Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.10.012 |
Multi-scale linkages of winter drought variability to ENSO and the Arctic Oscillation: A case study in Shaanxi, North China | |
Liu, Zhiyong1,4,5; Zhang, Xin2; Fang, Ruihong3 | |
2018-02-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 200页码:117-125 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Understanding the potential connections between climate indices such as the El Nino-Southern Oscillation (ENSO) and Arctic Oscillation (AO) and drought variability will be beneficial for making reasonable predictions or assumptions about future regional droughts, and provide valuable information to improve water resources planning and design for specific regions of interest. This study is to examine the multi-scale relationships between winter drought variability over Shaanxi (North China) and both ENSO and AO during the period 1960-2009. To accomplish this, we first estimated winter dryness/wetness conditions over Shaanxi based on the self-calibrating Palmer drought severity index (PDSI). Then, we identified the spatiotemporal variability of winter dryness/wetness conditions in the study area by using the empirical orthogonal function (EOF). Two primary sub-regions of winter dryness/wetness conditions across Shaanxi were identified. We further examined the periodical oscillations of dryness/wetness conditions and the multi-scale relationships between dryness/wetness conditions and both ENSO and AO in winter using wavelet analysis. The results indicate that there are inverse multi-scale relations between winter dryness/wetness conditions and ENSO (according to the wavelet coherence) for most of the study area. Moreover, positive multi-scale relations between winter dryness/wetness conditions and AO are mainly observed. The results could be beneficial for making reasonable predictions or assumptions about future regional droughts and provide valuable information to improve water resources planning and design within this study area. In addition to the current study area, this study may also offer a useful reference for other regions worldwide with similar climate conditions. |
英文关键词 | Drought PDSI Wavelet analysis ENSO Arctic Oscillation Shaanxi |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416394400011 |
WOS关键词 | YANGTZE-RIVER BASIN ; EL-NINO/SOUTHERN OSCILLATION ; MONSOON ; PRECIPITATION ; CLIMATE ; IMPACTS ; WAVELET ; NINO ; DRYNESS/WETNESS ; ANOMALIES |
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/38295 |
专题 | 地球科学 |
作者单位 | 1.Sun Yat Sen Univ, Dept Water Resources & Environm, Guangzhou 510275, Guangdong, Peoples R China; 2.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Peoples R China; 3.Natl Adm Surveying Mapping & Geoinformat, Geoinformat Mapping Inst 1, Xian 710054, Shaanxi, Peoples R China; 4.Sun Yat Sen Univ, Guangdong Engn Technol Res Ctr Water Secur Regula, Guangzhou 510275, Guangdong, Peoples R China; 5.Sun Yat Sen Univ, Key Lab Water Cycle & Water Secur Southern China, Guangdong High Educ Inst, Guangzhou 510275, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Zhiyong,Zhang, Xin,Fang, Ruihong. Multi-scale linkages of winter drought variability to ENSO and the Arctic Oscillation: A case study in Shaanxi, North China[J]. ATMOSPHERIC RESEARCH,2018,200:117-125. |
APA | Liu, Zhiyong,Zhang, Xin,&Fang, Ruihong.(2018).Multi-scale linkages of winter drought variability to ENSO and the Arctic Oscillation: A case study in Shaanxi, North China.ATMOSPHERIC RESEARCH,200,117-125. |
MLA | Liu, Zhiyong,et al."Multi-scale linkages of winter drought variability to ENSO and the Arctic Oscillation: A case study in Shaanxi, North China".ATMOSPHERIC RESEARCH 200(2018):117-125. |
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