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Title: Tracking ocean heat uptake during the surface warming hiatus

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms10926· OSTI ID:1337247
 [1];  [1];  [2]
  1. Univ. of California, San Diego, La Jolla, CA (United States)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Ocean heat uptake is observed to penetrate deep during the recent hiatus1,2,3 of global warming in the Atlantic and Southern Ocean. This has been suggested to indicate that the two regions are the driver of the surface warming hiatus4. We show that the deep heat penetration in the Atlantic and Southern Ocean is not unique to the hiatus but common to the past four decades including the 1970s-90s epoch of accelerated surface warming. Our analyses of a large ensemble simulation5 confirm the deep heat penetration in the Atlantic and Southern Ocean in ensemble members with or without surface warming hiatus in the early 21th century. During the past four decades, the global ocean heat content (OHC) of upper 1500m is dominated by a warming trend, and the depth of anthropogenic heat penetration merely reflects the depth of the mean meridional overturning circulation in the basin. Furthermore, the heat penetration depth is not a valid basis to infer the hiatus mechanism.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1337247
Report Number(s):
PNNL-SA-111949; KP1703010
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 92 works
Citation information provided by
Web of Science

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Cited By (25)

The global warming hiatus: Slowdown or redistribution?: THE GLOBAL WARMING HIATUS journal November 2016
Spread in the magnitude of climate model interdecadal global temperature variability traced to disagreements over high-latitude oceans: Spread in Model Temperature Variability journal December 2016
Inconsistent Subsurface and Deeper Ocean Warming Signals During Recent Global Warming and Hiatus: SUBSURFACE AND DEEPER OCEAN WARMING journal October 2017
Analyses of the oceanic heat content during 1980-2014 and satellite-era cyclones over Bay of Bengal journal August 2018
Consensuses and discrepancies of basin-scale ocean heat content changes in different ocean analyses journal June 2017
Global ocean heat content redistribution during the 1998–2012 Interdecadal Pacific Oscillation negative phase journal August 2018
Pacific modulation of accelerated south Indian Ocean sea level rise during the early 21st Century journal May 2019
Natural decadal sea-level variability in the Indian Ocean: lessons from CMIP models journal July 2019
What Caused the Global Surface Warming Hiatus of 1998–2013? journal March 2017
Mechanisms and Predictability of Pacific Decadal Variability journal April 2018
Strengthened Indonesian Throughflow Drives Decadal Warming in the Southern Indian Ocean journal June 2018
Decadal Variability of North Pacific Eastern Subtropical Mode Water journal September 2018
Reconciling controversies about the ‘global warming hiatus’ journal May 2017
The subtle origins of surface-warming hiatuses journal April 2017
Variability of the Indonesian Throughflow in the Makassar Strait over the Last 30 ka journal April 2018
Global warming hiatus contributed to the increased occurrence of intense tropical cyclones in the coastal regions along East Asia journal April 2018
Ocean Sensitivity to Periodic and Constant Volcanism journal January 2020
‘Eastern African Paradox’ rainfall decline due to shorter not less intense Long Rains journal September 2019
Improved estimates of ocean heat content from 1960 to 2015 journal March 2017
Understanding the Recent Global Surface Warming Slowdown: A Review journal October 2018
Decadal Ocean Heat Redistribution Since the Late 1990s and Its Association with Key Climate Modes journal November 2018
Reconstructed 3-D Ocean Temperature Derived from Remotely Sensed Sea Surface Measurements for Mixed Layer Depth Analysis journal December 2019
Analysis of Drought-Sensitive Areas and Evolution Patterns through Statistical Simulations of the Indian Ocean Dipole Mode journal June 2019
Pacific modulation of accelerated south Indian Ocean sea level rise during the early 21st Century text January 2019
Correspondence: Reply to: ‘Correspondence: Variations in ocean heat uptake during the surface warming hiatus’ journal August 2016

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