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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >Detection of the Madden–Julian Oscillation in the Indian Ocean From Satellite Altimetry
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Detection of the Madden–Julian Oscillation in the Indian Ocean From Satellite Altimetry

机译:卫星测高仪检测印度洋的马登-朱利安振荡

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摘要

The role of air–sea interaction on Madden–Julian oscillation (MJO) propagations across the tropical Indian Ocean is analyzed using integrated multimission satellite measurements of sea surface height and outgoing longwave radiation (OLR). MJO-related activity is observed in both parameters in the eastern equatorial Indian Ocean indicating a unique interaction in this region. In the eastern Indian Ocean, atmospheric conditions appear to aid in the creation of equatorial Rossby waves, while in the central and western Indian Ocean, different phases of oceanic Rossby wave propagations seem to have a strong influence on atmospheric conditions associated with the MJO. The downwelling phase of equatorial Rossby waves corresponds to a strengthening of OLR anomalies in extent and magnitude across the equatorial Indian Ocean, while the upwelling phase appears to weaken atmospheric MJO activity. This study improves climate research by identifying the MJO signal in altimetry data.
机译:利用海面高度和出射长波辐射(OLR)的综合多任务卫星测量,分析了海-气相互作用对热带印度洋上的马登-朱利安振荡(MJO)传播的作用。在赤道东印度洋的两个参数中都观察到了与MJO相关的活动,表明该地区存在独特的相互作用。在印度洋东部,大气条件似乎有助于赤道罗斯比波的产生,而在印度中部和西部,海洋罗斯比波传播的不同阶段似乎对与MJO相关的大气条件具有强烈影响。赤道Rossby波的下降阶段对应于赤道印度洋上OLR异常的程度和强度的增强,而上升阶段似乎减弱了大气MJO的活动。通过识别测高数据中的MJO信号,这项研究改善了气候研究。

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