Results 71 to 80 of about 43,136 (296)

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Permafrost

General Interest Publication, 1973
Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the area covered by permafrost across Canada. Permafrost is a term used to describe the thermal condition of earth materials, such as soil and rock, when their temperature remains below 0 degrees Celsius continuously for more than one year.
  +4 more sources

Surface displacement revealed by L-band InSAR analysis in the Mayya area, Central Yakutia, underlain by continuous permafrost

Earth, Planets and Space, 2020
Recent increases in global temperature have stimulated permafrost degradation associated with landform deformation caused by the melting of excess ground ice (thermokarst).
Takahiro Abe, Go Iwahana, Petr V. Efremov, Alexey R. Desyatkin, Takumi Kawamura, Alexander Fedorov, Yuri Zhegusov, Kazuki Yanagiya, Takeo Tadono   +8 more
doaj   +1 more source

Evaluating permafrost definitions for global permafrost area estimates in CMIP6 climate models

Environmental Research Letters, 2023
Global permafrost regions are undergoing significant changes due to global warming, whose assessments often rely on permafrost extent estimates derived from climate model simulations.
Norman J Steinert, Matvey V Debolskiy, Eleanor J Burke, Félix García-Pereira, Hanna Lee   +4 more
doaj   +1 more source

Frozen Ground - The News Bulletin of the International Permafrost Association, No.21 [PDF]

, 1997
Frozen Ground - The News Bulletin of the International Permafrost Association, No ...
International Permafrost Association, IPA
core  

Dissolved organic carbon loss from Yedoma permafrost amplified by ice wedge thaw [PDF]

, 2013
Pleistocene Yedoma permafrost contains nearly a third of all organic matter (OM) stored in circum-arctic permafrost and is characterized by the presence of massive ice wedges.
Zimov, Nikita, Holmes, Robert, Dowdy, K. L., Davydov, S.P., Spencer, Robert G. M., Spencer, Robert, Eglinton, Timothy, Davydova, A., Dowdy, Kelsey, Mann, P. J., Bulygina, E.B., Zimov, N., Vonk, J. E.; id_orcid, Mann, P.J., Eglinton, Timothy I., Vonk, Jorien, Bulygina, Ekaterina, Spencer, Robert G M, Mann, Paul, Davydov, S. P., Bulygina, E. B., Davydov, Sergei P., Holmes, R.M., Spencer, R.G.M., Eglinton, T.I., Eglinton, T. I., Bulygina, Ekaterina B., Davydova, Anna, Holmes, R. Max, Davydov, Sergey, Dowdy, K.L., Holmes, Robert M., Spencer, R. G. M., Holmes, R. M., Vonk, J.E., Mann, Paul J., Vonk, J. E.   +36 more
core   +3 more sources

The projected risk of plant invasions on the peri‐Antarctic islands under climate change

Ecography, EarlyView.
The peri‐Antarctic islands have largely been shielded from alien plant species due to low human pressure, limited introduction pathways, and local harsh climates. However, climate change is expected to lower these barriers. We assess the vulnerability of 12 peri‐Antarctic islands to invasion by 2220 plant species invasive in at least one region of the ...
Tom Vorstenbosch, Franz Essl, Bernd Lenzner, Johannes Wessely, Wayne Dawson, Mark van Kleunen, Jan Pergl, Petr Pyšek, Stefan Dullinger   +8 more
wiley   +1 more source

Frozen Ground - The News Bulletin of the International Permafrost Association, No.32 [PDF]

, 2008
Frozen Ground - The News Bulletin of the International Permafrost Association, No ...
International Permafrost Association, IPA
core  

Biodegradability of dissolved organic carbon in permafrost soils and aquatic systems: A meta-analysis [PDF]

, 2015
As Arctic regions warm and frozen soils thaw, the large organic carbon pool stored in permafrost becomes increasingly vulnerable to decomposition or transport.
Tank, Suzanne, Striegl, R.G., C. C. Treat, Tank, S.E., Wickland, K. P., K. P. Wickland, R. G. M. Spencer, Tank, Suzanne E., Spencer, Robert, Treat, Claire, Mann, P. J., Abbott, Benjamin, Treat, C. C., Vonk, J. E.; id_orcid, Spencer, R. G M, Striegl, Robert, Striegl, Robert G., Vonk, Jorien, Spencer, Robert G M, Mann, Paul, Treat, Claire C., S. E. Tank, R. G. Striegl, Wickland, K.P., Abbott, B.W., Tank, S. E., Organic geochemistry, Spencer, Robert G.M., Wickland, Kimberly, Abbott, B. W., Striegl, R. G., Wickland, Kimberly P., Vonk, Jorien E., B. W. Abbott, Abbott, Benjamin W., NWO-VENI: Ancient organic matter that matters: The fate of Siberian Yedoma deposits, J. E. Vonk, P. J. Mann, Mann, Paul J., Vonk, J. E.   +39 more
core   +4 more sources

Green water, wetlands, and atmospheric moisture recycling ‐ An emerging new paradigm for grassland science

Grassland Research, EarlyView.
The importance of green water in water resource management. Conceptual classification of terrestrial water components highlighting the central role of green water in land‐atmosphere interactions. This schematic distinguishes green water (soil moisture available for plant uptake and evapotranspiration) from blue water (surface water, groundwater, and ...
Khadija Javed, Cory Matthew, Humayun Javed   +2 more
wiley   +1 more source