| DOI: | 10.1002/2014GL062433
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| 论文题名: | How unusual is the 2012-2014 California drought? |
| 作者: | Griffin D.; Anchukaitis K.J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9478
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| EISSN: | 1944-9209
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| 出版年: | 2014
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| 卷: | 41, 期:24 | | 起始页码: | 9017
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| 结束页码: | 9023
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| 语种: | 英语
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| 英文关键词: | drought
; paleoclimate
; tree rings
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| Scopus关键词: | Forestry
; Moisture
; Soil moisture
; Drought conditions
; Last millenniums
; Natural variability
; Paleoclimate reconstruction
; Paleoclimates
; Southern California
; Tree rings
; Tree-ring chronologies
; Drought
; chronology
; drought
; paleoclimate
; precipitation (climatology)
; reconstruction
; soil moisture
; temporal variation
; tree ring
; California
; United States
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| 英文摘要: | For the past three years (2012-2014), California has experienced the most severe drought conditions in its last century. But how unusual is this event? Here we use two paleoclimate reconstructions of drought and precipitation for Central and Southern California to place this current event in the context of the last millennium. We demonstrate that while 3 year periods of persistent below-average soil moisture are not uncommon, the current event is the most severe drought in the last 1200 years, with single year (2014) and accumulated moisture deficits worse than any previous continuous span of dry years. Tree ring chronologies extended through the 2014 growing season reveal that precipitation during the drought has been anomalously low but not outside the range of natural variability. The current California drought is exceptionally severe in the context of at least the last millennium and is driven by reduced though not unprecedented precipitation and record high temperatures. Key Points Tree rings reveal California drought severity is unusual in 1200 years2012-2014 precipitation deficits severe but not exceptional in paleocontextRecord high temperatures exacerbate moisture deficit for extraordinary drought ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921872749&doi=10.1002%2f2014GL062433&partnerID=40&md5=851b69943999cce97adcc2223acd7198
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6742
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Geography, Environment and Society, University of Minnesota, Minneapolis, MN, United States
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| Recommended Citation: | |
Griffin D.,Anchukaitis K.J.. How unusual is the 2012-2014 California drought?[J]. Geophysical Research Letters,2014-01-01,41(24).
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