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| DOI | 10.1029/2019JD030869 |
| The Madden-Julian Oscillation and Mean Easterly Winds | |
| Sentić S.; Fuchs-Stone Ž.; Raymond D.J. | |
| 发表日期 | 2020 |
| ISSN | 2169897X |
| 卷号 | 125期号:10 |
| 英文摘要 | A recent analytical model of the Madden-Julian Oscillation (MJO), the WISHE-moisture mode theory, successfully models all the main characteristics of the MJO, namely, that it is a planetary, unstable, and eastward propagating tropical mode. The main assumption of the WISHE-moisture mode theory is that an interplay between the global mean easterly zonal winds and moisture leads to the propagation and destabilization of the MJO. We investigate this theory by building a climatological MJO using reanalysis, OAFlux surface latent heat fluxes, and outgoing longwave radiation data and compare it to the WISHE-moisture mode. The necessary condition for the WISHE-moisture mode theory—easterly global mean zonal winds—is always present in the tropics. Comparing the zonal wind, moisture, and moisture tendency anomalies to the WISHE-moisture mode, we find that the WISHE-moisture mode theory is in agreement with the reanalysis-derived climatological MJO. Reanalysis and OAFlux surface latent heat fluxes are in agreement with the WISHE-moisture mode theory. Although meridional surface winds seem to contribute negatively to the surface latent heat flux anomaly, we show that their effect is secondary in the region of enhanced surface latent heat fluxes which moisten the boundary layer and lead to the propagation of the MJO. ©2020. The Authors. |
| 英文关键词 | easterly wind; MJO; moisture; reanalysis; WISHE |
| 语种 | 英语 |
| 来源期刊 | Journal of Geophysical Research: Atmospheres
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/186012 |
| 作者单位 | Climate and Water Consortium, New Mexico Tech, Socorro, NM, United States; Physics Department, New Mexico Tech, Socorro, NM, United States |
| 推荐引用方式 GB/T 7714 | Sentić S.,Fuchs-Stone Ž.,Raymond D.J.. The Madden-Julian Oscillation and Mean Easterly Winds[J],2020,125(10). |
| APA | Sentić S.,Fuchs-Stone Ž.,&Raymond D.J..(2020).The Madden-Julian Oscillation and Mean Easterly Winds.Journal of Geophysical Research: Atmospheres,125(10). |
| MLA | Sentić S.,et al."The Madden-Julian Oscillation and Mean Easterly Winds".Journal of Geophysical Research: Atmospheres 125.10(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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