An ocean view of the global surface warming hiatus

TitleAn ocean view of the global surface warming hiatus
Publication TypeJournal Article
Year of Publication2018
AuthorsLiu W, Xie SP
JournalOceanography
Volume31
Pagination72-79
Date Published2018/06
Type of ArticleArticle
ISBN Number1042-8275
Accession NumberWOS:000452824700014
Keywordscirculation; climate; decadal modulation; heat uptake; north-atlantic; oceanography; slowdown; temperature analysis; tropical pacific; upgrades; variability
Abstract

The rate of global mean surface temperature increase slowed during 1998-2012. We review oceanic changes during this global warming hiatus from different but related perspectives. In one perspective, we explore the physical mechanisms for sea surface temperature patterns and highlight the role of natural variability, particularly the Interdecadal Pacific Oscillation (IPO) and the Atlantic Multidecadal Oscillation (AMO) that both have chaotic/random phases. In the other perspective, we investigate how the hiatus relates to changes in energy fluxes at the top of the atmosphere and to the three-dimensional distribution of ocean heat content change on decadal timescales. We find that the recent surface warming hiatus is associated with a transition of the IPO from a positive to negative phase and with heat redistribution between the tropical Pacific and Indian Oceans. The AMO has shifted to a positive phase since the late 1990s, inducing a La Nina-type response over the tropical Pacific via a tropic-wide teleconnection, contributing to the global warming hiatus.

DOI10.5670/oceanog.2018.217
Short TitleOceanography
Student Publication: 
No