Results 31 to 40 of about 973,278 (223)

Complex Vulnerabilities of the Water and Aquatic Carbon Cycles to Permafrost Thaw

Frontiers in Climate, 2021
The spatial distribution and depth of permafrost are changing in response to warming and landscape disturbance across northern Arctic and boreal regions. This alters the infiltration, flow, surface and subsurface distribution, and hydrologic connectivity
Michelle A. Walvoord, Robert G. Striegl
doaj   +1 more source

Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR

Remote Sensing of Environment, 2019
Nordenskiold Land in Central Spitsbergen, Svalbard is characterized as a high latitude, high relief periglacial landscape with permafrost occurring both in mountains and lowlands.
L. Rouyet, T. R. Lauknes, H. Christiansen, S. Strand, Y. Larsen   +4 more
semanticscholar   +1 more source

Arctic Landscapes in Transition: Responses to Thawing Permafrost [PDF]

Eos, Transactions American Geophysical Union, 2010
Observations indicate that over the past several decades, geomorphic processes in the Arctic have been changing or intensifying. Coastal erosion, which currently supplies most of the sediment and carbon to the Arctic Ocean [Rachold et al., 2000], may have doubled since 1955 [Mars and Houseknecht, 2007].
J. C. Rowland, C. E. Jones, G. Altmann, R. Bryan, B. T. Crosby, L. D. Hinzman, D. L. Kane, D. M. Lawrence, A. Mancino, P. Marsh, J. P. McNamara, V. E. Romanvosky, H. Toniolo, B. J. Travis, E. Trochim, C. J. Wilson, G. L. Geernaert   +16 more
openaire   +1 more source

Enhanced CO₂ emissions driven by flooding in a simulation of palsa degradation [PDF]

Biogeosciences
Climate change is predicted to put most of the permafrost habitats in the discontinuous zone at risk of disappearing within the next few decades. On a decadal scale, abrupt permafrost thaw may result in larger C losses than gradual permafrost thaw, but ...
M. Laurent, M. Laurent, M. R. Baysinger, M. R. Baysinger, J. Schaller, M. Lück, M. Hoffmann, T. Windirsch, T. Windirsch, T. Windirsch, R. H. Ellerbrock, J. Strauss, C. C. Treat, C. C. Treat   +13 more
doaj   +1 more source

Recent peat and carbon accumulation on changing permafrost landforms along the Mackenzie River valley, Northwest Territories, Canada

Environmental Research Letters, 2023
Northwestern Canada is currently warming nearly four times faster than the global average, driving accelerated permafrost thaw and changes to ecosystem vegetation, hydrology and landscape structure across the landscape.
Pénélope Germain Chartrand, Oliver Sonnentag, Nicole K Sanderson, Michelle Garneau   +3 more
doaj   +1 more source

A Modeling Toolbox for Permafrost Landscapes

Eos, 2018
A new resource makes it easier for researchers to explore predictions of how melting permafrost might affect carbon release, wetlands, and river deltas as they evolve and other interacting effects.
Overeem, Irina, Jafarov, Elchin, Wang, Kang, Schaefer, Kevin, Stewart, Scott, Clow, Gary, Piper, Mark, Elshorbany, Yasin   +7 more
openaire   +1 more source

Estimating lichen biomass in forests and peatlands of northwestern Canada in a changing climate

Arctic, Antarctic, and Alpine Research, 2022
Climate warming in the North could lead to lichen decline within critical woodland caribou habitat. We used repeat measurements of sixty-nine plots over ten years (2007–2008 and 2017–2018) to assess lichen biomass changes under a warming climate along a ...
Ruth Catherine Errington, S. Ellen Macdonald, Natalka A. Melnycky, Jagtar S. Bhatti   +3 more
doaj   +1 more source

Modeling the role of preferential snow accumulation in through talik development and hillslope groundwater flow in a transitional permafrost landscape

Environmental Research Letters, 2018
Through taliks—thawed zones extending through the entire permafrost layer—represent a critical type of heterogeneity that affects water redistribution and heat transport, especially in sloping landscapes.
Elchin E. Jafarov, E. Coon, D. Harp, C. Wilson, S. Painter, A. Atchley, V. Romanovsky   +6 more
semanticscholar   +1 more source

Landscape matters: Predicting the biogeochemical effects of permafrost thaw on aquatic networks with a state factor approach

Permafrost and Periglacial Processes, 2020
Permafrost thaw has been widely observed to alter the biogeochemistry of recipient aquatic ecosystems. However, research from various regions has shown considerable variation in effect.
S. Tank, J. Vonk, M. Walvoord, J. McClelland, I. Laurion, Benjamin W. Abbott   +5 more
semanticscholar   +1 more source

Assessment of the natural conditions of the territory of the Anabar region on a landscape basis [PDF]

E3S Web of Conferences
The article assesses the natural conditions of the territory of the Anabar region of the Sakha Republic on a permafrost-landscape basis for accounting by subsoil users and other economic entities in order to preserve biodiversity and develop reindeer ...
Efremova Inga
doaj   +1 more source