自1500年以来,欧洲的季节性和年度温度变化,趋势和极端情况
Jürg Luterbacher1, Daniel Dietrich, Elena Xoplaki
1National Center of Competence in Research (NCCR) Climate, University of Bern, CH-3012 Bern, Switzerland. juerg@giub.unibe.ch
概括
20世纪末和21世纪初的欧洲气候比过去500年的任何时期都温暖. 历史数据显示,与20世纪相比,1500-1900年的冬季显著降温.
科学领域:
- 古气候学 古气候学
- 气候科学 气候科学
- 欧洲气候历史 欧洲气候历史
背景情况:
- 了解长期气候变化对于将当前气候变化置于环境中至关重要.
- 以前的研究表明最近的变暖趋势,但需要详细的欧洲温度重建.
研究的目的:
- 重建欧洲1500年至今的月度和季节性地表温度场.
- 为了比较最近的欧洲温度与过去500年的温度.
主要方法:
- 利用多代理数据重建过去的气候条件.
- 为欧洲开发了月度和季节性地表温度场.
主要成果:
- 20世纪末和21世纪初的欧洲气候很可能比过去500年的任何时候都温暖.
- 从1500年到1900年,欧洲的冬季大约比20世纪的平均温度低0.5°C.
- 1708/1709年的冬天是最冷的,而2003年是有史以来最热的夏天.
结论:
- 最近的欧洲气候与过去500年的气候有着显著的差异.
- 虽然冬季在早期表现出降温趋势,但最近的夏季异常温暖.
相关概念视频
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