Results 61 to 70 of about 854,536 (203)

Science Needs for a Terrestrial Biosphere Tipping Point Early Warning System

Reviews of Geophysics, Volume 64, Issue 4, December 2026.
Abstract Tipping points in the Earth system have the potential to cause major detrimental impacts to the biosphere and societies. Their inherent nonlinearity implies that even relatively small additional increases in external forcing might result in disproportionately large adjustments to components of the Earth system.
Jesse F. Abrams, Chris Huntingford, Sergei Petrovskii, Joshua E. Buxton, Helen Millman, Chris A. Boulton, Robert J. Parker, Cristina Ruiz Villena, Andrew M. Cunliffe, Joseph Clarke, Valerio Lucarini, Darren Ghent, Peter M. Cox, Timothy M. Lenton   +13 more
wiley   +1 more source

Evaluation of the energy budget of thermokarst lake in permafrost regions of the Qinghai–Tibet Plateau

Advances in Climate Change Research
Thermokarst lake formation accelerates permafrost degradation due to climate warming, thereby releasing significant amounts of carbon into the atmosphere, complicating hydrological cycles, and causing environmental damage.
Ze-Yong Gao, Fu-Jun Niu, Yi-Bo Wang, Jing Luo, Guo-An Yin, Yun-Hu Shang, Zhan-Ju Lin   +6 more
doaj   +1 more source

Limnological evolution of Zelma Lake, a recently drained thermokarst lake in Old Crow Flats (Yukon, Canada)

Arctic Science, 2017
Evidence from remote sensing studies suggests that the frequency of thermokarst lake drainage events is increasing in response to climate change, but the consequences of these changes on the limnology of remaining waterbodies remain unknown.
Jana M.E. Tondu, Kevin W. Turner, Johan A. Wiklund, Brent B. Wolfe, Roland I. Hall, Ian McDonald   +5 more
doaj   +1 more source

Thermokarst lake inception and development in syngenetic ice-wedge polygon terrain during a cooling climatic trend, Bylot Island (Nunavut), eastern Canadian Arctic [PDF]

The Cryosphere, 2020
Thermokarst lakes are widespread and diverse across permafrost regions, and they are considered significant contributors to global greenhouse gas emissions.
F. Bouchard, F. Bouchard, F. Bouchard, F. Bouchard, D. Fortier, D. Fortier, M. Paquette, V. Boucher, R. Pienitz, R. Pienitz, I. Laurion, I. Laurion   +11 more
doaj   +1 more source

Post‐Fire Surface Energy Partitioning and Thermal Responses in Arctic Boreal Forests and Tundra

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract Rapid Arctic warming intensifies wildfire activity across high‐latitude ecosystems, yet post‐fire surface responses of boreal forests and tundra remain poorly understood. Here, we investigate land surface temperature (LST) and energy partitioning responses during the first post‐fire summer across the pan‐Arctic using satellite observations and
Tianshuai Li, Jun Ge, Haoran Zhang, Yawen Liu, Lian Xue, Anbao Zhu, Xin Miao, Ke Ding, Yincheng Liu, Yifei Xu, Dongdong Qiu, Lanbo Zhao, Xin Huang   +12 more
wiley   +1 more source

Thermokarst lake changes over the past 40 years in the Qinghai–Tibet Plateau, China

Frontiers in Environmental Science, 2022
A thermokarst lake is generally defined as a lake that occupies a closed basin and is created by the massive melting of ground ice in ice-rich permafrost regions, which has a great impact on regional hydro-ecological equilibrium and permafrost ...
Lan Li, Xindi Zhang, Xuan Li, Shufang Zhao, Wankui Ni, Zhenzhen Yang   +5 more
doaj   +1 more source

Constraining bubbling of methane from thermokarst lakes [PDF]

Eos, Transactions American Geophysical Union, 2013
In northern thermokarst lakes, which form in depressions left as permafrost thaws, methane, a greenhouse gas, can be released from lake sediments to the atmosphere through bubbling, or ebullition. Constraining the amount of methane released through bubbling would help scientists understand the role of thawing permafrost in the carbon cycle and global ...
openaire   +1 more source

Terrestrial inputs and in‐lake processes shape dissolved organic matter along a permafrost gradient

Limnology and Oceanography, Volume 71, Issue 11, November 2026.
Abstract Northern permafrost landscapes store large amounts of organic carbon that can enter lakes as dissolved organic matter (DOM), but links among shoreline terrestrial sources, lake‐water DOM composition, and catchment configuration remain uncertain in low‐precipitation Shield landscapes. We combined shoreline soil‐porewater and lake‐water sampling
Ryan H. S. Hutchins, Jeremy G. Leathers, Sherry L. Schiff, Michael C. English, Mackenzie Schultz, Jason J. Venkiteswaran, Suzanne E. Tank, Richard J. Elgood, Pieter J. K. Aukes   +8 more
wiley   +1 more source

(Table 3) Changes in thermokarst lake extent, infilling with fen vegetation and lateral erosion at study sites in Canada, Russia and Sweden

, 2011
Thermokarst lakes = surrounded by peat plateau along >75% of the shoreline. For all study sites the changes in lake area were statistically significant (p < 0.001), except for in the 2 km × 2 km area in Rogovaya (p = 0.63).
Kuhry, Peter, Peter Kuhry (6971801), A Britta K Sannel (6971723), Sannel, A Britta K   +3 more
core   +1 more source

Analysis on physical and chemical properties of water in thermokarst lakes along Qinghai-Tibet engineering corridor

Shui kexue jinzhan, 2014
Formation and development of thermokarst lakes have great influence on the cold region environment,and its lateral heat erosion can cause the embankment instability in permafrost regions.
LIN Zhanju, NIU Fujun, LUO Jing, YIN Guo'an, LIU Minghao, CHRIS Burn   +5 more
doaj   +1 more source