Results 91 to 100 of about 571 (207)
On Relation between Frost Penetration and Frost Heave
Frost heave and its damages are the most important factors affecting road in a cold area.Neumerous data have been obtained from the investigation of frost penetration and heaving of roads in all parts of Hokkaido over a period of several years.This paper contains following items.(1) Relationship between frost penetration and freezing index.(2 ...
openaire +2 more sources
We present ground surface movements on sorted circles in a karst cave using time‐lapse photogrammetry with accuracies of up to ±2 mm. Data with 3‐hourly resolution revealed average vertical movements of up to 50 mm and horizontal movements of up to 15 mm during individual freeze–thaw cycles.
Jaroslav Obu +9 more
wiley +1 more source
Connections Between Surface and Subsurface Temperature Anomalies
Abstract Temperature anomalies, such as marine heatwaves and cold spells, are often studied as sea‐surface phenomena. Substantial temperature anomalies are also present in the subsurface, but subsurface temperature data are sparser. Here we use 1° × 1° × 7 day resolution ocean temperature maps from 1993 to 2023 to explore the dominant relation of ...
Sarah Packman +2 more
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Frost heave model calculations for the Calgary frost heave test facility
Frost heave calculations using the Segregation Potential (SP) model and the Incremental Ice Segregation (DISR) model are compared ta the observed frost heave data from chilled pipeline sections at the Calgary Frost Heave Test Facility. Madel calculations are performed with the measured temperature gradients and measured frost depths for a range of SP ...
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Abstract The origin of orthogonally spreading ridge segments separated by oceanic transform faults, versus obliquely spreading ridge segments without transform faults (TFs), is a long‐standing enigma of plate tectonics. We address this problem using three‐dimensional (3D) geodynamic models that simulate axial magmatic intrusions along two ridge ...
Garrett Ito +5 more
wiley +1 more source
EVALUATION OF THE EFFECTIVENESS OF RING THERMAL INSULATION FOR PROTECTING A PIPELINE FROM THE HEAVING SOIL [PDF]
Areas with heaving soil are one of the most complex hindrance for the design and construction of underground pipelines. Inhomogeneity of the geological structure of the base leads to irregular uplifts of soil and pipelines.
EVGENIY V. MARKOV +2 more
doaj
Abstract Warm, saline Atlantic waters and fresher Arctic‐origin waters converge in the central Nordic Seas, creating strong mesoscale and submesoscale variability that influences both hydrography and sound propagation. During the Northern Ocean Rapid Surface Evolution 2022 experiment, high‐resolution temperature and salinity measurements were collected
Megan S. Ballard +11 more
wiley +1 more source
Exploring Potential Mechanisms for the Initiation of Solifluction Patterns
Abstract Hillslopes in arctic regions commonly display large‐scale features—known as solifluction patterns—that form due to the exceedingly slow downhill movement of frost‐heaved soil. Here we use a combination of remote sensing data, linear stability analysis, numerical modeling, and review of a wide range of literature to evaluate several working ...
Rachel C. Glade +4 more
wiley +1 more source
A Note on the Frost Heaving of Rocks
For the purpose of forecasting the frost heaving of rock masses, the author studied on the relation between the rate of frost heaving and physical properties of rocks such as grain size distribution, specific gravity, water contents, etc. Laboratory tests were carried out to rock specimens which are molded into a cylinder with the height of 3 cm and ...
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Self‐Knowledge and the Capacity to Judge
Abstract Several philosophers have sought to explain certain features of self‐knowledge our beliefs on the basis of the relation which holds between them and our judgments. Typically, these philosophers presuppose that there is just a single relation between these, for instance the relation of identity.
Matthew Parrott
wiley +1 more source

