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From:Canadian Journal of Civil Engineering (Vol. 37, Issue 4) Peer-ReviewedWe thank Dr. Beltaos for this discussion. We contacted Gary Timco, one of the authors of the TC paper and he confirmed on 13 January 2010 that Dr. Beltaos' interpretation of their experimental results is correct and...
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From:Canadian Journal of Forest Research (Vol. 50, Issue 2) Peer-ReviewedIntermediate disturbances are an important component of many forest disturbance regimes, with effects on canopy structure and related functions that are highly dependent on the nature and intensity of the perturbation....
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From:Canadian Journal of Civil Engineering (Vol. 46, Issue 3) Peer-ReviewedBeltaos (2018) presented an analysis of ice-jam flood frequency of the lower Peace River. Beltaos (2018) stated that the "ecosystem has experienced prolonged dry periods since the late 1960s, coincident with the...
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From:Atmospheric Chemistry and Physics (Vol. 19, Issue 8) Peer-Reviewed
We have identified a region of an ice cloud where a sharp transition of dual-wavelength ratio occurs at a fixed height for longer than 20 min. In this paper we provide evidence that rapid aggregation of ice...
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From:Canadian Journal of Earth Sciences (Vol. 44, Issue 11) Peer-ReviewedAbstract: Ice wedges are presently inactive in white spruce (Picea glauca) forests of eastern Mackenzie Delta as shown by the absence of vein ice above ice wedges, the maintenance of intact breaking cables, and the...
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From:Canadian Journal of Earth Sciences (Vol. 58, Issue 2) Peer-ReviewedLandsat 4-5 Thematic Mapper, Landsat 8 Operational Land Imager, and RapidEye-3 data sets were used to identify potential groundwater discharge zones, via icings, in the Central Mackenzie Valley (CMV) of the Northwest...
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From:International Journal of Aerospace Engineering (Vol. 2020) Peer-ReviewedThis study aims at addressing a problem on icing detection for Unmanned Aerial Vehicle (UAV for short) because traditional icing detection methods are costly and bulky. Toward this end, a pitot-based icing detection...
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From:Natural Hazards and Earth System Sciences (Vol. 17, Issue 7) Peer-ReviewedFloods resulting from river ice jams pose a great risk to many riverside municipalities in Canada. The location of an ice jam is mainly influenced by channel morphology. The goal of this work was therefore to develop a...
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From:The Cryosphere (Vol. 11, Issue 2) Peer-ReviewedThe mass balance of the Greenland Ice Sheet (GrIS) in a warming climate is of critical interest to scientists and the general public in the context of future sea-level rise. An improved understanding of temporal and...
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From:Atmospheric Chemistry and Physics (Vol. 19, Issue 17) Peer-Reviewed
Aerosols that are efficient ice-nucleating particles (INPs) are crucial for the formation of cloud ice via heterogeneous nucleation in the atmosphere. The distribution of INPs on a large spatial scale and as a...
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From:Canadian Journal of Civil Engineering (Vol. 37, Issue 4) Peer-ReviewedIntroduction The writer would like to commend the authors for their contribution to the modelling of dynamic ice-jam processes and notes with appreciation that the new model is intended to be in the public domain. It...
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From:International Journal of Aerospace Engineering (Vol. 2017) Peer-ReviewedIn view of the rotor icing problems, the influence of centrifugal force on rotor blade icing is investigated. A numerical simulation method of three-dimensional rotor blade icing is presented. Body-fitted grids around...
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From:Mechanika (Vol. 26, Issue 1) Peer-ReviewedNomenclature a is volume factor (a=[V.sub.d]/V); V is control volume, m(3); u is velocity vector, m/s; G is droplet gravity vector, m/s-(2); K is momentum exchange coefficient; [mu] is dynamic viscosity of air, kg/(m...
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From:Atmospheric Chemistry and Physics (Vol. 19, Issue 16) Peer-Reviewed
The relation between the mineralogical characteristics of size-selected feldspar particles from 50 to 800 nm and their ability to act as ice-nucleating particles (INPs) in the immersion mode is presented. Five...
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From:Canadian Journal of Civil Engineering (Vol. 46, Issue 3) Peer-ReviewedWe present an alternative analysis of the observational record of historical ice-jam floods in the lower Peace River presented in Beltaos (2018) and illustrate the need to examine the history of hydrological change in...
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From:International Journal of Aerospace Engineering (Vol. 2022) Peer-ReviewedConsidering the transient heat and mass transfer process of the impinged water droplets during aircraft icing, an unsteady thermodynamic model was established to simulate the dynamic developments of the water film and...
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From:Arctic (Vol. 70, Issue 2) Peer-ReviewedABSTRACT. Some coastal communities in western Alaska have observed the occurrence of "slush-ice berms." These features typically form during freeze-up, when ice crystal-laden water accumulates in piles on the shore....
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From:Canadian Journal of Civil Engineering (Vol. 42, Issue 9) Peer-ReviewedThe development of ice dams in steep channels dictates water level variations and influences flow rates and habitat conditions. Despite the dominance of ice dam development in cold region gravel bed channels, practicing...
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From:Canadian Journal of Forest Research (Vol. 41, Issue 2) Peer-ReviewedNatural frequency (f) and damping ratio ([zeta]) are important dynamic parameters that affect the likelihood of tree failure. Much work has investigated these parameters on conifers, but few data exist for open-grown...
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From:Canadian Journal of Civil Engineering (Vol. 33, Issue 9) Peer-ReviewedAbstract: Spring breakup on northern rivers can result in ice jams that present severe flood risk to adjacent communities. Such events can occur extremely rapidly, leaving little or no advanced warning to residents....