Satellite Evidence of Change in the Northern Gyre

  • Sirpa Häkkinen
  • Hjálmar Hátún
  • Peter Rhines

This chapter is structured as follows: First we discuss altimeter missions to date and what has been established in early studies in describing the subpolar circulation. Then we proceed to more recent studies of the subpolar gyre variability, mainly related to the 1990s large changes in the stratification structure during which time we are fortunate to have had TOPEX/Poseidon mission. Finally, we present the latest developments as gathered from altimetry and drifters for the subpolar gyre and North Atlantic Current (NAC) variability.


Empirical Orthogonal Function Mode Subpolar Gyre North Atlantic Current Reykjanes Ridge Gyre Index 
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Copyright information

© Springer Science + Business Media B.V 2008

Authors and Affiliations

  • Sirpa Häkkinen
    • 1
  • Hjálmar Hátún
    • 2
  • Peter Rhines
    • 3
  1. 1.NASA Goddard Space Flight CenterGreenbeltUSA
  2. 2.Faroese Fisheries LaboratoryFaroe Islands
  3. 3.Oceanography and Atmospheric Sciences DepartmentsUniversity of WashingtonSeattleUSA

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