J 2017

Active layer monitoring at CALM-S site near J.G.Mendel Station, James Ross Island, eastern Antarctic Peninsula

HRBÁČEK, Filip, Michaela KŇAŽKOVÁ, Daniel NÝVLT, Kamil LÁSKA, Carsten W MUELLER et. al.

Basic information

Original name

Active layer monitoring at CALM-S site near J.G.Mendel Station, James Ross Island, eastern Antarctic Peninsula

Authors

HRBÁČEK, Filip (203 Czech Republic, belonging to the institution), Michaela KŇAŽKOVÁ (703 Slovakia, belonging to the institution), Daniel NÝVLT (203 Czech Republic, belonging to the institution), Kamil LÁSKA (203 Czech Republic, belonging to the institution), Carsten W MUELLER (276 Germany) and Jakub ONDRUCH (203 Czech Republic, belonging to the institution)

Edition

Science of the Total Environment, Amsterdam, ELSEVIER SCIENCE BV, 2017, 0048-9697

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10508 Physical geography

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 4.610

RIV identification code

RIV/00216224:14310/17:00097070

Organization unit

Faculty of Science

UT WoS

000406294900097

Keywords in English

Active layer thickness; Ground thermal regime; Permafrost; CALM-S; Antarctic Peninsula; Climate

Tags

Tags

International impact, Reviewed
Změněno: 20/2/2019 17:48, Mgr. Filip Hrbáček, Ph.D.

Abstract

V originále

Circumpolar Active Layer Monitoring – South (CALM-S) site was established in February 2014 on James Ross Island as the first CALM-S site in the eastern Antarctic Peninsula region. The site located near the Johann Gregor Mendel Station is labelled CALM-S JGM. The grid area is gently sloped ¬< 3° and elevated between 8 to 11 m a.s.l. Lithology of the site is formed by more muddy sediments of Holocene marine terrace and clayey sandy Cretaceous sedimentary rocks, which significantly affect texture, moisture content and physical parameters of the ground on the grid. Our objective was to study seasonal and interannual variability of active layer depth and thermal regime on CALM-S site and at two ground temperature measurement profiles AWS-JGM and AWS-CALM located in the grid. Average air temperature in the period March 2013 to February 2016 reached -6.8 °C. Average ground temperature decreased with depth from -5.1 °C to -5.3 °C at 5 cm to -5.5 °C to -5.9 °C at 200 cm. Active layer thickness defined as the depth of 0 °C isotherm was significantly higher at AWS-CALM between 86 cm (2014/15) and 87 cm (2015/16), while at AWS-JGM reached only 51 cm (2013/14) to 65 cm (2015/16). Mean probed active layer depth increased from 66.4 cm in 2013/14 to 78.0 cm in 2014/15. High differences were observed when compared minimum (51 cm to 59 cm) and maximum (100 cm to 113 cm) probed depth. The distribution of active layer depth at CALM-S JGM clearly shows the effect of different lithological properties between the two lithologically distinct parts of the grid.

Links

LM2015078, research and development project
Name: Česká polární výzkumná infrastruktura (Acronym: CzechPolar2)
Investor: Ministry of Education, Youth and Sports of the CR
MUNI/A/1419/2016, interní kód MU
Name: Integrovaný výzkum environmentálních změn v krajinné sféře Země II
Investor: Masaryk University, Category A