Results 91 to 100 of about 125,890 (374)

Temperature sensitivity of permafrost carbon release mediated by mineral and microbial properties

open access: yesScience Advances, 2021
Large-scale evidence reveals that mineral and microbial properties mediate permafrost C release and its temperature response. Temperature sensitivity (Q10) of permafrost carbon (C) release upon thaw is a vital parameter for projecting permafrost C ...
Shuqi Qin   +5 more
semanticscholar   +1 more source

Active Layer Warming and Thickening on CALM‐S JGM, James Ross Island, in the Period 2013/14–2022/23

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The Circumpolar Active Layer Monitoring‐South (CALM‐S) site was established near the Johann Gregor Mendel (JGM) research station on James Ross Island in February 2014. The CALM‐S JGM grid, measuring 80 × 70 m, encompasses two distinct lithological units: a Holocene marine terrace (covering approximately 75% of the grid) and Cretaceous ...
Filip Hrbáček   +3 more
wiley   +1 more source

Fast response of fungal and prokaryotic communities to climate change manipulation in two contrasting tundra soils

open access: yesEnvironmental Microbiome, 2019
Background Climate models predict substantial changes in temperature and precipitation patterns across Arctic regions, including increased winter precipitation as snow in the near future.
Jana Voříšková   +2 more
doaj   +1 more source

Coupled Northern Hemisphere permafrost–ice-sheet evolution over the last glacial cycle [PDF]

open access: yesClimate of the Past, 2015
Permafrost influences a number of processes which are relevant for local and global climate. For example, it is well known that permafrost plays an important role in global carbon and methane cycles.
M. Willeit, A. Ganopolski
doaj   +1 more source

Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China

open access: yesFrontiers in Environmental Science, 2021
Peatland is a key component of terrestrial ecosystems in permafrost regions and have important effects on climate warming. Soil enzymes are involved in biogeochemical cycle of soil carbon (C), nitrogen (N) and phosphorus (P), which can be used as early ...
Chao Liu   +7 more
doaj   +1 more source

Non-invasive geophysical investigation and thermodynamic analysis of a palsa in Lapland, northwest Finland [PDF]

open access: yesPermafrost and Periglacial Processes 25 (2014) 45-52, 2014
Non-invasive geophysical prospecting and a thermodynamic model were used to examine the structure, depth and lateral extent of the frozen core of a palsa near Lake Peeraj\"arvi, in northwest Finland. A simple thermodynamic model verified that the current climatic conditions in the study area allow sustainable palsa development.
arxiv   +1 more source

Environmental Conditions in the Late Pleistocene at the Southern Margin of the European Periglacial Domain (Hungary) Inferred From Quartz Grain Microtextures

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The paper investigates environmental conditions prevailing at the southern margin of the European periglacial domain in NW Hungary (Kemeneshát area) during the Late Pleistocene. Samples of sediments infilling sand wedges and their host sediments were analyzed by examining the grain‐size distributions, as well as the morphology and ...
Beáta Farkas   +3 more
wiley   +1 more source

Unboxing Trustworthiness through Quantum Internet [PDF]

open access: yesarXiv, 2022
The broad adoption of the Internet of Things during the last decade has widened the application horizons of distributed sensor networks, ranging from smart home appliances to automation, including remote sensing. Typically, these distributed systems are composed of several nodes attached to sensing devices linked by a heterogeneous communication ...
arxiv  

Methane clathrates in the Solar System [PDF]

open access: yesAstrobiology, Volume 15, Number 4, 2015, 2015
We review the reservoirs of methane clathrates that may exist in the different bodies of the Solar System. Methane was formed in the interstellar medium prior to having been embedded in the protosolar nebula gas phase. This molecule was subsequently trapped in clathrates that formed from crystalline water ice during the cooling of the disk and ...
arxiv   +1 more source

Late-Pleistocene Syngenetic Permafrost in the CRREL Permafrost Tunnel, Fox, Alaska [PDF]

open access: yes, 2008
contributing authors: Bjella, K.L., Bray, M.T., Collins, C.M., Douglas, T.A., Fortier, D., French, H.M., Kanevskiy, M.Z., Shur, Y.L.Late-Pleistocene syngenetic permafrost exposed in the walls and ceiling of the CRREL permafrost tunnel consists of ice-and
French, H.M.   +2 more
core  

Home - About - Disclaimer - Privacy