Global simulations of ocean-sea ice-biogeochemistry model FESOM2.1-REcoM3 with eddy-permitting grid resolution and terrigenous inputs in the Arctic Ocean

This project includes global model simulations with the global multi-resolution Finite Volume Sea Ice-Ocean Model (FESOM version 2.1) coupled to the Regulated Ecosystem Model (REcoM version 3). For this project, model simulations include a representation of terrigenous inputs from both rivers and coastal erosion and were run from 1950-2100 on a model grid with eddy-permitting (4.5 km) resolution at pan-Arctic scale. The ocean-only model simulations were forced at the ocean surface with 3-hourly atmospheric output from the AWI Climate Model. The project includes model experiments under four “Shared Socioeconomic Pathways” emission scenarios, a control run and sensitivity experiments.
This work is part of the BMBF project nuArctic (03F0918A) aiming at "better understanding of the nutrient cycles in the ‘new’ Arctic Ocean and implications for future primary productivity and carbon export". Computing resources were provided by the North-German Supercomputing Alliance (HLRN) project hbk00083. This work has also received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 820989 (project COMFORT; https://comfort.w.uib.no/). COMFORT aims to assess tipping points in the coupled cycles of carbon, oxygen, and nutrients in the ocean for determining and achieving safe operating spaces.

本课题涵盖了全球多分辨率有限体积海冰-海洋模型（FESOM版本2.1）与调节生态系统模型（REcoM版本3）的耦合模拟，旨在深入探究全球范围内的模型模拟。该模拟包含来自河流和海岸侵蚀的陆源物质输入，模拟时间跨度为1950年至2100年，在包含涡旋允许（4.5公里分辨率）的全球北极尺度网格上进行。仅海洋模型的模拟通过AWI气候模型提供的每小时三次的海洋表面大气输出进行驱动。项目包括在四种“共享社会经济途径”排放情景下的模型实验、基准运行和敏感性实验。

本项研究为BMBF项目nuArctic（03F0918A）的一部分，旨在“更深入地理解‘新’北极海洋中的营养循环及其对未来初级生产力和碳输出的影响”。计算资源由北海超级计算联盟（HLRN）项目hbk00083提供。此外，本项研究还获得了欧盟Horizon 2020研究与创新计划的资助，资助协议编号为820989（项目COMFORT；https://comfort.w.uib.no/）。COMFORT项目旨在评估海洋中碳、氧和营养素耦合循环的临界点，以确定和实现安全操作空间。