Results 51 to 60 of about 854,536 (203)

Biogeochemical Distinctiveness of Peatland Ponds, Thermokarst Waterbodies, and Lakes [PDF]

Geophysical Research Letters, 2022
AbstractSmall lentic freshwater ecosystems play a disproportionate role in global biogeochemical cycles by processing large amounts of carbon (C), nitrogen (N), and phosphorus (P), but it is unlikely that they behave as one homogenous group for the purpose of extrapolation. Here, we synthesize biogeochemical data from >12,000 geographically distinct
Julien Arsenault, Julie Talbot, Lee E. Brown, Joseph Holden, Karla Martinez‐Cruz, Armando Sepulveda‐Jauregui, Graeme T. Swindles, Maxime Wauthy, Jean‐François Lapierre   +8 more
openaire   +3 more sources

Decadal-scale hotspot methane ebullition within lakes following abrupt permafrost thaw

Environmental Research Letters, 2021
Thermokarst lakes accelerate deep permafrost thaw and the mobilization of previously frozen soil organic carbon. This leads to microbial decomposition and large releases of carbon dioxide (CO _2 ) and methane (CH _4 ) that enhance climate warming ...
K M Walter Anthony, P Lindgren, P Hanke, M Engram, P Anthony, R P Daanen, A Bondurant, A K Liljedahl, J Lenz, G Grosse, B M Jones, L Brosius, S R James, B J Minsley, N J Pastick, J Munk, J P Chanton, C E Miller, F J Meyer   +18 more
doaj   +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   +3 more sources

Landsat-Based Monitoring of Landscape Dynamics in Arctic Permafrost Region

Journal of Remote Sensing, 2022
Ice-rich permafrost thaws as a result of Arctic warming, and the land surface collapses to form characteristic thermokarst landscapes. Thermokarst landscapes can bring instability to the permafrost layer, affecting regional geomorphology, hydrology, and ...
Yating Chen, Aobo Liu, Xiao Cheng
doaj   +1 more source

Localized Browning in Thermokarst-Dominated Landscapes Reverses Regional Greening Trends Under a Warming Climate in Northeastern Siberia

Remote Sensing
The response of Arctic vegetation to climate warming exhibits pronounced spatial heterogeneity, driven partly by widespread permafrost degradation. However, the role of thermokarst lake development in mediating vegetation-climate interactions remains ...
Ruixin Wang, Ping Wang, Li Xu, Shiqi Liu, Qiwei Huang   +4 more
doaj   +1 more source

Methane emissions from northern lakes under climate change: a review

SN Applied Sciences, 2021
Northern lakes are important sources of CH4 in the atmosphere under the background of permafrost thaw and winter warming. We synthesize studies on thermokarst lakes, including various carbon sources for CH4 emission and the influence of thermokarst ...
Lingling Li, Bin Xue
doaj   +1 more source

The evolution of a thermokarst-lake landscape: late Quaternary permafrost degradation and stabilization in interior Alaska

, 2016
Thermokarst processes characterize a variety of ice-rich permafrost terrains and often lead to lake formation. The long-term evolution of thermokarst landscapes and the stability and longevity of lakes depend upon climate, vegetation and ground ...
Jones, Benjamin M., Edwards, Mary, McDowell, Patricia, Grosse, Guido   +3 more
core   +1 more source

Past and present thermokarst lake dynamics in the Yedoma Ice Complex region of North-Eastern Yakutia [PDF]

, 2018
Thermokarst lakes are typical components of the yedoma-alas dominated relief in the coastal lowlands of North- Eastern Yakutia and formed as a result of thawing Late Pleistocene ice-rich Yedoma Ice Complex (IC) deposits.
Nitze, Ingmar, Rivkina, Elizaveta, Günther, Frank, Veremeeva, Alexandra, Grosse, Guido, Glushkova, Nadezhda   +5 more
core   +1 more source

Detection and spatiotemporal analysis of methane ebullition on thermokarst lake ice using high-resolution optical aerial imagery [PDF]

Biogeosciences, 2016
Thermokarst lakes are important emitters of methane, a potent greenhouse gas. However, accurate estimation of methane flux from thermokarst lakes is difficult due to their remoteness and observational challenges associated with the heterogeneous nature ...
P. R. Lindgren, G. Grosse, K. M. Walter Anthony, F. J. Meyer   +3 more
doaj   +1 more source

Short‐Term Weather Variability Alters Plant Carbon Balance in Arctic Tundra Species

Global Change Biology Communications, Volume 1, Issue 4, December 2026.
With weather variability increasing due to climate change, we examined its effects on three species of Arctic plants. Short‐term variability in temperature increases average dark respiration rate while variability in light decreases average photosynthetic rate.
Shu Han Gan, Duncan N. L. Menge, Edward B. Rastetter, Natalie Boelman, Kevin L. Griffin   +4 more
wiley   +1 more source