Active layer and permafrost thermal regimes in the ice-free areas of Antarctica

F Hrbáček, M Oliva, C Hansen, M Balks, TA O'Neill… - Earth-Science …, 2023 - Elsevier
Abstract Ice-free areas occupy< 0.5% of Antarctica and are unevenly distributed across the
continent. Terrestrial ecosystem dynamics in ice free areas are strongly influenced by …

Thermal state of permafrost and active‐layer monitoring in the antarctic: Advances during the international polar year 2007–2009

G Vieira, J Bockheim, M Guglielmin… - Permafrost and …, 2010 - Wiley Online Library
Results obtained during the International Polar Year (IPY) on the thermal state of permafrost
and the active layer in the Antarctic are presented, forming part of ANTPAS ('Antarctic …

Climate warming and permafrost dynamics in the Antarctic Peninsula region

J Bockheim, G Vieira, M Ramos… - Global and Planetary …, 2013 - Elsevier
Dramatic warming of the climate over the last several decades has influenced the properties
and distribution of permafrost in the Antarctic Peninsula region. Five approaches were used …

Detailed detection of active layer freeze–thaw dynamics using quasi-continuous electrical resistivity tomography (Deception Island, Antarctica)

M Farzamian, G Vieira, FA Monteiro Santos… - The …, 2020 - tc.copernicus.org
Climate-induced warming of permafrost soils is a global phenomenon, with regional and site-
specific variations which are not fully understood. In this context, a 2-D automated electrical …

Comparison of the surface energy budget between regions of seasonally frozen ground and permafrost on the Tibetan Plateau

L Gu, J Yao, Z Hu, L Zhao - Atmospheric Research, 2015 - Elsevier
Surface energy budgets were calculated using turbulent flux observation data and
meteorological gradient data collected in 2008 from two sites: BJ, located in a seasonally …

Ground temperature and permafrost distribution in Hurd Peninsula (Livingston Island, Maritime Antarctic): An assessment using freezing indexes and TTOP modelling

A Ferreira, G Vieira, M Ramos, A Nieuwendam - Catena, 2017 - Elsevier
Abstract The Western Antarctic Peninsula region shows mean annual air temperatures
ranging from− 4 to− 2° C. Due to its proximity to the climatic threshold of permafrost, and …

[HTML][HTML] Experimental and computational investigation of passive heat exchangers to enhance the performance of a geothermal thermoelectric generator

N Pascual, P Alegría, M Araiz, Á Martínez… - Applied Thermal …, 2024 - Elsevier
Thermoelectric devices hold significant promise for generating electricity from geothermal
heat, enabling the powering of measuring equipment in remote locations without the need …

Interannual variability of ground surface thermal regimes in Livingston and Deception islands, Antarctica (2007–2021)

MA de Pablo, M Ramos, G Vieira… - Land Degradation & …, 2024 - Wiley Online Library
The absence of vegetation in most ice‐free areas of Antarctica makes the soil surface very
sensitive to atmosphere dynamics, especially in the western sector of the Antarctic …

Advancing Permafrost Monitoring With Autonomous Electrical Resistivity Tomography (A‐ERT): Low‐Cost Instrumentation and Open‐Source Data Processing Tool

M Farzamian, G Blanchy, P McLachlan… - Geophysical …, 2024 - Wiley Online Library
Permafrost is a widespread phenomenon in the cold regions of the globe and is under‐
represented in global monitoring networks. This study presents a novel low‐cost, low …

Recent shallowing of the thaw depth at Crater Lake, Deception Island, Antarctica (2006–2014)

M Ramos, G Vieira, MA De Pablo, A Molina, A Abramov… - Catena, 2017 - Elsevier
Abstract The Western Antarctic Peninsula region is one of the hot spots of climate change
and one of the most ecologically sensitive regions of Antarctica, where permafrost is near its …