IOS Chukchi Sea


Institute of Ocean Sciences, Sidney BC, Canada

Principal contact

Dr. Humfrey Melling, email: Humfrey.Melling at

Data web site

Project description:

Mooring design:


Upward Looking Sonar on bottom anchored moorings


Chukchi Sea, 75.1N, 168.0W

Time interval

August 2003 to August 2005

Data processing notes

Data were processed and calibrated by H. Melling and D. A Reidel, IOS. Statistical summaries were computed by IOS and reformatted by R. Lindsay.

Summaries and distributions of both point data and pseudo-spatial estimates of the ice draft are included here.

Number of samples

22.8e6 point values, 24 monthly averages



The mooring was a collaborative undertaking of the Canadian Institute of Ocean Sciences, the USA Cold Regions Research Engineering Laboratory and the NOAA Arctic Research Office. The effort is jointly supported by NOAA Climate Program Office and the Canadian Department of Fisheries and Oceans.





Chukchi Sea draft box plots

Box plots show the median (black) and the 5th, 25th, 75th, and 95th percentile values for each month. The colors indicate the month of the year.