...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >The Signal of Solar Storms Embedded in Cosmogenic Radionuclides: Detectability and Uncertainties
【24h】

The Signal of Solar Storms Embedded in Cosmogenic Radionuclides: Detectability and Uncertainties

机译：太阳风暴的信号嵌入在宇宙发生的放射性核素:检测能力和不确定性

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 threat that solar storms pose to our ever-modernizing society has gathered significant interest in the recent past. This is partly due to the discoveries of large peaks in the content of cosmogenic radionuclides such as radiocarbon (~(14)C) in tree rings and beryllium-10 (~(10)Be) and chlorine-36 (~(36)Cl) in ice cores that were linked to extreme solar storms dated to the past millennia. To better assess the threat that they represent, we need to better quantify the relationship between their energy spectrum and their magnitude with respect to the content of the radionuclides that we measure in environmental archives such as ice cores. Here, we model the global production rate that the 59 largest particle storms coming from the Sun have induced for ~(10)Be, ~(14)C, and ~(36)Cl during the past 70 years. We also consider the deposition flux in ~(10)Be and ~(36)Cl over the high latitudes where all Greenland ice cores are located. Our analysis shows that it is unlikely that any recent solar particle event can be detected in 10Be from ice cores. By relating these values to empirical data from ice cores, we are able to quantify different detection limits and uncertainties for ~(10)Be and ~(36)Cl. Due to different sensitivities to solar energetic particles, we assess that ~(10)Be may only be suitable to detect a limited number of extreme solar storms, while ~(36)Cl is suitable to detect any extreme particle event. This implies that the occurrence-rate estimates of extreme solar storms, based mainly on ~(14)C and ~(10)Be, relate to a small population of potential events.
机译：太阳风暴对我们的威胁ever-modernizing社会聚集显著在最近的过去。发现大山峰的内容宇宙发生的放射性核素的放射性碳等(~ (14) C)在树木年轮和beryllium-10 (~ (10))和chlorine-36 (~ (36) Cl)的冰核与极端的太阳风暴追溯到过去几千年。表示,我们需要更好的量化他们的能量谱和之间的关系他们的大小对的内容我们测量的放射性核素环保档案如冰核。我们模型的全球产量59最大的粒子风暴来自太阳诱导的~ (10),~ (14)C,和~ (36)Cl过去的70年。沉积通量的~(10)和~ (36)Cl高纬度地区所有格陵兰冰芯所在地。最近的太阳粒子事件发现在10来自冰核。这些值,经验数据从冰核,我们能够量化不同的检测限制吗和不确定性对~(10)和~ (36)Cl。不同的敏感太阳能精力充沛粒子,根据我们的评估,可能只是~ (10)适用于检测有限数量的极端太阳风暴,~ (36)Cl是合适的检测任何极端粒子事件。发生率估计极端太阳能风暴,主要基于~ (14)C和~ (10),与一个小人口潜在的事件。

著录项

相似文献

  • 外文文献
  • 中文文献
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