Results 41 to 50 of about 248,447 (203)

Summer anorganic hydrochemistry (cations and anions) of thermokarst lakes in the Central Yakutian Lowland and mountain lakes in the Verkhoyansk Mountain Range in Eastern Yakutia

, 2022
Between 6th August and 2nd September, 2021, a total of 66 lakes in Central and Eastern Yakutia were assessed as part of the joint Russian-German expedition (NEFU-AWI; RU-Land_2021_Yakutia). Samples and data were obtained with a large variety of different
Wieczorek, Mareike, Kahl, Jan, Davydova, Paraskovya V, Stoof-Leichsenring, Kathleen Rosmarie, Levina, Sardana N, Pestryakova, Luidmila A, Eder, Iris, Glückler, Ramesh, Stieg, Amelie, Biskaborn, Boris K, Eulenburg, Antje, Overduin, Pier Paul, Heim, Birgit, Gorodnichev, Ruslan, Herzschuh, Ulrike, Ushnitskaya, Lena A, Meister, Philip, Zakharov, Evgenii S, Egorov, Aital V, Baisheva, Izabella A   +19 more
core   +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

Thermokarst-lake methanogenesis along a complete talik profile [PDF]

Biogeosciences, 2015
Abstract. Thermokarst (thaw) lakes emit methane (CH4) to the atmosphere formed from thawed permafrost organic matter (OM), but the relative magnitude of CH4 production in surface lake sediments vs. deeper thawed permafrost horizons is not well understood.
J. K. Heslop, K. M. Walter Anthony, A. Sepulveda-Jauregui, K. Martinez-Cruz, A. Bondurant, G. Grosse, M. C. Jones   +6 more
openaire   +3 more sources

Carbon storage and burial in thermokarst lakes of permafrost peatlands

, 2022
Thermokarst (thaw) lakes of the Western Siberian Lowland (WSL), the World´s largest permafrost peatland, contain important but poorly constrained stocks of organic carbon (OC) and nitrogen.
Karlsson, J., Lim, A.G.,, Karlsson, Jan,, Aliev, R., Aliev, R.A.,, Shevchenko, V., Shevchenko, Vladimir P., Pokrovsky, Oleg S., Manasypov, R.M.,, Lim, A., Manasypov, R., Kritskov, Ivan V., Pokrovsky, O.S.,, Shirokova, Liudmila S., Aliev, Rafik Aziz, Lim, Artem G., Shevchenko, V.P.,, Krickov, I.V.,, Shirokova, L.S.,, Krickov, I., Shirokova, L., Manasypov, Rinat M., Karlsson, Jan, Pokrovsky, O., R. A. Aliev, V. P. Shevchenko, L. S. Shirokova, A. G. Lim, O. S. Pokrovsky, I. V. Krickov, J. Karlsson, R. M. Manasypov   +31 more
core   +1 more source

Panarctic lakes exerted a small positive feedback on early Holocene warming due to deglacial release of methane

Communications Earth & Environment, 2023
Climate-driven permafrost thaw can release ancient carbon to the atmosphere, begetting further warming in a positive feedback loop. Polar ice core data and young radiocarbon ages of dissolved methane in thermokarst lakes have challenged the importance of
L. S. Brosius, K. M. Walter Anthony, C. C. Treat, M. C. Jones, M. Dyonisius, G. Grosse   +5 more
doaj   +1 more source

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-basin sediments, Tuktoyaktuk Coastlands, western arctic Canada

, 1996
Three stages of deposition are distinguished in thermokarst-lake-basin sequences in ice-rich permafrost of the Tuktoyaktuk Coastlands, western arctic Canada: (1) widespread retrogressive thaw slumping around lake margins that rapidly transports upland ...
Julian Murton (4460746)
core   +2 more sources

Geographic and seasonal variation of dissolved methane and aerobic methane oxidation in Alaskan lakes [PDF]

Biogeosciences, 2015
Methanotrophic bacteria play an important role oxidizing a significant fraction of methane (CH4) produced in lakes. Aerobic CH4 oxidation depends mainly on lake CH4 and oxygen (O2) concentrations, in such a manner that higher MO rates are usually found ...
K. Martinez-Cruz, A. Sepulveda-Jauregui, K. Walter Anthony, F. Thalasso   +3 more
doaj   +1 more source

Automated Identification of Thermokarst Lakes Using Machine Learning in the Ice-Rich Permafrost Landscape of Central Yakutia (Eastern Siberia)

Remote Sensing, 2023
The current rate and magnitude of temperature rise in the Arctic are disproportionately high compared to global averages. Along with other natural and anthropogenic disturbances, this warming has caused widespread permafrost degradation and soil ...
Lara Hughes-Allen, Frédéric Bouchard, Antoine Séjourné, Gabriel Fougeron, Emmanuel Léger   +4 more
doaj   +1 more source

Geocryological conditions triggering thermokarst processes in Central Yakutia [PDF]

E3S Web of Conferences, 2020
The use of the Central Yakutia Landsat images revealed an increase in the area of thermokarst lakes by two times for the Suola and Taatta River basins and a quarter times in the Tanda River basin during the period 2000-2019.
Nesterova Nataliia, Makarieva Olga, Fedorov Alexander, Shikhov Andrey   +3 more
doaj   +1 more source