A palaeoclimate model for the Kimmeridgian
A palaeoclimate model for the Kimmeridgian
复制标题
启默里阶古气候模型
DOI：
10.1016/0031-0182(92)90165-2
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
B. Sellwood
中科院分区：
文献类型：
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作者：
P. Valdes;B. Sellwood
大多数使用数值大气环流模式(GCM)来模拟中生代气候的尝试都研究了晚白垩世，并集中在表面上稳定的全球气候之谜上。然而，这种气候制度持续了整个中生代，对其他时期的考察是有意义的。我们用一个相对详细和高分辨率的模型给出了晚侏罗世的积分结果。模拟的气候与现有的地质数据总体上有很好的一致性。特别是，模拟预测两极附近不会有永久性的冰盖，美国西南部的干旱条件，南欧的季节性干旱气候，以及欧洲和澳大利亚的冬季暴风雨。然而，在冬季的大部分时间里，西伯利亚和冈瓦瓦兰东南部的表面温度都降到了零度以下。
Most attempts at using numerical General Circulation Model (GCM) to simulate Mesozoic climates have studied the Late Cretaceous and have focused on the enigmaof apparently equable global climates. However, this climate regime lasted throughout the Mesozoic and it is of interest to examine other periods. We present the results of an integration for the late Jurassic using a relatively detailed and high-resolution model. There is generally good agreement between the model climate and the existing geological data. In particular, the simulation predicts no permanent ice cover near either pole, arid conditions over the southwestern USA, seasonally arid climate over southern Europe, and winter storminess over Europe and Australia. However, the surface temperatures over Siberia and Southeastern Gondwanaland drop below zero for a significant part of the winter.