| DOI: | 10.1007/s00382-011-1104-3
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| Scopus记录号: | 2-s2.0-84864387859
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| 论文题名: | Uncertainty in the ocean-atmosphere feedbacks associated with ENSO in the reanalysis products |
| 作者: | Kumar A.; Hu Z.-Z.
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| 刊名: | Climate Dynamics
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| ISSN: | 9307575
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| 出版年: | 2012
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| 卷: | 39, 期:3 | | 起始页码: | 575
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| 结束页码: | 588
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| 语种: | 英语
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| 英文关键词: | Coupled and uncoupled reanalyses
; Dynamical and thermodynamical processes
; ENSO feedback
; Multi-reanalysis ensemble
; Reanalysis products
; Uncertainty
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| 英文摘要: | The evolution of El Niño-Southern Oscillation (ENSO) variability can be characterized by various ocean-atmosphere feedbacks, for example, the influence of ENSO related sea surface temperature (SST) variability on the low-level wind and surface heat fluxes in the equatorial tropical Pacific, which in turn affects the evolution of the SST. An analysis of these feedbacks requires physically consistent observational data sets. Availability of various reanalysis data sets produced during the last 15 years provides such an opportunity. A consolidated estimate of ocean surface fluxes based on multiple reanalyses also helps understand biases in ENSO predictions and simulations from climate models. In this paper, the intensity and the spatial structure of ocean-atmosphere feedback terms (precipitation, surface wind stress, and ocean surface heat flux) associated with ENSO are evaluated for six different reanalysis products. The analysis provides an estimate for the feedback terms that could be used for model validation studies. The analysis includes the robustness of the estimate across different reanalyses. Results show that one of the "coupled" reanalysis among the six investigated is closer to the ensemble mean of the results, suggesting that the coupled data assimilation may have the potential to better capture the overall atmosphere-ocean feedback processes associated with ENSO than the uncoupled ones. © 2011 Springer-Verlag (outside the USA). |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/55235
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| Appears in Collections: | 过去全球变化的重建
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作者单位: | Climate Prediction Center, NCEP/NWS/NOAA, 5200 Auth Road (Suite 605), Camp Springs, MD 20746, United States
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| Recommended Citation: | |
Kumar A.,Hu Z.-Z.. Uncertainty in the ocean-atmosphere feedbacks associated with ENSO in the reanalysis products[J]. Climate Dynamics,2012-01-01,39(3)
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