Tidal Power and Migratory Ice in the Minas Region of the Bay of Fundy, Canada

Surface Ice in the Bay of Fundy 2007

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THE VIEW FROM SPACE of the Inter-Tidal Mudflats in the Minas Region of the Bay of Fundy, Where Thousands of 10 to 100 Tonne Cakes of Ice Migrate From the Mudflats into the Tidal Currents Each Winter
PHOTOS: MASSTOWN, Nova Scotia, of Sediment-Laden Ice
PHOTOS: SHUBENACADIE, Nova Scotia, of Sediment-Laden Ice
PHOTOS: MAITLAND, Nova Scotia, of Sediment-Laden Ice
PHOTOS: SUMMERVILLE, Nova Scotia, of Sediment-Laden Ice
PHOTOS: PARRSBORO, Nova Scotia, of Sediment-Laden Ice (Under Construction)
PUBLICATION 2011: SUMMARY OF IMPACT OF ICE ON THE HARVEST OF TIDAL ELECTRICITY IN THE BAY OF FUNDY, CANADA 2006-2011
PUBLICATION 2010: OpEd
2009 TESTING BUOYANCY of Samples of Sediment-Laden Cakes of Ice Grounded on the Inter-Tidal Mudflats of the Minas Region of the Bay of Fundy
PUBLICATION 2008: REVIEW OF EVIDENCE for Sub-Surface Ice in the Bay of Fundy
PUBLICATION 2008: ENGINEERING ISSUES IN THE HARVEST OF TIDAL POWER
PUBLICATION 2007: SUMMARY AND UPDATE of Surface Ice in the Bay of Fundy
PUBLICATION 2006: DOCUMENTATION of Surface Ice in the Bay of Fundy
For a summary of historical data and an update including the 2007 ice season in the Bay of Fundy, see

Tidal Power and Ocean Ice in the Bay of Fundy, Canada 1968-2007

by

Richard Sanders, Ph.D.

Sanders Resource Management, Inc.

Halifax, Nova Scotia, Canada

and

Emile Baddour, Ph.D.

NRC Institute for Ocean Technology

St. John's, Newfoundland/Labrador, Canada



 

Abstract
Ocean ice capable of impacting marine operations occurs periodically in the most favorable sites for energy harvest from the tidal currents of the Bay of Fund in Nova Scotia and New Brunswick.  In-stream tidal current harvesting devices deployed at these sites should be engineered to tolerate at least 30% ice cover with 15 cm (6 inch) thick floes at least 100 metres in length.  Propelled by tidal currents and prevailing winds, ice floes may achieve velocities in excess of 8 knots in some locations.  In very severe winters, in-stream tidal current harvesting devices may be subjected to periods of 90% cover of rapidly moving or packed ice thicker than 30 cm (12 inches).
Markets for ice-tolerant tidal current harvesting devices developed under the moderate ice conditions in the headwaters of the Bay of Fundy may exist in other jurisdictions with energetic tidal flows which experience more severe conditions of ocean ice.  

Published in
The Proceedings of the 2007 International Conference on Offshore Mechanics and Arctic Engineering
June 10-15, 2007, San Diego, USA

Available from
 
The American Society of Mechanical Engineers Digital Store 
 
and 
 
The National Research Council of Canada Publications Archive 
and search for Sanders, R. or NPArc #: 8896108