HighRes_highLat_SO FESOM1.4-REcoM2 model simulations to project future change in the coupled physical-biogeochemical system simA SSP585 variableAtmCO2 variableClimate

Project: Global simulations of ocean-sea ice-biogeochemistry model FESOM1.4-REcoM2 with ice-shelf cavities and eddy-permitting grid resolution in the high-latitude Southern Ocean - This project includes global model simulations with the global multi-resolution Finite Element Sea Ice-Ocean Model (FESOM version 1.4) coupled to the Regulated Ecosystem Model (REcoM version 2). For this project, model simulations include a representation of ice-shelf cavities and were run from 1950-2100 on a model grid with eddy-permitting resolution on the Antarctic continental shelves. 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 and sensitivity experiments facilitating the separation of natural and anthropogenic components of the oceanic carbon cycle. The provided model simulations were initially run to assess the potential over the 21st century for the crossing of tipping points in Antarctic Bottom Water formation and the associated carbon sequestration in the Weddell Sea. Since then, these simulations have been used for a broader assessment of potential future trajectories of the coupled physical-biogeochemical system in the high-latitude Southern Ocean. Computing resources were provided by the North-German Supercomputing Alliance (HLRN) project hbk00079, and the work has 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. Summary: This dataset includes all variables of the model experiment “simA ssp585” conducted with the global ocean-sea ice-biogeochemistry model FESOM1.4-REcoM2 with ice-shelf cavities and eddy-permitting resolution on Antarctic shelves. For this experiment, both atmospheric CO2 concentrations and all other atmospheric forcing variables (e.g., air temperature, winds, humidity, precipitation) vary throughout the simulation. Output is provided from 2015-2100 (monthly and annual output frequency) and 2080-2100 (daily output frequency). The output is sorted by output frequency (monthly or daily) and model component (FESOM or REcoM). The data is sorted as follows: - annual_FESOM - annual_REcoM - monthly_FESOM - monthly_REcoM - daily_FESOM - daily_REcoM Filname convention: Variable_outputFreq_FESOM1.4-REcoM2_experimentName_experimentTime_year.nc Computing resources were provided by the North-German Supercomputing Alliance (HLRN) project hbk00079.

项目名称：包含冰架空腔与南极高纬度海域涡旋分辨网格分辨率的海洋-海冰-生物地球化学耦合模式FESOM1.4-REcoM2全球模拟。本项目采用全球多分辨率有限元海冰-海洋模式（Finite Element Sea Ice-Ocean Model，FESOM 1.4版）与调控生态系统模式（Regulated Ecosystem Model，REcoM 2版）耦合构建的模式系统开展模拟。本项目的模式模拟包含冰架空腔表征模块，模拟时段为1950年至2100年，其中南极大陆架海域采用涡旋分辨网格分辨率。纯海洋分量的模式模拟以AWI气候模式（AWI Climate Model）输出的3小时间隔大气数据作为海面强迫场。本项目包含4种共享社会经济路径（Shared Socioeconomic Pathways，SSPs）排放情景下的模式试验，以及用于分离海洋碳循环自然与人为组分的敏感性试验。本次提供的模式模拟最初用于评估21世纪南极底层水形成过程突破临界点的可能性，以及威德尔海相关的碳封存效应。此后，该套模拟数据被进一步用于南极高纬度海域耦合物理-生物地球化学系统未来潜在演变轨迹的多维度评估。计算资源由北德超级计算联盟（North-German Supercomputing Alliance，HLRN）的hbk00079项目提供，本研究获得欧盟地平线2020研究与创新计划资助，项目编号820989（项目名称COMFORT，网址：https://comfort.w.uib.no/）。COMFORT项目旨在评估海洋碳、氧与营养盐耦合循环中的临界点，以确定并实现海洋安全运行边界。
数据集概况：本数据集包含采用含冰架空腔、南极大陆架采用涡旋分辨网格分辨率的全球海洋-海冰-生物地球化学耦合模式FESOM1.4-REcoM2开展的"simA ssp585"模式试验的全部变量数据。该试验中，大气CO₂浓度与所有其他大气强迫变量（如气温、风场、湿度、降水）在模拟时段内均随时间变化。模拟输出时段分为两段：2015年至2100年（输出频率为月尺度与年尺度），以及2080年至2100年（输出频率为日尺度）。输出数据按输出频率（月尺度/日尺度）与模式分量（FESOM或REcoM）进行分类存储，数据分类结构如下：
- annual_FESOM
- annual_REcoM
- monthly_FESOM
- monthly_REcoM
- daily_FESOM
- daily_REcoM
文件名命名规则：变量名_输出频率_FESOM1.4-REcoM2_试验名称_试验时段_年份.nc。计算资源由北德超级计算联盟（HLRN）的hbk00079项目提供。