Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075433 |
Dampened El Nino in the Early and Mid-Holocene Due To Insolation-Forced Warming/Deepening of the Thermocline | |
White, Sarah M.1; Ravelo, A. Christina2; Polissar, Pratigya J.3 | |
2018-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:1页码:316-326 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | El Nino-Southern Oscillation (ENSO) dominates interannual climate variability; thus, understanding its response to climate forcing is critical. ENSO's sensitivity to changing insolation is poorly understood, due to contrasting interpretations of Holocene proxy records. Some records show dampened ENSO during the early to mid-Holocene, consistent with insolation forcing of ENSO amplitude, but other records emphasize decadal-centennial fluctuations in ENSO strength, with no clear trend. To clarify Holocene ENSO behavior, we collected proxy data spanning the last similar to 12 kyr and find relatively low El Nino amplitude during the early to mid-Holocene. Our data, together with published work, indicate both a long-term trend in ENSO strength due to June insolation forcing and high-amplitude decadal-centennial fluctuations; both behaviors are shown in models. The best supported mechanism for insolation-driven dampening of ENSO is weakening of the upwelling feedback by insolation-forced warming/deepening of thermocline source waters. Elucidating the thermocline's role will help predict future ENSO change. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423431800036 |
WOS关键词 | TROPICAL PACIFIC CLIMATE ; ATMOSPHERIC CO2 RISE ; EQUATORIAL PACIFIC ; PLANKTONIC-FORAMINIFERA ; SOUTHERN-OSCILLATION ; NINO/SOUTHERN-OSCILLATION ; HOLOCENE CHANGES ; ENSO ACTIVITY ; TIME-SERIES ; MG/CA |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/27082 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95064 USA; 2.Univ Calif Santa Cruz, Dept Ocean Sci, Santa Cruz, CA 95064 USA; 3.Columbia Univ, Lamont Doherty Earth Observ, Dept Biol & Paleoenvironm, Palisades, NY USA |
推荐引用方式 GB/T 7714 | White, Sarah M.,Ravelo, A. Christina,Polissar, Pratigya J.. Dampened El Nino in the Early and Mid-Holocene Due To Insolation-Forced Warming/Deepening of the Thermocline[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(1):316-326. |
APA | White, Sarah M.,Ravelo, A. Christina,&Polissar, Pratigya J..(2018).Dampened El Nino in the Early and Mid-Holocene Due To Insolation-Forced Warming/Deepening of the Thermocline.GEOPHYSICAL RESEARCH LETTERS,45(1),316-326. |
MLA | White, Sarah M.,et al."Dampened El Nino in the Early and Mid-Holocene Due To Insolation-Forced Warming/Deepening of the Thermocline".GEOPHYSICAL RESEARCH LETTERS 45.1(2018):316-326. |
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