A 200-year annually laminated stalagmite record of precipitation seasonality in southeastern China and its linkages to ENSO and PDO.
A 200-year annually laminated stalagmite record of precipitation seasonality in southeastern China and its linkages to ENSO and PDO.
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中国东南地区200年年层状石笋降水季节记录及其与ENSO和PDO的联系
DOI：
10.1038/s41598-018-30112-6
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发表时间：
2018-08-17
影响因子：
4.6
通讯作者：
Edwards RL
中科院分区：
文献类型：
--
作者：
Zhang H;Cheng H;Spötl C;Cai Y;Sinha A;Tan L;Yi L;Yan H;Kathayat G;Ning Y;Li X;Zhang F;Zhao J;Edwards RL
在中国东南部，东亚夏季风（EASM）和非夏季风（NSM）期间的降水量基本相当，对农业和社会经济都有重要影响。本文报道了江西峨眉山洞穴石笋1810-2009年的δ 18 O记录。δ 18 Os与仪器观测资料的对比表明，δ 18 Os的变化主要受降水季节性的控制，EASM/NSM降水的比率）在年际到年代际时间尺度上受到厄尔尼诺/南方涛动（ENSO）的调制。δ 18 Os值越高（越低），则与厄尔尼诺（拉尼娜）事件相关的东亚夏季风/北半球夏季风比值越低（越高）。与ENSO和太平洋年代际振荡（PDO）的显著相关表明，SEC降水的季节性明显受海-气相互作用的影响，在ENSO/PDO的暖（冷）阶段，EASM/NSM比值较低（较高）。自2005年以来δ 18 Os的逐渐增加可能反映了在持续的人为全球变暖的情况下中太平洋厄尔尼诺现象的加强。季节降水和δ 18 Os与ENSO/PDO的关系有待进一步研究。
In southeastern China (SEC), the precipitation amount produced by the East Asian summer monsoon (EASM) is almost equivalent to that during the non-summer monsoon (NSM) period, both of them significantly affecting agriculture and socioeconomy. Here, we present a seasonally-resolved stalagmite δ18O record (δ18Os) for the interval 1810–2009 AD from E’mei cave, Jiangxi Province, SEC. The comparison between δ18Osand instrumental data indicates that the δ18Osvariability is primarily controlled by the precipitation seasonality (i.e., the ratio of EASM/NSM precipitation) modulated by the El Niño/Southern Oscillation (ENSO) on interannual to interdecadal timescales. Higher (lower) δ18Osvalues thereby correspond to lower (higher) EASM/NSM ratios associated with El Niño (La Niña) events. Significant correlations with ENSO and the Pacific Decadal Oscillation (PDO) indicate that the precipitation seasonality in SEC is remarkably influenced by ocean-atmosphere interactions, with lower (higher) EASM/NSM ratios during warm (cold) phases of ENSO/PDO. The progressive increase in δ18Ossince 2005 AD may reflect a strengthening of the central Pacific El Niño under continued anthropogenic global warming. The relationship between seasonal precipitation and δ18Oswith ENSO/PDO requires further studies.
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影响因子：
5.2
作者：
Gong, DY;Ho, CH
通讯作者：
Ho, CH
影响因子：
4.4
作者：
Schulz, M;Mudelsee, M
通讯作者：
Mudelsee, M
影响因子：
5
作者：
Orland, Ian J.;Bar-Matthews, Miryam;Valley, John W.
通讯作者：
Valley, John W.
影响因子：
--
作者：
Liu JingHua;Zhang PingZhong;Kathleen R. Johnson
通讯作者：
Kathleen R. Johnson
末次冰消期以来华中地区夏季风降水变化
影响因子：
5.3
作者：
Cai, Yanjun;Tan, Liangcheng;Wang, Xianfeng
通讯作者：
Wang, Xianfeng