在全新世纪期间,持续的太阳影响北大西洋气候
1Lamont-Doherty Earth Observatory of Columbia University, Route 9W, Palisades, NY 10964, USA. gcb@ldeo.columbia.edu
Science (New York, N.Y.)
|December 12, 2001
概括
太阳的变化影响了整个全新纪的北大西洋气候. 由宇宙核化物 (碳-14和-10) 和北大西洋漂流冰代理物之间的相关性证明了这一点,这表明"1500年"周期的太阳强迫机制.
科学领域:
- 古气候学 古气候学
- 太阳物理 太阳物理
- 海洋学 海洋学 海洋学
背景情况:
- 北大西洋气候系统表现出周期性模式,包括一个突出的气候变化.
- 1500年的时间是1500年.
- 一个循环,一个周期.
研究的目的:
- 为了研究太阳活动变化的潜在影响北大西洋表面条件在整个全新世纪的时代.
- 探索太阳强迫可能影响海洋水文和深水形成的机制.
主要方法:
- 对深海沉积物核心的分析,以重建过去的环境条件.
- 测量宇宙原核化物 (碳-14和-10) 作为太阳活动的代理.
- 太阳代理,漂流冰代理和海洋学数据之间的相关性分析.
主要成果:
- 在碳-14和-10生产率的推断变化和漂流冰代理的百年到千年规模变化之间发现了强烈的相关性.
- 亚极北大西洋的地表风和海洋水文图显示,与全新纪太阳能输出变化有明显的联系.
- 这些发现表明,北大西洋北大西洋的Holocene部分存在太阳强迫机制.
- 1500年的时间是1500年.
- 一个循环,一个周期.
结论:
- 太阳的变化可能在整个全新世纪对北大西洋气候的调节中发挥了重要作用.
- 表面水文学的变化可能影响了北大西洋深水产量,放大了太阳能信号并可能影响全球气候.
- 太阳强迫机制是北大西洋中观察到的全新纪气候周期的合理驱动因素.
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