Climatic change of the sea ice mean thickness in the Arctic Basin

Conference · Tue Dec 31 00:00:00 EST 1996

OSTI ID:471053

Nagurny, A P ^[1]

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1. Arctic and Antarctic Research Inst., St. Petersburg (Russian Federation)

During the last decade, regular monitoring of the Arctic Ocean sea ice elastic-gravity waves has been carried out with the use of seismometers and inclination meters. According to the linear theory, the lengths and periods of self-exited and resonance waves propagating in ice depend exclusively on ice thickness and its cylindrical elastic module when sea depths are more than 500m. The waves propagate inside the ice at great distances (up to thousands kilometers) with a weak damping and are widespread in the Arctic. Mean sea ice thickness in the Arctic Ocean reveals a decrease of 12--14 cm in 1970--1992 which is equivalent to approximately 0.5 cm per year.

• OSTI ID: 471053
• Report Number(s): CONF-960420-; ISBN 0-884736-02-5; TRN: IM9722%%176
• Resource Relation: Conference: 7. global warming international conference and exposition, Vienna (Austria), 1-3 Apr 1996; Other Information: PBD: 1996; Related Information: Is Part Of The 7. global warming international conference and expo: Abstracts; PB: 154 p.
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ARCTIC OCEAN
ICE
CLIMATIC CHANGE
ENVIRONMENTAL IMPACTS
MONITORING