Long-term oscillation of drought conditions in the western china: an analysis of pdsi on a decadal scale
文献类型：期刊论文
| 作者 | Jin Jia1,2; Wang Quan1,3; Li Lanhai1 |
| 刊名 | Journal of arid land
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 8期号:6页码:819-831 |
| ISSN号 | 1674-6767 |
| 关键词 | Decadal scale Eemd Pdsi Arid land Semiarid land |
| DOI | 10.1007/s40333-016-0089-5 |
| 通讯作者 | Wang quan(qw4academic@gmail.com) |
| 英文摘要 | Water resource availability is one of the primary limiting factors with regard to ecosystems in the western china. having a clear understanding of multi-scale drought patterns in this region is a key step for adaption and mitigation to climate change. the palmer drought severity index (pdsi) is a widely applied index to assess drought conditions. in this study, long-term monthly self-calibrated pdsi data from 1951 to 2012 were examined for drought spatiotemporal variations in the western china. the results clearly indicated that apparent spatial heterogeneities were evidenced between two sub-regions (arid land with annual precipitation less than 200 mm and semiarid land with annual precipitation between 200 to 500 mm) as well as in the entire region of the western china. ensemble empirical mode decomposition (eemd) analyses on monthly pdsi and other atmospheric variable time-series obtained from the department of civil and environmental engineering, princeton university revealed that all monthly time-series of variables could be completely decomposed into eight intrinsic mode functions (imfs) and a trend (residual). this indicates that the monthly pdsi and atmospheric variables of the semiarid area in the western china contain eight quasi-period oscillations on various timescale spanning, seasonal to decadal cycles and a trend of a larger timescale from 1951-2012. the multi-scale drought patterns identified in this research could be powerful supports for decision-making regarding coping with droughts in this region. |
| WOS关键词 | REFERENCE EVAPOTRANSPIRATION ; AGRICULTURAL DROUGHT ; CLIMATE-CHANGE ; ARID REGION ; LAND-USE ; TEMPERATURE ; INDEX ; FLUCTUATIONS ; VARIABILITY ; SIMULATIONS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000386126200001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374979 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang Quan |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Joint Res Ctr Drylands, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shizuoka Univ, Grad Sch Agr, Shizuoka 4228529, Japan |
| 推荐引用方式 GB/T 7714 | Jin Jia,Wang Quan,Li Lanhai. Long-term oscillation of drought conditions in the western china: an analysis of pdsi on a decadal scale[J]. Journal of arid land,2016,8(6):819-831. |
| APA | Jin Jia,Wang Quan,&Li Lanhai.(2016).Long-term oscillation of drought conditions in the western china: an analysis of pdsi on a decadal scale.Journal of arid land,8(6),819-831. |
| MLA | Jin Jia,et al."Long-term oscillation of drought conditions in the western china: an analysis of pdsi on a decadal scale".Journal of arid land 8.6(2016):819-831. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
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。