P2C2: Stalagmite Records of Tropical Climate from Northern Borneo: Interglacial and Termination Structure Across Several Glacial Cycles

在先前婆罗洲洞穴研究的基础上，提供资金，将他们的研究从该地区的洞穴扩展到该地区，并研究三个关键的气候问题：1)间冰期热带降水对头顶辐射的振幅和相位变化的响应是什么？2)西太平洋暖池（WPWP）降水在过去几个终止期的表现如何？3) Dansgaard/Oeschger （D/O）和Heinrich事件打包成Bond Cycles的特征模式是否出现在WPWP中？过去50万年表明了多个间冰期状态，在此期间，热带边界条件（即海平面、海面温度、大气二氧化碳水平）大致恒定，但太阳日照强迫却大不相同。研究人员将利用间冰期的石笋记录来调查回归线对日照强迫变化的敏感性。这项研究将支持一位女性博士后，并从一个新的档案中提供新的气候记录，这可能会让人们更好地了解季风在人口稠密的热带地区的功能。

Funding is provided to build upon previous research on paleoclimatology from speleothems in Borneo to extend their research from caves in this region and investigate three key climate questions: 1) What is the response of precipitation in the tropics to changes in the amplitude and phasing of overhead radiation during interglacials? 2) What is the behavior of the Western Pacific Warm Pool (WPWP) precipitation over the last several terminations? 3)Does the characteristic pattern of Dansgaard/Oeschger (D/O) and Heinrich events packaged into Bond Cycles appear in the WPWP?The last 500,000 years indicate multiple interglacial states during which tropical boundary conditions (i.e., sea level, sea-surface temperatures, atmospheric carbon dioxide levels) are roughly constant, but solar insolation forcing is very different. The researchers will use the stalagmite records from interglacials to investigate the Tropic's sensitivity to changes in insolation forcing. This research will support a female post-doctoral fellow and provide new climate records from a new archive that may bring greater understanding of the functioning of monsoons in the heavily populated Tropics.