地理学报 ›› 2017, Vol. 72 ›› Issue (3): 382-396.doi: 10.11821/dlxb201703002

• 气候变化与地表过程 • 上一篇    下一篇

基于杭州偏晚终雪记录的南宋(1131-1270年)气候再推断

刘浩龙1(), 戴君虎1, 闫军辉2, 何凡能1, 葛全胜1(), 牟重行3   

  1. 1. 中国科学院地理科学与资源研究所 中国科学院陆地表层格局与模拟重点实验室,北京 100101
    2. 信阳师范学院城市与环境学院,信阳 464000
    3. 台州市气象局,台州 318000
  • 收稿日期:2016-09-28 修回日期:2016-11-28 出版日期:2017-03-15 发布日期:2017-05-03
  • 作者简介:

    作者简介:刘浩龙(1976-), 男, 江苏连云港人, 博士, 助理研究员, 中国地理学会会员(S110010196M), 从事历史地理与全球变化研究。E-mail: liuhl@igsnrr.ac.cn

  • 基金资助:
    国家自然科学基金项目(41427805);科技基础性工作专项项目(2014FY210900, 2011FY120300)

Temperature variations evidenced by records on the latest spring snowing dates in Hangzhou of eastern China during 1131-1270 AD

Haolong LIU1(), Junhu DAI1, Junhui YAN2, Fanneng HE1, Quansheng GE1(), Chongxing MU3   

  1. 1. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. The College of Urban and Environmental Sciences, Xinyang Normal University, Xinyang 464000, Henan, China
    3. The Taizhou Meteorological Bureau, Taizhou 318000, Zhejiang, China
  • Received:2016-09-28 Revised:2016-11-28 Online:2017-03-15 Published:2017-05-03
  • Supported by:
    National Natural Science Foundation of China, No.41427805;Basic Research Project of the Ministry of Science and Technology, No.2014FY210900, No.2011FY120300

摘要:

本文整理、考订了南宋时期杭州偏晚终雪记录,诊断了此类资料的气候指示意义,进行了各年代不同数量终雪日期值至对应年代平均终雪日期值的转换,进而分析了重建序列所指示的温度变化特征与其他文献证据、气候变化重建结果之间的一致性。结果表明:① 史料记述的杭州偏晚终雪现象系以惊蛰以后为标准,且不包括霰和冰粒类微量降雪类型,其有着明确的气候指示意义(-0.34 oC/10d,R2 = 0.37,P<0.001),可有效用于温度重建。② 基于非线性的波尔兹曼函数,以不同样本量偏晚终雪日期值可有效估算10年平均终雪日期,其外推结果较之线性函数和二项式函数具有更小的不确定性。③ 南宋时期杭州春季的平均温暖程度大致相当于1951-1980年,该时期在百年尺度上可划分为1131-1170年的寒冷期和1171-1270年的温暖期。其中,后一阶段有1181-1200年和1221-1240年两个亚冷期。④ 南宋时期杭州10年平均终雪日期的变化与中国其他地区温度变化的代用证据和重建结果具有较好的一致性,并与太平洋十年涛动的冷暖位相变化比较吻合,这可能说明了中世纪暖期太平洋十年涛动对中国大部分地区气候所具有的共同影响。本文为更深入认识12-13世纪中国东部季风区的气候变化特征提供了新的证据。

关键词: 南宋时期, 杭州, 终雪记录, 气候意义, 变化特征

Abstract:

We collected and verified documentary records of the latest spring snowing dates (LSSD) in Hangzhou during the Southern Song Dynasty. Further, the statistical correlation between this proxy and February-April mean temperature in this region was examined, and samples later than the perennial mean of the LSSD during the study period were transformed into the decadal mean of LSSD by means of Boltzmann function. General characteristics of this reconstructed LSSD series with a 10-year temporal resolution were analyzed, compared with other documentary evidences and reconstructed climate series in China for 1131-1270 AD. The results suggested that: (1) Records of the LSSD in Hangzhou during the study period did not refer to ice pellets and graupels, which had an explicit climatic significance (-0.34 oC/10d, R2=0.37, P<0.001). However, when this proxy was used to reconstruct temperature changes, all dates should be converted in Gregorian style and meet the same criterion of "true Qi" as the Chinese traditional calendar after 1929 AD. (2) The decadal mean of LSSD can be effectively estimated by using the forefront of LSSD in the decade on the basis of Boltzmann function, whose extrapolation has a less uncertainty than that on the basis of linear models or polynomial models. (3) The spring in Hangzhou during 1131-1270 AD was almost as warm as the period 1951-1980 AD. At the centennial scale, this period can be divided into two phases: the cold 1131-1170 AD and the warm 1171-1270 AD. In the latter, 1181-1200 AD and 1221-1240 AD were two cold intervals at the multi-decadal scale. (4) The reconstructed LSSD series was well consistent with other documentary evidences and reconstructed climate series in China for 1131-1270 AD, which may reflect the mutual influence on the climate over most of China imposed by the Pacific Decadal Oscillation (PDO).

Key words: Southern Song Dynasty, Hangzhou, the latest spring snowing dates, climatic significance, general characteristics of temperature variation