Understanding the Arctic Sea Floor for Engineering Purposes.

This report identifies and assesses those artic seafloor phenomena that influence the design and operation of facilities and platforms for exploring and producing oil, gas, and hard minerals both on and under the sea floor. It also identifies knowledge that is needed of seafloor phenomena and condit...

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Bibliographic Details
Other Authors: NATIONAL RESEARCH COUNCIL WASHINGTON DC COMMITTEE ON ARCTIC SEAFLOOR ENGINEERING
Format: Text
Language:English
Published: 1982
Subjects:
Physical and Dynamic Oceanography
Mining Engineering
*Ocean bottom
*Arctic Ocean
Soils
Permafrost
Hydrates
Natural gas
Frost heave
Thawing
Soil erosion
Sediments
Sea ice
Offshore
Gas hydrates
Ice scouring
Frozen soils
Seismic activity
Arctic
Arctic Ocean
Beaufort Sea
Chukchi
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA119773
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA119773
Description
Summary:This report identifies and assesses those artic seafloor phenomena that influence the design and operation of facilities and platforms for exploring and producing oil, gas, and hard minerals both on and under the sea floor. It also identifies knowledge that is needed of seafloor phenomena and conditions, and, for several areas of major concern, recommends specific research. These recommendations are intended to enhance the ability of the engineer and operator to anticipate and avoid problems that may be posed by seafloor and coastal phenomena, and guard against the effects of such events as thaw subsidence and erosion. Permafrost, often thought to be found only on land, is found extensively beneath the sea floor of the Beaufort Sea, and, to an extent not well known, under the Chukchi and Bering seas. A relict of the geological past, it was covered by rising artic oceans. Permafrost can deteriorate because of natural or man-induced effects and can reform again.

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