Variability in the global energy budget and transports 1985–2017
The study of energy flows in the Earth system is essential for understanding current climate change. To understand how energy is accumulating and being distributed within the climate system, an updated reconstruction of energy fluxes at the top of atmosphere, surface and within the atmosphere derive...
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fttriple:oai:gotriple.eu:10670/1.ns20et 2023-05-15T18:18:58+02:00 Variability in the global energy budget and transports 1985–2017 Liu, Chunlei Allan, Richard P. Mayer, Michael Hyder, Patrick Desbruyères, Damien Cheng, Lijing Xu, Jianjun Xu, Feng Zhang, Yu 2020-01-01 https://doi.org/10.1007/s00382-020-05451-8 https://archimer.ifremer.fr/doc/00652/76383/77393.pdf https://archimer.ifremer.fr/doc/00652/76383/77394.docx en eng Springer Science and Business Media LLC doi:10.1007/s00382-020-05451-8 10670/1.ns20et https://archimer.ifremer.fr/doc/00652/76383/77393.pdf https://archimer.ifremer.fr/doc/00652/76383/77394.docx other Archimer, archive institutionnelle de l'Ifremer Climate Dynamics (0930-7575) (Springer Science and Business Media LLC), 2020-12 , Vol. 55 , N. 11-12 , P. 3381-3396 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 2020 fttriple https://doi.org/10.1007/s00382-020-05451-8 2023-01-22T17:48:07Z The study of energy flows in the Earth system is essential for understanding current climate change. To understand how energy is accumulating and being distributed within the climate system, an updated reconstruction of energy fluxes at the top of atmosphere, surface and within the atmosphere derived from observations is presented. New satellite and ocean data are combined with an improved methodology to quantify recent variability in meridional and ocean to land heat transports since 1985. A global top of atmosphere net imbalance is found to increase from 0.10 ± 0.61 W m−2 over 1985–1999 to 0.62 ± 0.1 W m−2 over 2000–2016, and the uncertainty of ± 0.61 W m−2 is related to the Argo ocean heat content changes (± 0.1 W m−2) and an additional uncertainty applying prior to 2000 relating to homogeneity adjustments. The net top of atmosphere radiative flux imbalance is dominated by the southern hemisphere (0.36 ± 0.04 PW, about 1.41 ± 0.16 W m−2) with an even larger surface net flux into the southern hemisphere ocean (0.79 ± 0.16 PW, about 3.1 ± 0.6 W m−2) over 2006–2013. In the northern hemisphere the surface net flux is of opposite sign and directed from the ocean toward the atmosphere (0.44 ± 0.16 PW, about 1.7 ± 0.6 W m−2). The sea ice melting and freezing are accounted for in the estimation of surface heat flux into the ocean. The northward oceanic heat transports are inferred from the derived surface fluxes and estimates of ocean heat accumulation. The derived cross-equatorial oceanic heat transport of 0.50 PW is higher than most previous studies, and the derived mean meridional transport of 1.23 PW at 26° N is very close to 1.22 PW from RAPID observation. The surface flux contribution dominates the magnitude of the oceanic transport, but the integrated ocean heat storage controls the interannual variability. Poleward heat transport by the atmosphere at 30° N is found to increase after 2000 (0.17 PW decade−1). The multiannual mean (2006–2013) transport of energy by the atmosphere from ocean to land is estimated ... Text Sea ice Unknown Climate Dynamics 55 11-12 3381 3396 |
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envir geo Liu, Chunlei Allan, Richard P. Mayer, Michael Hyder, Patrick Desbruyères, Damien Cheng, Lijing Xu, Jianjun Xu, Feng Zhang, Yu Variability in the global energy budget and transports 1985–2017 |
topic_facet |
envir geo |
description |
The study of energy flows in the Earth system is essential for understanding current climate change. To understand how energy is accumulating and being distributed within the climate system, an updated reconstruction of energy fluxes at the top of atmosphere, surface and within the atmosphere derived from observations is presented. New satellite and ocean data are combined with an improved methodology to quantify recent variability in meridional and ocean to land heat transports since 1985. A global top of atmosphere net imbalance is found to increase from 0.10 ± 0.61 W m−2 over 1985–1999 to 0.62 ± 0.1 W m−2 over 2000–2016, and the uncertainty of ± 0.61 W m−2 is related to the Argo ocean heat content changes (± 0.1 W m−2) and an additional uncertainty applying prior to 2000 relating to homogeneity adjustments. The net top of atmosphere radiative flux imbalance is dominated by the southern hemisphere (0.36 ± 0.04 PW, about 1.41 ± 0.16 W m−2) with an even larger surface net flux into the southern hemisphere ocean (0.79 ± 0.16 PW, about 3.1 ± 0.6 W m−2) over 2006–2013. In the northern hemisphere the surface net flux is of opposite sign and directed from the ocean toward the atmosphere (0.44 ± 0.16 PW, about 1.7 ± 0.6 W m−2). The sea ice melting and freezing are accounted for in the estimation of surface heat flux into the ocean. The northward oceanic heat transports are inferred from the derived surface fluxes and estimates of ocean heat accumulation. The derived cross-equatorial oceanic heat transport of 0.50 PW is higher than most previous studies, and the derived mean meridional transport of 1.23 PW at 26° N is very close to 1.22 PW from RAPID observation. The surface flux contribution dominates the magnitude of the oceanic transport, but the integrated ocean heat storage controls the interannual variability. Poleward heat transport by the atmosphere at 30° N is found to increase after 2000 (0.17 PW decade−1). The multiannual mean (2006–2013) transport of energy by the atmosphere from ocean to land is estimated ... |
format |
Text |
author |
Liu, Chunlei Allan, Richard P. Mayer, Michael Hyder, Patrick Desbruyères, Damien Cheng, Lijing Xu, Jianjun Xu, Feng Zhang, Yu |
author_facet |
Liu, Chunlei Allan, Richard P. Mayer, Michael Hyder, Patrick Desbruyères, Damien Cheng, Lijing Xu, Jianjun Xu, Feng Zhang, Yu |
author_sort |
Liu, Chunlei |
title |
Variability in the global energy budget and transports 1985–2017 |
title_short |
Variability in the global energy budget and transports 1985–2017 |
title_full |
Variability in the global energy budget and transports 1985–2017 |
title_fullStr |
Variability in the global energy budget and transports 1985–2017 |
title_full_unstemmed |
Variability in the global energy budget and transports 1985–2017 |
title_sort |
variability in the global energy budget and transports 1985–2017 |
publisher |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
https://doi.org/10.1007/s00382-020-05451-8 https://archimer.ifremer.fr/doc/00652/76383/77393.pdf https://archimer.ifremer.fr/doc/00652/76383/77394.docx |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Archimer, archive institutionnelle de l'Ifremer Climate Dynamics (0930-7575) (Springer Science and Business Media LLC), 2020-12 , Vol. 55 , N. 11-12 , P. 3381-3396 |
op_relation |
doi:10.1007/s00382-020-05451-8 10670/1.ns20et https://archimer.ifremer.fr/doc/00652/76383/77393.pdf https://archimer.ifremer.fr/doc/00652/76383/77394.docx |
op_rights |
other |
op_doi |
https://doi.org/10.1007/s00382-020-05451-8 |
container_title |
Climate Dynamics |
container_volume |
55 |
container_issue |
11-12 |
container_start_page |
3381 |
op_container_end_page |
3396 |
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1766195765001060352 |