Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0861.1 |
ENSO-Related Global Ocean Heat Content Variations | |
Wu, Quran1; Zhang, Xuebin2,3; Church, John A.4; Hu, Jianyu1 | |
2019 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:1页码:45-68 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Australia |
英文摘要 | The modulation of the full-depth global integrated ocean heat content (GOHC) by El Nino-Southern Oscillation (ENSO) has been estimated in various studies. However, the quantitative results and the mechanisms at work remain uncertain. Here, a dynamically consistent ocean state estimate is utilized to study the large-scale integrated heat content variations during ENSO events for the global ocean. The full-depth GOHC exhibits a cooling tendency during the peak and decaying phases of El Nino, which is a result of the negative surface heat flux (SHF) anomaly in the tropics (30 degrees S-30 degrees N), partially offset by the positive SHF anomaly at higher latitudes. The tropical SHF anomaly acts as a lagged response to damp the convergence of oceanic heat transport, which redistributes heat from the extratropics and the subsurface layers (100-440 m) into the upper tropical oceans (0-100 m) during the onset and peak of El Nino. These results highlight the global nature of the oceanic heat redistribution during ENSO events, as well as how the redistribution process affects the full-depth GOHC. The meridional heat exchange across 30 degrees S and 30 degrees N is driven by ocean current anomalies, while multiple processes contribute to the vertical heat exchange across 100 m simultaneously. Heat advection due to unbalanced mass transport is distinguished from the mass balanced one, with significant contributions from the meridional and zonal overturning cells being identified for the latter in the vertical direction. Results presented here have implications for monitoring the planetary energy budget and evaluating ENSO's global imprints on ocean heat content in different estimates. |
英文关键词 | ENSO Heat budgets fluxes Reanalysis data Interannual variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000452132400004 |
WOS关键词 | EQUATORIAL PACIFIC-OCEAN ; EL-NINO ; INTERANNUAL VARIABILITY ; DATA ASSIMILATION ; MODEL ; CIRCULATION ; REANALYSIS ; TRANSPORTS ; BALANCE ; VOLUME |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19431 |
专题 | 气候变化 |
作者单位 | 1.Xiamen Univ, Coll Ocean & Earth Sci, State Key Lab Marine Environm Sci, Xiamen, Peoples R China; 2.CSIRO Oceans & Atmosphere, Ctr Southern Hemisphere Oceans Res, Hobart, Tas, Australia; 3.Univ Tasmania, Sch Technol Environm & Design, Surveying & Spatial Sci, Hobart, Tas, Australia; 4.Univ New South Wales, Climate Change Res Ctr, Sydney, NSW, Australia |
推荐引用方式 GB/T 7714 | Wu, Quran,Zhang, Xuebin,Church, John A.,et al. ENSO-Related Global Ocean Heat Content Variations[J]. JOURNAL OF CLIMATE,2019,32(1):45-68. |
APA | Wu, Quran,Zhang, Xuebin,Church, John A.,&Hu, Jianyu.(2019).ENSO-Related Global Ocean Heat Content Variations.JOURNAL OF CLIMATE,32(1),45-68. |
MLA | Wu, Quran,et al."ENSO-Related Global Ocean Heat Content Variations".JOURNAL OF CLIMATE 32.1(2019):45-68. |
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