Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6057 |
Modulation of wet-season rainfall over Iran by the Madden-Julian Oscillation, Indian Ocean Dipole and El Nino-Southern Oscillation | |
Pourasghar, Farnaz1; Oliver, Eric C. J.2,3,4; Holbrook, Neil J.3,4 | |
2019-08-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:10页码:4029-4040 |
文章类型 | Article |
语种 | 英语 |
国家 | Iran; Canada; Australia |
英文摘要 | The intra-seasonal variation of precipitation over Iran is examined in terms of the combined effects of the Madden-Julian Oscillation (MJO), Indian Ocean Dipole (IOD) and El Nino-Southern Oscillation (ENSO), using daily observations during the wet season (October-May) from 1961 to 2015. We have examined how the probability of daily rainfall above the upper tercile varies across MJO phases during positive and negative IOD and ENSO states. The results indicate that the response of Iran's wet-season rainfall to the MJO is affected more by large-scale atmospheric variations associated with the IOD than by ENSO. The negative (positive) IOD strengthens (suppresses) the MJO-rainfall relationship in the wet and dry MJO phases. The variation in the atmospheric variables (relative humidity and vertical velocity) indicates more (less) humidity and upwards (downwards) motion which increases (decreases) precipitation in wet (dry) MJO phases during the negative IOD. The rainfall relationship with the MJO during the negative IOD is statistically significant, while the relationship during the positive IOD is weak; and no significant relationship is found during either phase of ENSO. |
英文关键词 | Indian Ocean Dipole intra-seasonal variability Madden-Julian Oscillation rainfall probability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000479031900010 |
WOS关键词 | TEMPORAL VARIABILITY ; SPATIAL-PATTERNS ; AUTUMN RAINFALL ; ENSO ; PRECIPITATION ; MJO ; DROUGHT |
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/185689 |
专题 | 气候变化 |
作者单位 | 1.Bur Meteorol, Res Dept, Tabriz, Iran; 2.Dalhousie Univ, Dept Oceanog, Halifax, NS, Canada; 3.Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas, Australia; 4.Univ Tasmania, ARC Ctr Excellence Climate Extremes, Hobart, Tas, Australia |
推荐引用方式 GB/T 7714 | Pourasghar, Farnaz,Oliver, Eric C. J.,Holbrook, Neil J.. Modulation of wet-season rainfall over Iran by the Madden-Julian Oscillation, Indian Ocean Dipole and El Nino-Southern Oscillation[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(10):4029-4040. |
APA | Pourasghar, Farnaz,Oliver, Eric C. J.,&Holbrook, Neil J..(2019).Modulation of wet-season rainfall over Iran by the Madden-Julian Oscillation, Indian Ocean Dipole and El Nino-Southern Oscillation.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(10),4029-4040. |
MLA | Pourasghar, Farnaz,et al."Modulation of wet-season rainfall over Iran by the Madden-Julian Oscillation, Indian Ocean Dipole and El Nino-Southern Oscillation".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.10(2019):4029-4040. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论