Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-17-0265.1 |
Short-Term Solar Modulation of the Madden-Julian Climate Oscillation | |
Hood, Lon L. | |
2018-03-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:3页码:857-873 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Normalized occurrence rates of daily Madden-Julian oscillation (MJO) events are calculated as a function of phase lag relative to peaks and minima in solar ultraviolet flux occurring on the solar rotational time scale (similar to 27 days). All MJO phases and four solar maximum periods are considered (1979-83, 1989-93, 1999-2003, and 2011-15). Corresponding daily static stabilities in the tropical lower stratosphere (70-100 hPa) are calculated from ERA-Interim data and are averaged over the warm pool region. The statistical significance of occurrence-rate changes following UV peaks and minima is assessed using a Monte Carlo method. When MJO events with amplitudes greater than about 2 are considered during the December-May period (about 15% of those days), significant reductions of MJO occurrence rates and associated increases in static stability in the tropical lower stratosphere are obtained 1-7 days following solar UV peaks. Consistently, cross-correlation analyses of high-pass-filtered daily MJO amplitudes and solar UV flux during the same seasonal period produce significant negative correlations near and following solar UV peaks. Conversely, mean occurrence rates are increased and lower-stratospheric static stabilities are decreased following solar UV minima. The reductions (increases) in occurrence rate following solar UV peaks (minima) are largest when the stratospheric quasi-biennial oscillation is in its easterly phase. Little or no dependence of the solar modulation on the phase of El Nino-Southern Oscillation is obtained. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429576900009 |
WOS关键词 | QUASI-BIENNIAL OSCILLATION ; COUPLED EQUATORIAL WAVES ; ULTRAVIOLET VARIATIONS ; STRATOSPHERIC OZONE ; TROPOSPHERIC TEMPERATURE ; DECADAL VARIABILITY ; CYCLE VARIABILITY ; CIRCULATION ; SIGNALS ; MECHANISM |
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/29564 |
专题 | 地球科学 |
作者单位 | Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA |
推荐引用方式 GB/T 7714 | Hood, Lon L.. Short-Term Solar Modulation of the Madden-Julian Climate Oscillation[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(3):857-873. |
APA | Hood, Lon L..(2018).Short-Term Solar Modulation of the Madden-Julian Climate Oscillation.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(3),857-873. |
MLA | Hood, Lon L.."Short-Term Solar Modulation of the Madden-Julian Climate Oscillation".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.3(2018):857-873. |
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