Chinese study finds 20th century warm periods are not unprecedented during the last 2,000 years
Sign of the Times,
© Yang Liu
© Yang Liu
A great deal of evidence relating to ancient climate variation is preserved in proxy data such as tree rings, lake sediments…
A great deal of evidence relating to ancient climate variation is preserved in proxy data such as tree rings, lake sediments…
中国系统的气象观测始自 20 世纪 50 年代,利用高分辨代用资料重建高信度的温度变化序列,是补充仪器观测资料不足、了解过去气候变化的重要途径。中国科学院地理科学与资源研究所研究员郑景云和博士刘洋等利用华南区域文献记载的冬季降雪南界和树木年轮资料,通过高低频…