Global synthesis of surface conditions and climate trends during the MIS11 interglacial (GLOSINT11)

海洋同位素第11阶段（MIS11），大约40万年前，提供了最接近全新世的地球绕太阳轨道的配置和由此产生的日照。由于低岁差强迫，因为地球的偏心率是在最低限度，其他气候因素，如温室气体的相对重要性可能是在MIS11期间高于其他温暖时期和可比的全新世没有人为的影响。由于这些原因，MIS11代表了测试气候模型的一个有希望的基础。到目前为止，可用于这种数据模式比较的古气候数据分散在文献中，没有MIS11的地表条件和气候趋势空间格局的天气图。该项目的目的是综合现有的海洋，陆地和冰芯记录的关键表面条件（温度，湿度）在整个异常长的MIS11间冰期，并建立表面条件异常的空间和时间模式。这种合成将使我们能够测试地球表面的半球间和热带到极点的温度梯度是否与全新世相当，以及MIS11期间的气候变化趋势是否与日照或温室气体强迫更加一致。

Marine Isotope Stage 11 (MIS11), ~400,000 years ago, provides the nearest analog to the Holocene in terms of the configuration of the Earth’s orbit around the Sun and the resulting insolation. Because of the low precessional forcing, as the Earth’s eccentricity was at a minimum, the relative importance of other climatic factors like greenhouse gases may have been higher during MIS11 than during other warm periods and comparable to the Holocene without anthropogenic effects. For these reasons, MIS11 represents a promising ground for testing climate models. As yet, palaeoclimatic data that could be used for such data-model comparison are scattered through the literature and no synoptic picture of the surface conditions and spatial patterns of climate trends exists for MIS11. The aim of this project is to synthesize existing marine, terrestrial and ice-core records of key surface conditions (temperature, humidity) throughout the unusually long MIS11 interglacial and establish the spatial and temporal patterns of surface condition anomalies. This synthesis will allow us to test whether interhemispheric and tropical-to-pole temperature gradients at the Earth’s surface were comparable to the Holocene and whether the trends of climate change during MIS11 were more consistent with insolation or greenhouse gas forcing.