Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3569-1 |
Multi-year climate variability in the Southwestern United States within a context of a dynamically downscaled twentieth century reanalysis | |
Carrillo, Carlos M.1,2; Castro, Christopher L.1; Chang, Hsin-I1; Luong, Thang M.1,3 | |
2017-12-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Mexico |
英文摘要 | This investigation evaluates whether there is coherency in warm and cool season precipitation at the low-frequency scale that may be responsible for multi-year droughts in the US Southwest. This low-frequency climate variability at the decadal scale and longer is studied within the context of a twentieth-century reanalysis (20CR) and its dynamically-downscaled version (DD-20CR). A spectral domain matrix methods technique (Multiple-Taper-Method Singular Value Decomposition) is applied to these datasets to identify statistically significant spatiotemporal precipitation patterns for the cool (November-April) and warm (July-August) seasons. The low-frequency variability in the 20CR is evaluated by exploring global to continental-scale spatiotemporal variability in moisture flux convergence (MFC) to the occurrence of multiyear droughts and pluvials in Central America, as this region has a demonstrated anti-phase relationship in low-frequency climate variability with northern Mexico and the southwestern US By using the MFC in lieu of precipitation, this study reveals that the 20CR is able to resolve well the low-frequency, multiyear climate variability. In the context of the DD-20CR, multiyear droughts and pluvials in the southwestern US (in the early twentieth century) are significantly related to this low-frequency climate variability. The precipitation anomalies at these low-frequency timescales are in phase between the cool and warm seasons, consistent with the concept of dual-season drought as has been suggested in tree ring studies. |
英文关键词 | Low-frequency variability Droughts Dual-season drought Multi-year drought Twenty century reanalysis Dynamically-downscaled twenty century reanalysis WRF MTM-SVD |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415579000035 |
WOS关键词 | NORTH-AMERICAN MONSOON ; MODELING SYSTEM RAMS ; GREAT-PLAINS ; INTERANNUAL VARIABILITY ; CHRONOLOGY DEVELOPMENT ; SOUTHERN-OSCILLATION ; SUMMER RAINFALL ; TIME-SERIES ; PART II ; PRECIPITATION |
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/35819 |
专题 | 气候变化 |
作者单位 | 1.Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ 85721 USA; 2.Cornell Univ, Dept Earth & Atmospher Sci, 1121 Bradfield Hall,306 Tower Rd, Ithaca, NY 14853 USA; 3.Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City, DF, Mexico |
推荐引用方式 GB/T 7714 | Carrillo, Carlos M.,Castro, Christopher L.,Chang, Hsin-I,et al. Multi-year climate variability in the Southwestern United States within a context of a dynamically downscaled twentieth century reanalysis[J]. CLIMATE DYNAMICS,2017,49. |
APA | Carrillo, Carlos M.,Castro, Christopher L.,Chang, Hsin-I,&Luong, Thang M..(2017).Multi-year climate variability in the Southwestern United States within a context of a dynamically downscaled twentieth century reanalysis.CLIMATE DYNAMICS,49. |
MLA | Carrillo, Carlos M.,et al."Multi-year climate variability in the Southwestern United States within a context of a dynamically downscaled twentieth century reanalysis".CLIMATE DYNAMICS 49(2017). |
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