Effect of climate on morphology and development of sorted circles and polygons

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F17%3A00476303" target="_blank" >RIV/67985530:_____/17:00476303 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/17:10363796
Result on the web
<a href="http://dx.doi.org/10.1002/ppp.1949" target="_blank" >http://dx.doi.org/10.1002/ppp.1949</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ppp.1949" target="_blank" >10.1002/ppp.1949</a>

Result language
angličtina
Original language name
Effect of climate on morphology and development of sorted circles and polygons
Original language description
Sorted circles and polygons are widespread features of periglacial landscapes, but the controls on their development remain poorly understood, impeding their use as palaeoenvironmental indicators. We investigate the relationship of sorted circles and polygons to altitude in the northern Billefjorden area, central Svalbard. The patterns occur in two distinct elevation zones, below 200-250m asl and above 600m asl. The higher-elevated patterns have smaller diameters and shallower sorting depths due to a thinner active layer at higher elevations, suggesting that sorted patterns can indicate climate conditions and ground thermal state when the patterns initiated. Geology is believed to be of less importance for pattern morphology in the study area, causing only its fine-scale variations. The pattern diameter-to-sorting depth ratios have a median value of 3.57, consistent with previous studies and theoretical models of patterned-ground formation involving circulation mechanisms. Large-scale sorted patterns may develop over centennial timescales in this high-Arctic environment. They are probably not in equilibrium with present-day climate conditions and have probably formed throughout the Holocene.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10508 - Physical geography

Project
<a href="/en/project/GA17-21612S" target="_blank" >GA17-21612S: Patterned ground development and its implications for the Quaternary environment in central Europe</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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