DOC-SWEET: Deep Ocean Circulation during Super Warm Early Eocene Temperatures and climate: understanding the response of the Earth to high CO2 throug

该项目侧重于始新世气候的表面特征，特别强调海洋表面温度、大气二氧化碳水平，并模拟始新世早期气候最佳时期(EECO)的气候。由于所使用的模型UKESM的复杂性和分辨率，禁止进行非常长的模拟，并且在很大程度上忽略了深海。在这个联合学生项目中，我们使用模型和数据相结合的方法来探索EECO期间的深海环流。这名学生将使用钕同位素代理来重建EECO(52-50 Ma)一系列全球位置的深海指纹。随后将使用HadCM3L模型对重建的深海环流的一阶图像进行敏感性研究。此模型的分辨率低于更复杂的UKESM，但仍高于以前的研究。学生将完全融入甜蜜，并将从DeepMIP社区的国际合作中受益。将主项目的模拟结果与UKESM进行比较，也将为STEAM带来附加值，特别是对1000年后UKESM模式中海洋状态的相对平衡的评估。

The SWEET project focusses on the surface characteristics of the Eocene climate, with particular emphasis on sea surface temperature, atmospheric carbon dioxide levels, and modelling the climate of the Early Eocene Climatic Optimum (EECO). Due to the complexity and resolution of the model used, UKESM, very long simulations are prohibited and the deep ocean is largely ignored. In this Associated Studentship we explore deep ocean circulation during the EECO using a combined model-data approach. The student will use the neodymium isotope proxy to reconstruct deep ocean fingerprints across a range of global locations for the EECO (52-50 Ma). The reconstructed first order picture of deep ocean circulation will subsequently be subjected to sensitivity studies using the HadCM3L model. This model has a lower resolution than the more complex UKESM, but still a higher resolution than previous studies.The student will be fully integrated into SWEET, and will benefit from international collaborations across the DeepMIP community. Comparison with the UKESM modelling results from the main project will also bring added value to SWEET, in particular an assessment of the relative equilibrium of the ocean state in the UKESM model after 1000 years.