Publication information

Geological Survey of Canada
Open File 7661

Atlas of Sonobuoy Velocity Analyses in Canada Basin

D. Chian and N. Lebedeva-Ivanova

© Her Majesty the Queen in Right of Canada, as represented by the Minister of Natural Resources Canada, 2015

doi:10.4095/295857

Publications in this series have not been edited; they are released as submitted by the author.

View the licence agreement at http://data.gc.ca/eng/open-government-licence-canada

Recommended citation

Chian, D. and Lebedeva-Ivanova, N., 2015. Atlas of Sonobuoy Velocity Analyses in Canada Basin; Geological Survey of Canada, Open File 7661, 1 .zip file. doi:10.4095/295857

Contents

Canada Basin of the Arctic Ocean is located in one of the most remote, ice-covered regions on Earth.  This Atlas presents the data and velocity models for 144 out of 174 sonobuoys launched throughout and north of the Canada Basin between 2007 and 2011.  The data, which are coincident with multichannel seismic reflection profiles, were acquired  to map p-wave velocities and thicknesses of the sedimentary column.  The refraction and wide-angle reflection data provide the basis for transformation of seismic reflection travel time data to the depth domain.  Two independent approaches were utilized to obtain velocity models from the sonobuoy data: forward modeling (FM) of refracted arrivals and semblance analysis (SA) of wide-angle reflections. Sonobuoys with both FM and SA number 99. Agreement between the data sets is excellent. The maximum difference between the methods is about 10% and more than half of the measurements agree to within 5%.  This atlas is a first release of these data with preliminary analyses and interpretations. 

Directory structure

of_7661.pdf
of_7661_readme.rtf
GSCOF7661_Appendices (directory)
	GSCOF7661_Appendix1_ForwardModelingTable.xls
	GSCOF7661_Appendix2_SemblanceTable.xls
GSCOF7661_Sonobuoys (directory)
	2007-01.pdf   2007-02.pdf   2007-03.pdf   2007-04.pdf   2007-05.pdf   2007-06.pdf   2007-08.pdf
	2007-09.pdf   2007-10.pdf   2007-11.pdf   2007-12.pdf   2007-13.pdf   2007-14.pdf   2007-15.pdf
	2007-16.pdf   2007-17.pdf   2007-18.pdf   2007-19.pdf   2007-20.pdf   2007-21.pdf   2007-22.pdf
	2007-23.pdf   2007-24.pdf   2007-25.pdf   2007-26.pdf   2007-27.pdf   2007-28.pdf   
	2008-01.pdf   2008-02.pdf   2008-03.pdf   2008-04.pdf   2008-05.pdf   2008-06.pdf   2008-07.pdf
	2008-08.pdf   2008-09.pdf   2008-10.pdf   2008-11.pdf   2008-12.pdf   2008-13.pdf   2008-14.pdf
	2008-15.pdf   2008-16.pdf   2008-17.pdf   2008-18.pdf   2008-19.pdf   2008-20.pdf   2008-22.pdf
	2008-23.pdf   2008-24.pdf   2008-25.pdf   2008-28.pdf   2008-29.pdf   2008-30.pdf   2008-31.pdf
	2008-32.pdf   2008-33.pdf   2008-34.pdf   2008-35.pdf   2008-36.pdf   2008-37.pdf   2008-38.pdf
	2008-39.pdf
	2009-01-1.pdf   2009-01-2.pdf   2009-01-3.pdf   2009-01-4.pdf   2009-01-5.pdf   2009-01-6.pdf
	2009-02-1.pdf   2009-02-2.pdf   2009-03-1.pdf   2009-03-2.pdf   2009-03-3.pdf   2009-04-1.pdf
	2009-04-2.pdf   2009-04-3.pdf   2009-04-4.pdf   2009-05-1.pdf   2009-06-1.pdf   2009-07-1.pdf
	2009-08-1.pdf   2009-10-1.pdf   2009-11-1.pdf   2009-12-1.pdf   2009-13-1.pdf   2009-13-2.pdf
	2009-14-1.pdf   2009-18-1.pdf   2009-19-1.pdf   2009-21-1.pdf   2009-21-2.pdf   2009-23-1.pdf
	2009-24-1.pdf   2009-25-1.pdf   2009-25-2.pdf   2009-25-3.pdf   2009-26-1.pdf   2009-26-2.pdf
	2009-28-1.pdf   2009-30-1.pdf   2009-31-1.pdf   2009-31-2.pdf   2009-33-1.pdf   2009-34-1.pdf
	2009-35-1.pdf   2009-36-1.pdf
	2010-01.pdf   2010-02.pdf   2010-03.pdf   2010-04.pdf   2010-05.pdf   2010-06.pdf   2010-07.pdf
	2010-08.pdf   2010-09.pdf   2010-10.pdf   2010-11.pdf   2010-12.pdf   2010-13.pdf   2010-14.pdf
	2010-15.pdf   2010-16.pdf   2010-17.pdf   2010-18.pdf   2010-19.pdf   2010-20.pdf   2010-21.pdf
	2010-22.pdf   2010-23.pdf   2010-24.pdf   2010-25.pdf   2010-26.pdf   2010-27.pdf   2010-28.pdf
	2010-29.pdf   2010-30.pdf   2010-31.pdf   2010-32.pdf   2010-33.pdf   2010-34.pdf 
	2011-01.pdf   2011-02.pdf   2011-03.pdf   2011-04.pdf   2011-05.pdf   2011-06.pdf   2011-19.pdf
	2011-20.pdf   2011-21.pdf
GSCOF7661_SonobuoysByYear (directory)
	2007-page1.pdf   2007-page2.pdf   2007-page3.pdf
	2008-page1.pdf   2008-page2.pdf   2008-page3.pdf
	2009-page1.pdf   2009-page2.pdf   2009-page3.pdf
	2010-page1.pdf   2010-page2.pdf   2010-page3.pdf
	2011-page1.pdf   2011-page2.pdf   2011-page3.pdf
of_7661_fig16_PDFmap.pdf   (clickable map hyperlinked to each sonobuoy file)

Adobe®, Acrobat®, and Reader® are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries.

System requirements

PC with 486 or greater processor, or Mac® with OS® X v. 10.2.2 or later; Adobe® Reader® v. 6.0 or later; video resolution of 1280 x 1024.

Author contact information

Deping Chian ( deping.chian@gmail.com )
Geological Survey of Canada
1 Challenger Drive (PO Box 1006)
Dartmouth, Nova Scotia B2Y 4A2 

Availability information

This publication is available for free download through GEOSCAN (http://geoscan.nrcan.gc.ca/).