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Title: Atlantic meridional heat transports computed from balancing Earth's energy locally

Abstract

Abstract The Atlantic Meridional Overturning Circulation plays a major role in moving heat and carbon around in the ocean. A new estimate of ocean heat transports for 2000 through 2013 throughout the Atlantic is derived. Top‐of‐atmosphere radiation is combined with atmospheric reanalyses to estimate surface heat fluxes and combined with vertically integrated ocean heat content to estimate ocean heat transport divergence as a residual. Atlantic peak northward ocean heat transports average 1.18 ± 0.13 PW (1 sigma) at 15°N but vary considerably in latitude and time. Results agree well with observational estimates at 26.5°N from the RAPID array, but for 2004–2013 the meridional heat transport is 1.00 ± 0.11 PW versus 1.23 ± 0.11 PW for RAPID. In addition, these results have no hint of a trend, unlike the RAPID results. Strong westerlies north of a meridian drive ocean currents and an ocean heat loss into the atmosphere that is exacerbated by a decrease in ocean heat transport northward.

Authors:
ORCiD logo [1]; ORCiD logo [1]
  1. National Center for Atmospheric Research Boulder Colorado USA
Publication Date:
Research Org.:
National Center for Atmospheric Research (NCAR), Boulder, CO (United States)
Sponsoring Org.:
USDOE; National Science foundation (NSF)
OSTI Identifier:
1344180
Alternate Identifier(s):
OSTI ID: 1344181; OSTI ID: 1425659
Grant/Contract Number:  
DE‐SC0012711; SC0012711
Resource Type:
Published Article
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Name: Geophysical Research Letters Journal Volume: 44 Journal Issue: 4; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union (AGU)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Trenberth, Kevin E., and Fasullo, John T. Atlantic meridional heat transports computed from balancing Earth's energy locally. United States: N. p., 2017. Web. doi:10.1002/2016GL072475.
Trenberth, Kevin E., & Fasullo, John T. Atlantic meridional heat transports computed from balancing Earth's energy locally. United States. https://doi.org/10.1002/2016GL072475
Trenberth, Kevin E., and Fasullo, John T. Sat . "Atlantic meridional heat transports computed from balancing Earth's energy locally". United States. https://doi.org/10.1002/2016GL072475.
@article{osti_1344180,
title = {Atlantic meridional heat transports computed from balancing Earth's energy locally},
author = {Trenberth, Kevin E. and Fasullo, John T.},
abstractNote = {Abstract The Atlantic Meridional Overturning Circulation plays a major role in moving heat and carbon around in the ocean. A new estimate of ocean heat transports for 2000 through 2013 throughout the Atlantic is derived. Top‐of‐atmosphere radiation is combined with atmospheric reanalyses to estimate surface heat fluxes and combined with vertically integrated ocean heat content to estimate ocean heat transport divergence as a residual. Atlantic peak northward ocean heat transports average 1.18 ± 0.13 PW (1 sigma) at 15°N but vary considerably in latitude and time. Results agree well with observational estimates at 26.5°N from the RAPID array, but for 2004–2013 the meridional heat transport is 1.00 ± 0.11 PW versus 1.23 ± 0.11 PW for RAPID. In addition, these results have no hint of a trend, unlike the RAPID results. Strong westerlies north of a meridian drive ocean currents and an ocean heat loss into the atmosphere that is exacerbated by a decrease in ocean heat transport northward.},
doi = {10.1002/2016GL072475},
journal = {Geophysical Research Letters},
number = 4,
volume = 44,
place = {United States},
year = {Sat Feb 18 00:00:00 EST 2017},
month = {Sat Feb 18 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/2016GL072475

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Cited by: 61 works
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