The 2011 la Nia: So strong, the oceans fell

Carmen Boening, Josh K. Willis, Felix W. Landerer, R. Steven Nerem, John Fasullo

Research output: Contribution to journalArticlepeer-review

334 Scopus citations

Abstract

Global mean sea level (GMSL) dropped by 5 mm between the beginning of 2010 and mid 2011. This drop occurred despite the background rate of rise, 3 mm per year, which dominates most of the 18-year record observed by satellite altimeters. Using a combination of satellite and in situ data, we show that the decline in ocean mass, which explains the sea level drop, coincides with an equivalent increase in terrestrial water storage, primarily over Australia, northern South America, and Southeast Asia. This temporary shift of water from the ocean to land is closely related to the transition from El Nio conditions in 2009/10 to a strong 2010/11 La Nia, which affected precipitation patterns world-wide.

Original languageEnglish
Article numberL19602
JournalGeophysical Research Letters
Volume39
Issue number19
DOIs
StatePublished - Oct 16 2012

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