Extension of NHWAVE to Couple LAMMPS for Modeling Wave Interactions with Arctic Ice Floes

2014 ◽  
Author(s):  
Fengyan Shi ◽  
James T. Kirby
1981 ◽  
Vol 1981 (1) ◽  
pp. 617-621 ◽  
Author(s):  
K. M. Meikle

ABSTRACT Two air-droppable igniters have been developed to ignite oil on the surface of melt pools on Arctic ice floes and in other remote, difficult-of-access locations. Performance has been satisfactorily demonstrated by prototype tests under both laboratory and field conditions. A substantial amount of spilled oil that would be prohibitively unsafe or expensive to remove by any other means can now be burned off to reduce adverse effects on the environment.


2012 ◽  
Author(s):  
P. Anno ◽  
K. Soofi ◽  
B. Cobb ◽  
J. Santosuosso ◽  
C. Yetsko ◽  
...  

Author(s):  
R. McConnell ◽  
W. Kober ◽  
F. Leberl ◽  
R. Kwok ◽  
J. Curlander

2015 ◽  
Vol 56 (69) ◽  
pp. 167-174 ◽  
Author(s):  
Sinéad L. Farrell ◽  
Kelly M. Brunt ◽  
Julia M. Ruth ◽  
John M. Kuhn ◽  
Laurence N. Connor ◽  
...  

AbstractAirborne and spaceborne altimeters provide measurements of sea-ice elevation, from which sea-ice freeboard and thickness may be derived. Observations of the Arctic ice pack by satellite altimeters indicate a significant decline in ice thickness, and volume, over the last decade. NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) is a next-generation laser altimeter designed to continue key sea-ice observations through the end of this decade. An airborne simulator for ICESat-2, the Multiple Altimeter Beam Experimental Lidar (MABEL), has been deployed to gather pre-launch data for mission development. We present an analysis of MABEL data gathered over sea ice in the Greenland Sea and assess the capabilities of photon-counting techniques for sea-ice freeboard retrieval. We compare freeboard estimates in the marginal ice zone derived from MABEL photon-counting data with coincident data collected by a conventional airborne laser altimeter. We find that freeboard estimates agree to within 0.03 m in the areas where sea-ice floes were interspersed with wide leads, and to within 0.07 m elsewhere. MABEL data may also be used to infer sea-ice thickness, and when compared with coincident but independent ice thickness estimates, MABEL ice thicknesses agreed to within 0.65 m or better.


2010 ◽  
Vol 4 (3) ◽  
pp. 1433-1448
Author(s):  
A. Chmel ◽  
V. Smirnov ◽  
A. Panov

Abstract. Mechanical processes in the Arctic ice pack result in fragmented sea ice cover, the regular geometry of which could be described in main features in terms of the conventional mechanics. However, the size distribution of sea ice floes does not exhibit the random (poissonian-like) statistics and follows the power law typical for self-similar (fractal) structures. The analysis of ice floe oscillations in the frequency range specific for cracking, shearing and stick-slip motion evidences the self-organized dynamics of sea ice fracturing, which manifests itself in scaling distributions of both the discrete energy discharges in fracture events and the recurrence times between that one. So determined space-time-energy self-similarity characterises the ice pack as the non-equilibrium, nonlinear thermodynamic system where the synergic relations are established through conventional long propagating wave/oscillations. The presented experimental data were collected at the Russian ice-research camp "North Pole 35" drifting on the Arctic ice pack in 2008.


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