它们“与洋面气候出现大面积和突然的变化有关,”在《美国国家科学院学报》上发表文章的波茨坦研究所气候学家马蒂亚斯·霍夫曼和斯特凡·拉姆斯托夫认为。
They "were associated with large and abrupt changes in surface climate," wrote Potsdam Institute climatologists Matthias Hofmann and Stefan Rahmstorf in pnas.
[吴祥定,湛绪志。样条函数拟合在年轮气候学分析中的可适用性。气象学报,1991,49(1):100-103。]。
Wu Xiangding, Zhan Xuzhi. The applicability of spline function fitting in dendroclimatological analysis. Acta Meteorologica Sinica, 1991,49(1):100-103.
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