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从南海南部到阿拉弗拉海 ,一系列低纬边缘海处在西太平洋暖池区内 .微体古生物、同位素和有机地球化学 3种标志 ,一致表明末次盛冰期时边缘海的表层水温比开放的西太平洋低得多 .冰期低海面时边缘海浅水区出露成陆 ,深水区水温下降 ,减弱了向大气输送水汽和热量的能力 ,造成暖池在冰期旋回中的多变性 .冰期时冬季风强化不仅使边缘海冬季表层水温下降、季节温差加大 ,而且为热带岛屿带来水汽 ,造成山地雪线和植被带下移 ,可能为解释“热带海区古温度之谜”提出了新途径
From the southern part of the South China Sea to the Arafura Sea, a series of low-latitude marginal seas are located in the western Pacific warm pool area. Microfacies, isotopes and organic geochemistry signify that the surface water temperature in the marginal sea was higher than the open during the last glacial Of the western Pacific Ocean.The glacial low sea surface area exposed to the shallow waters of the continental shelf, and the water temperature in the deepwater areas decreased, thus weakening the ability to transport water vapor and heat to the atmosphere, resulting in the variability of the warm pool in glacial cycles. Wind intensification not only makes surface temperature of winter in the marginal sea decrease, but also increases the seasonal temperature difference, but also brings moisture to the tropical island, which leads to the downward movement of the snow line and vegetation belt in the mountainous area. It may provide a new way to explain “the mystery of ancient temperature in the tropical sea”