Results 71 to 80 of about 100,828 (240)
Silva Fennica, 2009 The effects of soil preparation, planting technique and location along gap-shelterwood gradients (position and orientation) on frost heaving damage to seedlings were studied in Vindeln Experimental Forests, northern Sweden. The forest was harvested in
Chantal, Michelle +4 more
doaj +1 more source
Modeled Subsidence of Permafrost Terrain 2025–2050: North‐Central Alaska
Permafrost and Periglacial Processes, EarlyView.ABSTRACT A large fraction of the Alaska terrain is underlain by regolith that contains excess ice (ice that in volume exceeds the natural pore space). Possible loss of excess ice would lead to ground subsidence, which in turn would disturb and destabilize the ground surface.
Jaakko Putkonen +8 more
wiley +1 more source
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Permafrost in northern peatlands occurs within individual palsas or extensive peat plateaus and controls local carbon storage. These permafrost landforms are complex, and their internal structure remains poorly understood. We used quasi‐3D electrical resistivity tomography (ERT) measurements, supported by UAV‐LiDAR topography, frost probing ...
Cas Renette +5 more
wiley +1 more source
Case Studies in Thermal EngineeringAmid the predicament of repeated frost damage in cold-region tunnels, the multi-factor coupling mechanism of such damage and precise evaluation based on segmentation and grading have received inadequate attention.
Xin Zhao +3 more
doaj +1 more source
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Freeze–thaw processes cause periglacial creep (otherwise known as solifluction) which forms solifluction lobes. These are lobate features characterized by a steep riser (front) and a smooth tread (body). Despite the widespread occurrence of these lobes, the controls on their morphometry remain poorly understood. Research into solifluction lobe
Jil S. van Etten +2 more
wiley +1 more source
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Understanding fine‐scale surface changes is crucial for quantifying ecosystem dynamics and detecting landscape changes. Palsas, comparably small peatland elevations with an ice‐rich permafrost core, undergo natural cycles of growth and degradation. They can also serve as indicators of climate change in subarctic regions. Because they typically
Alexander Störmer +3 more
wiley +1 more source
Is Frost Heaving Killing Your Legumes?
, 1953 Frost heaving is a serious hazard to the maintenance of legume stands on many of our Iowa soils - especially on level claypan soils. But there are some things you can do to reduce your frost heaving losses.
Nicholson, R., Shrader, W., Scholl, J.
core
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Pingos and related permafrost mounds are widespread periglacial landforms in Arctic environments that are ice‐rich on the one hand and contain taliks on the other, making them vulnerable to climate change. So far, the interior, geophysical characteristics, and distribution of ground ice within these dome‐ or cone‐shaped features have not been ...
Tim Wiegand +2 more
wiley +1 more source
Machine Learning for Thermodynamic States of Notional Nonideal Energetic Mixtures
Propellants, Explosives, Pyrotechnics, EarlyView.. ABSTRACT Currently, modeling the thermodynamic states in the reaction zone of a detonating energetic mixture entails iteratively solving a set of coupled differential equations that require detailed material property information or models whose empirical parameters must be physically measured.
Sangeeth Balakrishnan +7 more
wiley +1 more source
Research in the Relation between Transition of temperature in winter and Frost-heaving of Forest Road [PDF]
, 1993 From measurement of frost-heaving of forest road and temperature since winter in 1991, it appeared as follows. 1. At hide place, there was high correlation between accumuiative temperature and frost-heaving hight. 2.
井上, 裕, 林, 博道
core +1 more source