denis A. Angers

Palsa growth is due to the build-up of segregated ice mainly in the mineral soil. See peat mound, peat plateau. palse paludal A marsh or swamp environment; the sediments deposited therein. paludien paludiÞcation The process of peat ...

Google previewThe Dictionary of Physical Geography (2013)

by David S. G. Thomas, Andrew S. Goudie

bodden bogaz bogs blanket bursts floating hagg nutrient status ombrotrophic see raised mire palsa paludification string see also mires; ...

Google previewThe Outlines of Materia Medica; Regional Symptomatology, and a Clinical Dictionary (1865)

Goa, Lach, Palsa, Sep. Menorrhagia,--ACON., Aloe, BELL., Ganth, Ghin., Goloc., FERR., 101)., NAT. M., NW, Phosp. Menstruation—(Too early)—Gala, Garb. a, Gham., Ipea, Phosp., Sep. (Bright-red)—BELL., Garb. a, ...

Google previewA Dictionary of Environment and Conservation (2017)

by Michael Allaby, Chris Park

Rim pack ice Palaeoarchaean Palaeocene Palaeogene palaeogeographical map palaeogeography palaeohydrology Palaeoproterozoic Palaeozoic palsa Pangaea panplain Panthalassa parallel drainage pattern Paratethys partial duration ...

Google previewThe Blackwell's Concise Encyclopedia of Ecology (2009)

by Peter P. Calow

palsa mire A tundra mire type, whose name is derived from Finnish, found only within climates where the average air temperature remains at or below 0°C for more than 200 days in the year, roughly corresponding to the southerly limit ...

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Palsa Meaning

Video shows what palsa means. A mound similar to a pingo but much smaller.. Palsa Meaning. How to pronounce, definition audio dictionary. How to say palsa.

Scrabble value of P3A1L1S1A1

The value of this 5-letter word is 7 points, but it's not an accepted word in the Official Scrabble Players Dictionary.

Anagrams of PALSA

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