Results 11 to 20 of about 5,520,997 (286)
Environmental Research Letters, 2019 The Yukon–Kuskokwim (YK) Delta is a region of discontinuous permafrost in the subarctic of southwestern Alaska. Many wildfires have occurred in the YK Delta between 1971–2015, impacting vegetation cover, surface soil moisture, and the active layer ...
Roger J Michaelides +8 more
doaj +3 more sources
Active layer thickness as a function of soil water content [PDF]
Environmental Research Letters, 2021 Active layer thickness (ALT) is a critical metric for monitoring permafrost. How soil moisture influences ALT depends on two competing hypotheses: (a) increased soil moisture increases the latent heat of fusion for thaw, resulting in shallower active ...
Leah K Clayton +22 more
doaj +2 more sources
Active Layer Thickness and Permafrost Area Projections for the 21st Century
Earth's Future, 2023 Permafrost warming leads to greenhouse gas release to the atmosphere, resulting in a positive feedback to climate change. Earth system models indicate that more than 80% of the near‐surface permafrost is projected to disappear by the end of this century,
Xiaoqing Peng +11 more
doaj +5 more sources
Seasonal progression of active-layer thickness dependent on microrelief [PDF]
, 2004 Introduction Active-layer thickness is a major factor for all physical and biological processes in permafrost soils. It is closely related to the fluxes of energy, water and carbon between permafrost landscapes and the atmosphere. Active-layer thickness
Kutzbach, Lars +4 more
openaire +2 more sources
Active Information Networks. [PDF]
, 1998 Future requirements for a broadband multimedia network are discussed and a vision of the future network is presented. Three key needs are identified; rapid introduction of new services, dynamic customisation of services by clients, and minimal management
Marshall, Ian W.
core +4 more sources
Active layer thickness observations
, 2022 Dataset of active layer thickness (ALT) observations on the Qinghai Plateau.
Yixin Xu (12581685) +7 more
core +1 more source
Fluid transport in a thick layer above an active ciliated surface
Biophysical Journal, 1980 The discrete cilia approach is employed to describe the flow field above an active ciliated surface in a layer of finite depth. The infinite-size cilia surface model predicts a uniform flow above the cilia surface. Modifications as a result of a finitely extending cilia surface inside a finite-size dish predict a backward parabolic profile above an ...
Liron, N., Meyer, F.A.
openaire +3 more sources
Energies, 2022 The radioactive gas radon is ubiquitous in the environment and is a major contributor to the human inhalation dose. It is the second leading cause of lung cancer after smoking. Radon concentrations are particularly high in the air of radon-hazardous facilities—uranium mines and radioactive waste repositories containing radium.
Eldar P. Magomedbekov +6 more
openaire +2 more sources
Frontiers in Earth Science, 2023 Active layer thickness (ALT) of permafrost changes significantly under the combined influence of human activities and climate warming, which has a significant impact on the ecological environment, hydrology, and engineering construction in cold regions ...
Daqing Zhan +9 more
doaj +1 more source
Optically Active Spin Defects in Few-Layer Thick Hexagonal Boron Nitride
Physical Review Letters, 2023 Optically-active spin defects in hexagonal boron nitride (hBN) are promising quantum systems for the design of two-dimensional quantum sensing units offering optimal proximity to the sample being probed. In this work, we first demonstrate that the electron spin resonance frequencies of boron vacancy centres (V$_\text{B}^-$) can be detected optically in
Durand, Alrik +13 more
openaire +5 more sources