Discrete wavelet transform-based investigation into the variability of standardized precipitation index in Northwest China during 1960-2014
文献类型：期刊论文
| 作者 | Yang, Peng1,2; Xia, Jun1,3 ; Zhan, Chesheng1; Zhang, Yongyong1; Hu, Sheng1,2
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| 刊名 | THEORETICAL AND APPLIED CLIMATOLOGY
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| 出版日期 | 2018-04-01 |
| 卷号 | 132期号:1-2页码:167-180 |
| 关键词 | Standardized Precipitation Index Trend analysis Discrete wavelet transforms Northwest China |
| ISSN号 | 0177-798X |
| DOI | 10.1007/s00704-017-2063-3 |
| 通讯作者 | Xia, Jun(xiaj@igsnrr.ac.cn) |
| 英文摘要 | In this study, the temporal variations of the standard precipitation index (SPI) were analyzed at different scales in Northwest China (NWC). Discrete wavelet transform (DWT) was used in conjunction with the Mann-Kendall (MK) test in this study. This study also investigated the relationships between original precipitation and different periodic components of SPI series with datasets spanning 55 years (1960-2014). The results showed that with the exception of the annual and summer SPI in the Inner Mongolia Inland Rivers Basin (IMIRB), spring SPI in the Qinghai Lake Rivers Basin (QLRB), and spring SPI in the Central Asia Rivers Basin (CARB), it had an increasing trend in other regions for other time series. In the spring, summer, and autumn series, though the MK trends test in most areas was at the insignificant level, they showed an increasing trend in precipitation. Meanwhile, the SPI series in most subbasins of NWC displayed a turning point in 1980-1990, with the significant increasing levels after 2000. Additionally, there was a significant difference between the trend of the original SPI series and the largest approximations. The annual and seasonal SPI series were composed of the short periodicities, which were less than a decade. The MK value would increase by adding the multiple D components (and approximations), and the MK value of the combined series was in harmony with that of the original series. Additionally, the major trend of the annual SPI in NWC was based on the four kinds of climate indices (e.g., Atlantic Oscillation [AO], North Atlantic Oscillation [NAO], Pacific Decadal Oscillation [PDO], and El Nino-Southern Oscillation index [ENSO/NINO]), especially the ENSO. |
| WOS关键词 | HUAI RIVER-BASIN ; ARID REGION ; TEMPERATURE TRENDS ; DROUGHT ; EXTREMES ; INDIA ; RAINFALL ; PROVINCE ; MODELS ; AREA |
| 资助项目 | National Basic Research Program of China (973 Program)[2012CB956204] ; National Natural Science Foundation of China[NSFC: 41571019] ; National Natural Science Foundation of China[41371043] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000428241200013 |
| 出版者 | SPRINGER WIEN |
| 资助机构 | National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/57246]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xia, Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430000, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Peng,Xia, Jun,Zhan, Chesheng,et al. Discrete wavelet transform-based investigation into the variability of standardized precipitation index in Northwest China during 1960-2014[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2018,132(1-2):167-180. |
| APA | Yang, Peng,Xia, Jun,Zhan, Chesheng,Zhang, Yongyong,&Hu, Sheng.(2018).Discrete wavelet transform-based investigation into the variability of standardized precipitation index in Northwest China during 1960-2014.THEORETICAL AND APPLIED CLIMATOLOGY,132(1-2),167-180. |
| MLA | Yang, Peng,et al."Discrete wavelet transform-based investigation into the variability of standardized precipitation index in Northwest China during 1960-2014".THEORETICAL AND APPLIED CLIMATOLOGY 132.1-2(2018):167-180. |
入库方式： OAI收割
来源：地理科学与资源研究所
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