Arctic ice island and sea ice movements and mechanical properties. Second quarterly report, 1 January-31 March 1984
Technical Report
·
OSTI ID:6610479
Research activities for the second quarter are presented for the following tasks: (1) ice island; (2) Chukchi Sea pack ice age; and (3) mechanical properties of sea spray ice bonds structures. The research program on ice islands has four objectives: (1) establish a time history of all of the Arctic ice shelves and an historically-verified source function for ice islands through the use of aerial photography, satellite imagery, and all available historical records; (2) establish positioning buoys on the existing ice islands to track their trajectories daily and to telemeter daily barometric pressure and temperature, via System Argos; (3) relate geostrophic winds to the observed trajectories; (4) build a pseudo-random model for ice island motion over the long term which will enable a determination of the probability of interaction ice islands and offshore structures. Task 2 is designed to determine probabilities of ice-free summer periods, their duration and extent, for the US portion of the Chukchi Sea. The emphasis on Task 3 is to measure the bond strength between the spray ice and various coatings which might be used on offshore structures. Significant progress was made on all three tasks and detailed reports are presented. 54 figures.
- Research Organization:
- Alaska Univ., Fairbanks (USA). Geophysical Inst.
- DOE Contract Number:
- AC21-83MC20037
- OSTI ID:
- 6610479
- Report Number(s):
- DOE/MC/20037-1644; ON: DE84016323
- Country of Publication:
- United States
- Language:
- English
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·
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Related Subjects
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ADHESION
AERIAL SURVEYING
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EXPLORATION
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ICEBERGS
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020200* -- Petroleum-- Reserves
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& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
ADHESION
AERIAL SURVEYING
ARCTIC OCEAN
DEPOSITION
EXPLORATION
ICE
ICEBERGS
MAPS
MECHANICAL PROPERTIES
OFFSHORE OPERATIONS
PHOTOGRAPHY
RESEARCH PROGRAMS
SATELLITES
SEAS
SHIPS
SURFACE COATING
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TRAJECTORIES
WIND