Plausible Last Interglacial Antarctic ice sheet changes do not fully explain Antarctic ice core water isotope records

HadCM3 is used to simulate the response of δ18O to plausible Antarctic surface elevation changes during the Last Interglacial (LIG) period. Here, we perform seven simulations including two preindustrial (PI) simulations and five LIG simulations with three plausible Antarctic Ice Sheet (AIS) scenarios. Each .nc file is one simulation with the specific AIS orography in the PI/LIG, having three variables surface elevation (Orog), δ18O, precipitation, and surface air temperature. All our HadCM3 simulations are integrated for 70 years to ensure that the atmosphere and surface ocean are in a quasi-equilibrium. The last 50 years of each simulation are saved in this dataset.哈德莱环流模式3（HadCM3）被用于模拟末次间冰期（Last Interglacial, LIG）时段内，氧同位素18（δ¹⁸O）对合理假定的南极地表高程变化的响应。本研究共开展7组模拟试验，其中包含2组工业化前（preindustrial, PI）模拟试验，以及基于3种合理南极冰盖（Antarctic Ice Sheet, AIS）情景的5组末次间冰期模拟试验。每个.nc文件对应1组模拟，对应工业化前或末次间冰期场景下的特定南极冰盖地形，包含地表高程（Orog）、δ¹⁸O、降水与地表气温4个变量。本研究中所有哈德莱环流模式3模拟均积分70年，以确保大气与表层海洋达到准平衡状态。本数据集仅留存每组模拟的最后50年数据。