Results 91 to 100 of about 1,593 (210)

Saline Permafrost and Cryopegs as Potentially Important Sources of CO2—Assessing Organic Carbon Mineralization Potentials on the Alaskan Coastal Plain

Global Change Biology, Volume 32, Issue 7, July 2026.
Incubation experiments reveal that potentially carbon‐rich saline permafrost and cryopegs from Arctic coastal plains exhibit CO2 production potentials comparable to active layers. This could substantially shift greenhouse gas balances, as salinity is currently not accounted for in permafrost carbon assessments.
Fabian Seemann, Mackenzie R. Baysinger, Susanne Liebner, Claire Treat, Michael Zech, Maren Jenrich, Guido Grosse, Benjamin M. Jones, Jens Strauss   +8 more
wiley   +1 more source

Thermokarst-lake methanogenesis along a complete talik (thaw bulb) profile [PDF]

, 2016
Thermokarst (thaw) lakes emit methane (CH4) to the atmosphere, with the carbon (C) originating from terrestrial sources such as the Holocene soils of the lakes’ watersheds, thaw of Holocene- and Pleistoceneaged permafrost soil beneath and surrounding the
Martínez Cruz, Karla C., Jones, Miriam C., Sepulveda-Jauregui, A., Walter Anthony, Katey M., Bondurant, Allen C., Grosse, Guido, Heslop, Joanne K.   +6 more
core   +1 more source

n-Alkanes, total organic carbon content, radiocarbon ages, grain size distribution, biogeochemical and hydrochemical parameters of sediment core beneath thermokarst lake Goltsovoye Lake on the Bykovsky Pensinula, northeastern Siberia [PDF]

, 2020
These datasets describe a 31.5 m long sediment core taken from beneath thermokarst lake Goltsovoye Lake (71.74515 N, 129.30217 E) on the Bykovsky Peninsula, northeastern Siberia. The thermokarst lake was 510 cm deep.
Strauss, Jens, Mangelsdorf, Kai, Jongejans, Loeka Laura   +2 more
core   +1 more source

Thermokarst hazards susceptibility mapping on the Qinghai-Tibet plateau based on a collaborative IV-machine learning architecture

Geocarto International
Accelerating climate change intensifies permafrost degradation and thermokarst hazards on the Qinghai-Tibet Plateau (QTP), threatening ecosystems and infrastructure.
Tiantian Li, Wenhui Liu, Qiong Li, Hairui Liu, Sha Yang, Wei Li, Qing Li, Bingnan Luo, Jianqiang Zhang, Renjie He   +9 more
doaj   +1 more source

Small‐Scale Spatial Variability in Carbon Fluxes Driven by Soil and Vegetation Characteristics in Wetlands of Trail Valley Creek, Canada

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract The microtopography of the Arctic tundra and the associated soil moisture (SM) gradient influence the net ecosystem‐atmosphere exchange of methane (CH4) and carbon dioxide (CO2). To quantify fine‐scale variability in a permafrost ecosystem, we measured growing‐season carbon fluxes with closed chambers at Trail Valley Creek, Canada from 2022 to
Kseniia Ivanova, Anna‐Maria Virkkala, Judith Vogt, Aneta Bieniada, Annelen Küchenmeister, Olaf Kolle, Oliver Sonnentag, Bruno Lecavalier, Mathias Göckede   +8 more
wiley   +1 more source

Does Palsa Thaw in Northern Finland Contribute to Remobilisation of Metals Accumulated in Peat Into Surface Waters?

Land Degradation &Development, Volume 37, Issue 9, Page 4230-4250, 30 May 2026.
ABSTRACT Permafrost is rapidly degrading in the sporadic zone, including palsa mires in Scandinavia. Peatlands in the area have likely accumulated heavy metals from atmospheric deposition of industrial contaminants in the wider region. As the palsa mire chemical composition is not well known, and in other permafrost regions the permafrost thaw may ...
Joanna Katarzyna Jóźwik, Krystyna Kozioł, Marcin Frankowski, Marta Jakubiak, Kamil Nowiński, Mariusz Jędrysek, Danuta Szumińska, Żaneta Polkowska   +7 more
wiley   +1 more source

Microbial controls on the fate of methane along a thermokarst lake to lagoon transition [PDF]

, 2021
Greenhouse gas (GHG) emissions from abrupt thaw beneath thermokarst lakes were projected to at least double radiative forcing from circumpolar permafrost-soil carbon fluxes by the end of this century, primarily through the release of methane, a much ...
Wagner, Dirk, Strauss, Jens, Rivkina, Elizaveta, Biskaborn, Boris K., Jenrich, Maren, Angelopoulos, Michael, Grigoriev, Mikhail N., Grosse, Guido, Liebner, Susanne, Knoblauch, Christian, Bussmann, Ingeborg, Overduin, Pier Paul, Kallmeyer, Jens, Yang, Sizhong, Damm, Ellen   +14 more
core  

Seafloor Sediments, Morphologic Features, and Geotechnical Properties of Harrison Bay in the Alaskan Beaufort Sea

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Sediments on Arctic continental shelves are impacted by sea ice and ice‐related processes for up to 9 months per year. As a result, seabed morphology in cold regions can exhibit features such as ice scours which are absent on lower‐latitude shelves.
E. F. Eidam, N. Stark, J. H. Nienhuis, D. Duncan, N. Brilli, N. Kallioras, R. Smith, A. D. J. Heath   +7 more
wiley   +1 more source

Thermokarst lake monitoring on the Bykovsky Peninsula using high-resolution remote sensing data [PDF]

, 2018
Thermokarst lakes are a characteristic element of arctic permafrost regions and an indicator for their rapid landscape changes. Assessing their dynamics contributes to the understanding of driving processes of change, to the evaluation of impacts on ...
Henning, Theresa, Kizyakov, Alexander I., Günther, Frank, Grosse, Guido   +3 more
core   +2 more sources

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source