North Pole Environmental Observatory

Organization

Polar Science Center,

Applied Physics Laboratory, University of Washington, Seattle WA

Principal contact

 Dr. Richard Moritz, email: dickm at apl.washington.edu

Data web site

 http://psc.apl.washington.edu/northpole/

Methodology

 Upward Looking Sonar on bottom anchored moorings

Location

 North Pole

Time interval

 2001-2010

Data processing notes

Data were processed and calibrated by R. Moritz. Statistical summaries were computed and reformatted by R. Lindsay, from the point data.

Additional details on the ULS instrument, calibration procedures, are presented in Drucker, R., S. Martin and R. Moritz. Observations of ice thickness and frazil ice in the St. Lawrence Island polynya from satellite imagery, upward looking sonar, and
salinity/temperature moorings. J. Geophys. Res., 108 (C5), 2003, 18-1 - 18-18.

Number of samples

371972 point samples, 72 total months

Documentation

2001 2002 2004 2005 2006 2008

Meta data

 html file (click on the NPEO tab at the bottom of the page)

Summary Data

 monthly averages

PDF Data

 monthly PDFs

Point data

2001-2002, 10 min, 2002-2003, 5 min, 2004-2005, 7 min, 2005-2006, 5 min preliminary, 2006-2008, 5 min, 2008-2010, 8 min

Citation

 

 

ULS concept picture      NPEO mooring design

npeo box plots

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