Tropical climate variability and the influence of environmental stressors as recorded in Orbicella and Siderastrea coral skeletons from Belize

伯利兹 Orbicella 和 Siderastrea 珊瑚骨骼中记录的热带气候变化和环境压力源的影响

• 批准号: 468437906
• 负责人: Professor Dr. Eberhard Gischler
• 金额: --
• 依托单位: Institut für Kernphysik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/468437906?language=en
• 关键词: Tropical; climate; variability; influence; environmental

In this project, we aim at systematically analyzing coral archives from Belize barrier and atoll reefs, the largest reef system in the Atlantic, with a multi-proxy approach. We will analyze 18O and Sr/Ca at high resolution in six existing cores from various reef environments and combine geochemical with sclerochronological data (extension rate, density, calcification rate) covering the 19th and 20th century. We will compare these data with environmental parameters, gridded instrumental climate data, and expressions of climate modes including the El-Niño Southern Oscillation (ENSO), the Atlantic Multidecadal Oscillation (AMO), and the North Atlantic Oscillation (NAO). With this approach, we will be able to contribute to the central scientific question of SPP 2299 of deciphering the interaction between global climate change and modes of tropical climate variability and their combined influence on reef ecosystems in a warming world. Also, we will be able to provide answers to overarching questions as to how rising SSTs and ocean acidification interact with local stressors in this major Atlantic coral reef area.

在这个项目中，我们的目标是系统地分析珊瑚档案从伯利兹堡礁和环礁礁，在大西洋最大的珊瑚礁系统，与多代理的方法。我们将在不同的礁环境和联合收割机地球化学与硬年代学数据（延伸率，密度，钙化率）覆盖19和20世纪的六个现有的核心在高分辨率下分析18 O和Sr/Ca。我们将把这些数据与环境参数、网格化的仪器气候数据以及包括厄尔尼诺南方涛动（ENSO）、大西洋年代际振荡（AMO）和北大西洋涛动（NAO）在内的气候模态的表达进行比较。通过这种方法，我们将能够为SPP 2299的核心科学问题做出贡献，即破译全球气候变化和热带气候变异模式之间的相互作用，以及它们对变暖世界中珊瑚礁生态系统的综合影响。此外，我们将能够提供答案的首要问题，如上升的SST和海洋酸化如何与当地的压力在这个主要的大西洋珊瑚礁地区的相互作用。