Global Climate Change Digest: Main Page | Introduction | Archives | Calendar | Copy Policy | Abbreviations | Guide to Publishers


GCRIO Home ->arrow Library ->arrow Archives of the Global Climate Change Digest ->arrow May 1999 ->arrow Giant Ocean Eddies Discovered Search

U.S. Global Change Research Information Office logo and link to home

Last Updated:
February 28, 2007

GCRIO Program Overview

 

 

Library 
Our extensive collection of documents.

 

Get Acrobat Reader

Privacy Policy

Global Climate Change DigestArchives of the
Global Climate Change Digest

A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 12, NUMBER 5, MAY 1999

Giant Ocean Eddies Discovered

Item #d99may50

According to a Feb. 23, 1999, press release from CSIRO, Australian and U.S. oceanographers taking part in the World Ocean Circulation Experiment have discovered dramatic ocean eddies produced by the South Equatorial Current that flows across the Indian Ocean towards Africa. The eddies are larger than Tasmania and a kilometre deep in the Indian Ocean northwest of Australia. As its flow builds up, the current becomes unstable, particularly from June to December, and eddies peel off. These massive ocean eddies form every two months and cause mixing that alters the characteristics of the ocean in a region that is a source for rainfall across southern and western Australia. An understanding of how the Indonesian throughflow and the local currents interact should contribute to improved rainfall predictions for Australia and a recognition of El Niño and La Niña features extending into the Indian Ocean. What is amazing is that such an enormous natural feature has remained undiscovered until now. The ocean features were confirmed with observations from the French/US satellite TOPEX-Poseidon.

  • Guide to Publishers
  • Index of Abbreviations

  • Hosted by U.S. Global Change Research Information Office. Copyright by Center for Environmental Information, Inc. For more information contact U.S. Global Change Research Information Office, Suite 250, 1717 Pennsylvania Ave, NW, Washington, DC 20006. Tel: +1 202 223 6262. Fax: +1 202 223 3065. Email: Web: www.gcrio.org. Webmaster:
    U.S. Climate Change Technology Program Intranet Logo and link to Home