Interannual variability of soil thermal conductivity and
moisture on the Abernethy Flats (James Ross Island) during
thawing seasons 2015-2023

J 2024

Interannual variability of soil thermal conductivity and moisture on the Abernethy Flats (James Ross Island) during thawing seasons 2015-2023

KŇAŽKOVÁ, Michaela and Filip HRBÁČEK

Basic information

Original name

Interannual variability of soil thermal conductivity and moisture on the Abernethy Flats (James Ross Island) during thawing seasons 2015-2023

Authors

KŇAŽKOVÁ, Michaela (703 Slovakia, guarantor, belonging to the institution) and Filip HRBÁČEK (203 Czech Republic, belonging to the institution)

Edition

Catena, Elsevier Science, 2024, 0341-8162

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10510 Climatic research

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 6.200 in 2022

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.catena.2023.107640

UT WoS

001156721700001

Keywords in English

Soil thermal properties; Soil thermal properties; Soil thermal regime; Soil thermal regime; Active layer thickness; Active layer thickness; Antarctic Peninsula; Antarctic Peninsula; Climate change; Climate change

Abstract

V originále

The knowledge of soil thermal properties is important for determining how a soil will behave under changing climate conditions, especially in the sensitive environment of permafrost affected soils. This paper represents the first complex study of the interplay between the different parameters affecting soil thermal conductivity of soils in Antarctica. Antarctic Peninsula is currently the most rapidly warming region of the whole Antarctica, with predictions of this warming to continue in the upcoming decades. This study focuses on James Ross Island, where the Abernethy Flats automatic weather station is located in a lowland area with semi-arid climate. Air and ground temperature, soil heat flux and soil moisture during the thawing season were monitored on this site from 2015 to 2023. Moreover, two approaches to determining soil thermal conductivity were compared – laboratory measurements and calculation from field data. During this period, mean annual temperatures have increased dramatically for both air (from −6.9 °C in 2015/2016 to −3.8 °C in 2022/2023) and ground (from −6.5 °C to −3.2 °C), same as active layer thickness (from 68 cm to 95 cm). Average soil thermal conductivity for the thawing period reached values between 0.49 and 0.74 W/m.K−1 based on field data. Statistically significant relationships were found between the seasonal means of volumetric water content and several other parameters – soil thermal conductivity (r = 0.91), thawing degree days (r = −0.87) and active layer thickness (r = −0.88). Although wetter soils generally have a higher conductivity, the increase in temperature exhibits a much stronger control over the active layer thickening, also contributing to the overall drying of the upper part of the soil profile.

Links

GM22-28659M, research and development project

Name: Vliv změny klimatu na dynamiku periglaciálního prostředí v oblasti Antarktického poloostrova

Investor: Czech Science Foundation

VAN 2022, interní kód MU

Name: Český antarktický výzkumný program 2022 (Acronym: CARP 2022)

Investor: Ministry of Education, Youth and Sports of the CR, Czech Antarctic Research Programme 2022, Antarctic research

Citovat

KŇAŽKOVÁ, Michaela and Filip HRBÁČEK. Interannual variability of soil thermal conductivity and moisture on the Abernethy Flats (James Ross Island) during thawing seasons 2015-2023. Catena. Elsevier Science, 2024, vol. 234, January 2024, p. 1-12. ISSN 0341-8162. Available from: https://dx.doi.org/10.1016/j.catena.2023.107640.

@article{2379584,
   author = {Kňažková, Michaela and Hrbáček, Filip},
   article_number = {January 2024},
   doi = {http://dx.doi.org/10.1016/j.catena.2023.107640},
   keywords = {Soil thermal properties; Soil thermal properties; Soil thermal regime; Soil thermal regime; Active layer thickness; Active layer thickness; Antarctic Peninsula; Antarctic Peninsula; Climate change; Climate change},
   language = {eng},
   issn = {0341-8162},
   journal = {Catena},
   title = {Interannual variability of soil thermal conductivity and moisture on the Abernethy Flats (James Ross Island) during thawing seasons 2015-2023},
   url = {https://www.sciencedirect.com/science/article/pii/S0341816223007312},
   volume = {234},
   year = {2024}
}

TY  - JOUR
ID  - 2379584
AU  - Kňažková, Michaela - Hrbáček, Filip
PY  - 2024
TI  - Interannual variability of soil thermal conductivity and moisture on the Abernethy Flats (James Ross Island) during thawing seasons 2015-2023
JF  - Catena
VL  - 234
IS  - January 2024
SP  - 1-12
EP  - 1-12
PB  - Elsevier Science
SN  - 03418162
KW  - Soil thermal properties
KW  - Soil thermal properties
KW  - Soil thermal regime
KW  - Soil thermal regime
KW  - Active layer thickness
KW  - Active layer thickness
KW  - Antarctic Peninsula
KW  - Antarctic Peninsula
KW  - Climate change
KW  - Climate change
UR  - https://www.sciencedirect.com/science/article/pii/S0341816223007312
N2  - The knowledge of soil thermal properties is important for determining how a soil will behave under changing climate conditions, especially in the sensitive environment of permafrost affected soils. This paper represents the first complex study of the interplay between the different parameters affecting soil thermal conductivity of soils in Antarctica. Antarctic Peninsula is currently the most rapidly warming region of the whole Antarctica, with predictions of this warming to continue in the upcoming decades. This study focuses on James Ross Island, where the Abernethy Flats automatic weather station is located in a lowland area with semi-arid climate. Air and ground temperature, soil heat flux and soil moisture during the thawing season were monitored on this site from 2015 to 2023. Moreover, two approaches to determining soil thermal conductivity were compared – laboratory measurements and calculation from field data. During this period, mean annual temperatures have increased dramatically for both air (from −6.9 °C in 2015/2016 to −3.8 °C in 2022/2023) and ground (from −6.5 °C to −3.2 °C), same as active layer thickness (from 68 cm to 95 cm). Average soil thermal conductivity for the thawing period reached values between 0.49 and 0.74 W/m.K−1 based on field data. Statistically significant relationships were found between the seasonal means of volumetric water content and several other parameters – soil thermal conductivity (r = 0.91), thawing degree days (r = −0.87) and active layer thickness (r = −0.88). Although wetter soils generally have a higher conductivity, the increase in temperature exhibits a much stronger control over the active layer thickening, also contributing to the overall drying of the upper part of the soil profile.
ER  -

KŇAŽKOVÁ, Michaela and Filip HRBÁČEK. Interannual variability of soil thermal conductivity and moisture on the Abernethy Flats (James Ross Island) during thawing seasons 2015-2023. \textit{Catena}. Elsevier Science, 2024, vol.~234, January 2024, p.~1-12. ISSN~0341-8162. Available from: https://dx.doi.org/10.1016/j.catena.2023.107640.

Detailed Information on Publication Record