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利用湖北清江和尚洞的两支具有精确年代的年层石笋,建立了20世纪逐年石笋碳酸盐热释光积分强度序列,调查石笋热释光对气温的响应。通过石笋热释光与现代仪器记录的气温观测资料的对比,发现和尚洞石笋保存的气候信息存在11~12年的滞后。HS4和HS6石笋热释光具有相似的变化特征,且分别与宜昌年均气温具有显著的正相关性(r_(HS4)=0.41,r_(HS6)=0.49;P<0.01);将热释光与气温进行11年的滑动平均,两者的相关性分别提高到0.84(HS4)和0.93(HS6)。基于以上观察,我们提出了一个新的古温度计。该温度计精度高(±0.2℃),使用简便,对定量重建过去气温变化历史具有潜在的应用价值。
Based on the stratospheric stalagmites of two monochromatic stalagmites at Hsiang Tung Cave, Qingjiang, Hubei Province, the thermocouple integral intensities of stalagmite carbonate in the 20th century were set up to investigate the response of stalagmite thermoluminescence to temperature. By comparing the thermoluminescence of stalagmite with the temperature records recorded by modern instruments, it is found that the climatic information stored by the stalagmite stalagmite has a lag of 11 to 12 years. The thermoluminescence of HS4 and HS6 stalagmites had similar variation characteristics, and had significant positive correlations with the annual mean temperature of Yichang respectively (r HS4 = 0.41 and HS HS = 0.49; P <0.01) The 11-year moving average with temperature has increased to 0.84 (HS4) and 0.93 (HS6), respectively. Based on the above observations, we propose a new ancient thermometer. The thermometer has a high accuracy (± 0.2 ℃) and is easy to use. It has potential application value for quantitatively reconstructing the history of temperature changes in the past.