Establishment of 1000-year long Kiso hinoki tree-ring chronology and the reconstruction of the past climate for Central Japan

我们调查的年轮气候研究结果在日本中部使用年轮宽度数据从生活树的扁柏。二月至四月的温度已经重建了公元1719年至1961年期间。这种重建，其中五个冷却事件确定为小冰期后期，验证了对其他气候代理。这与以前根据日本和中国的文献记录估计的寒冷期有合理的一致性。一个非常好的协议也被发现为韩国的树木气候重建，这表明在西太平洋沿岸的冬季风的年度活动持续时间比现在在19^<th>世纪。持续的饥荒和异常气候现象的记录支持了18世纪80年代、19世纪10年代和19世纪30年代寒冷时期的重建。这表明，扁柏年表有足够的潜力来重建气候变化进一步到过去。

We investigated the results of a dendroclimatic study in Central Japan using ring width data from living trees of Hinoki cypress. February--April temperatures have been reconstructed for the period AD 1719--1961. This reconstruction, with which five cooling events were determined for the late Little Ice Age, was validated against other climate proxies. There is a reasonable agreement with cold periods previously estimated from documentary records in Japan and China. A notably good agreement is also found for a dendroclimatic reconstruction for Korea, suggesting that the annual activity of the winter monsoon in the western Pacific Rim persisted longer in the 19^<th> century than at present. Records of constant famines and unusual climatic phenomena support the reconstruction of the cold periods in the 1780s, 1810s and 1830s. It is thus revealed that the Hinoki chronology has enough potential to reconstruct the climatic variability further into the past.