Polar science center Hydrographic Climatology (PHC)

A Global Ocean Hydrography with a High Quality Arctic Ocean

W. Ermold and M. Steele
Polar Science Center/Applied Physics Lab/University of Washington
Seattle, WA, 98105 USA


A new gridded ocean climatology, the Polar science center Hydrographic Climatology (PHC) has been created that merges the 1998 version of the World Ocean Atlas (Antonov et al., 1998; Boyer et al., 1998) with the regional Arctic Ocean Atlas (EWG, 1997; 1998). The result is a global climatology for temperature and salinity that contains a good description of the Arctic Ocean and its environs. Monthly, seasonal, and annual average products have been generated.

PHC 3.0

The PHC 2.1 fields have been updated as of March 5th, 2005. This site describes the improvements, and contains the new PHC 3.0 fields. To access the old PHC 2.1 site and data, click on: PHC 2.1.


Related Sites:

Polar Science Center Home Page

Arctic Photos by Gail Grimes, Wendy Ermold, and Roger Andersen
Chukchi Borderland 2002, NSF-Arctic Natural Sciences
Switchyard 2004, NSF OPP-ARCSS

Questions & Comments are Welcome:

Funding for this project has been provided by the High Latitude Program of the Office of Naval Research (ONR), by the Earth Observing System of the National Aeronautics and Space Administration (NASA), and by the Arctic Sciences Section, Office of Polar Programs of the National Science Foundation (NSF). This support is gratefully acknowledged. We would also like to thank Rebecca Morley, who started the PHC ball rolling.


hydrography, ocean, climatology, temperature, salinity, ocean temperature, ocean salinity, ocean hydrography,
ocean climatology, arctic, arctic climatology, arctic ocean, gridded data, Russian data, water mass, seasonal mean,
monthly mean, annual mean, optimal interpolation, arctic model, arctic ocean model, polar model, polar ocean model,
sea ice, sea ice model

This site was last updated 6/15/05