课题基金 / 基金详情

Long-term variations of solar activity and cosmic rays based on the carbon-14 content in tree rings

Long-term variations of solar activity and cosmic rays based on the carbon-14 content in tree rings
基于树木年轮中碳 14 含量的太阳活动和宇宙射线的长期变化
批准号:
21740162
负责人:
MIYAHARA Hiroko
金额:
$3.74万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2010

项目摘要

项目成果

MIYAHARA Hiroko的其他基金

相似基金

相关文献

中文摘要
翻译
点击翻译按钮获取中文摘要
英文摘要
We have measured the carbon-14 content in tree rings with annual time resolution and have detected the lengthening/shortening of the eleven-year solar cycles in the past. Lengths of the eleven-year solar cycles reflect the level of solar magnetic activity. The obtained results have suggested that there is no significant millennial-scale trend in solar activity level.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
DOI: --
发表时间:
期刊:
影响因子: --
作者: []
通讯作者:
Determination of absolute ages of annual scale GCR enhancements during the Maunder Minimum based on high precision measurements of radiocarbon content in tree rings
  • 批准号:
    23654080
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
  • 资助金额:
    $2.41万
  • 财政年份:
    2011
  • 负责人:
    MIYAHARA Hiroko
  • 依托单位:
海外基金