...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Asian earth sciences >Temperature seasonality and ENSO variability in the northern South China Sea during the Medieval Climate Anomaly interval derived from the Sr/Ca ratios of Tridacna shell
【24h】

Temperature seasonality and ENSO variability in the northern South China Sea during the Medieval Climate Anomaly interval derived from the Sr/Ca ratios of Tridacna shell

机译：从三角龙壳的Sr / Ca比值推算出中世纪气候异常间隔期间南海北部的温度季节性和ENSO变异性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The nature of how the El Nino-Southern Oscillation (ENSO) and its seasonality respond to warmer climate is critical knowledge to predict future climates under the expected anthropogenic warming scenario. In this study, a sub-fossil Tridacna gigas specimen was collected from the northern SCS and AMS(14)C dating suggested that the animal lived around AD 1099, during the Medieval Climate Anomaly (MCA) interval, the most recent natural warm period of the late Holocene. Monthly Sr/Ca ratios were determined by the ICP-OES measurements and a 30-year long SST record was calculated based on a Sr/Ca-SST calibration equation. The results showed that the SST seasonality for this 30-year window around AD 1099 was about 3.11 degrees C, which is smaller than the modern warm period (i.e., about 4.36 degrees C for AD 1994 similar to 2005 interval). This new result is consistent with another published Tridacna gigas record that was dated around AD 990 from the northern SCS. The signals of ENSO activity were also extracted from the reconstructed SST record and statistical analyses yielded 9 El Nino events and 8 La Nina events within the 30-year record, indicating that the frequency of ENSO activity around AD 1099 was similar to the modern instrumental period.
机译：厄尔尼诺-南方涛动（ENSO）及其季节性如何响应气候变暖的本质是在预期的人为变暖情景下预测未来气候的关键知识。在这项研究中，从北部SCS收集了一个亚化石的Tridacna gigas标本，并且AMS（14）C的年代表明该动物在中世纪气候异常（MCA）间隔（即最近的自然暖温期）期间生活在公元1099年左右。全新世晚期。通过ICP-OES测量确定每月的Sr / Ca比值，并根据Sr / Ca-SST校准方程式计算30年的SST记录。结果表明，在公元1099年左右的30年窗中，海温的季节性约为3.11摄氏度，这比现代暖期要小（即公元1994年的气温约为4.36摄氏度，与2005年的间隔相似）。这一新结果与另一个已出版的Tridacna gigas记录相吻合，该记录可追溯到公元990年左右，来自北部SCS。还从重建的SST记录中提取了ENSO活动的信号，并进行了统计分析，在30年的记录内产生了9次厄尔尼诺事件和8次拉尼娜事件，这表明ENSO活动的频率类似于公元1099年。

著录项

  • 来源
    《Journal of Asian earth sciences》 |2019年第15期|103880.1-103880.9|共9页
  • 作者

    Liu Chengcheng; Yan Hong; Fei Haobai; Ma Xiaolin; Zhang Wenchao; Shi Ge; Soon Willie; Dodson John; An Zhisheng;

  • 作者单位

    Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Shaanxi Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Shaanxi Peoples R China|CAS Ctr Excellence Quaternary Sci & Global Change Xian 710061 Shaanxi Peoples R China|Qingdao Natl Lab Marine Sci & Technol Qingdao Shandong Peoples R China;

    Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Shaanxi Peoples R China;

    Ocean Univ China Coll Marine Geosci Qingdao 266100 Shandong Peoples R China;

    Harvard Smithsonian Ctr Astrophys 60 Garden St Cambridge MA 02138 USA;

    Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Shaanxi Peoples R China|Univ Wollongong Sch Earth Atmospher & Life Sci Wollongong NSW 2500 Australia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Tridacna; Sr/Ca; SST; Seasonality; ENSO;

    机译：Tridacna;锶/钙;SST;季节性;ENSO;

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号