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

提供资金是为了建立在婆罗洲洞穴古气候学研究的基础上，将他们的研究扩展到该地区的洞穴，并调查三个关键的气候问题：1）热带降水对间冰期期间头顶辐射的幅度和相位变化有何反应？ 2) 西太平洋暖池（WPWP）降水在最近几次终止中的表现如何？ 3）WPWP中是否出现了打包成邦德循环的Dansgaard/Oeschger（D/O）和Heinrich事件的特征模式？过去50万年表明了多个间冰期状态，其间热带边界条件（即海平面、海面温度、大气二氧化碳水平）大致恒定，但太阳辐射强迫却截然不同。研究人员将利用间冰期的石笋记录来研究热带对日照强迫变化的敏感性。这项研究将支持一名女性博士后研究员，并从新档案中提供新的气候记录，这可能会加深人们对人口稠密的热带地区季风功能的了解。

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.