Pacific decadal oscillation (PDO) Image
Source: PDO images are courtesy of Nathan Mantua & Steven Hare, University of Washington, Units are degrees Celsius
Published: January 29, 2020
  • In this April 2001 image, the Pacific Decadal Oscillation pattern had persisted for three years
  • Warm water (high sea levels in red and white)
  • Cooler water (lower sea level in blue)

ENLARGE