PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F21%3A00541618" target="_blank" >RIV/67985530:_____/21:00541618 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/21:10433410 RIV/00216224:14310/21:00122894

Result on the web

<a href="https://gmd.copernicus.org/articles/14/1865/2021/" target="_blank" >https://gmd.copernicus.org/articles/14/1865/2021/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/gmd-14-1865-2021" target="_blank" >10.5194/gmd-14-1865-2021</a>

Result language

angličtina

Original language name

PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions

Original language description

Periglacial features, such as various kinds of patterned ground, cryoturbations, frost wedges, solifluction structures, and blockfields, are among the most common relics of cold climate periods, which repetitively occurred throughout the Quaternary. As such, they are widespread archives of past environmental conditions. Climate controls on the development of most periglacial features, however, remain poorly known, and thus empirical palaeo-climate reconstructions based on them have limited validity. This study presents and evaluates a simple new inverse modelling scheme called PERICLIMv1.0 (PERIglacial CLIMate) that derives palaeo-air temperature characteristics related to the palaeo-active-layer thickness, which can be recognized using many relict periglacial features found in past permafrost regions. The evaluation against modern temperature records showed that the model reproduces air temperature characteristics with average errors <= 1.3 degrees C. The past mean annual air temperature modelled experimentally for two sites in the Czech Republic hosting relict cryoturbation structures was between -7.0 +/- 1.9 and -3.2 +/- 1.5 degrees C, which is well in line with earlier reconstructions utilizing various palaeo-archives. These initial results are promising and suggest that the model could become a useful tool for reconstructing Quaternary palaeo-environments across vast areas of mid-latitudes and low latitudes where relict periglacial assemblages frequently occur, but their full potential remains to be exploited.

Czech name

—

Czech description

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Type

J_imp - 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

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geoscientific Model Development

ISSN

1991-959X

e-ISSN

1991-9603

Volume of the periodical

14

Issue of the periodical within the volume

4

Country of publishing house

DE - GERMANY

Number of pages

20

Pages from-to

1865-1884

UT code for WoS article

000638995900001

EID of the result in the Scopus database

2-s2.0-85103770270