CMIP6 ScenarioMIP MPI-ESM1-2-LR ssp370 - RCM-forcing data

Project: RCM forcing data from MPI-ESM1-2 (ECHAM6/JSBACH/MPIOM/HAMOCC) CMIP6 experiments - This project provides variables from MPI-ESM1-2-HR CMIP6 experiments performed by DKRZ, MPI-M and DWD in the context of the BMBF funded CMIP6 DICAD project (FKZ 01LP1605A) and from MPI-ESM1-2-LR CMIP6 experiments performed by the Universität Hamburg and DKRZ, with the aim to benefit from the updated MPI-ESM model and the CMIP6 forcings in the context of the grand ensemble studies of the Universität Hamburg and the MPI-M. The experiments are described at https://www.wcrp-climate.org/wgcm-cmip/wgcm-cmip6 . Essential variables for regional climate modelling (RCM) are available. They are stored in native GRIB-format (e.g. spectral). For each experiment-member five datasets are provided. They are of frequency 6hrPt (= instantaneous six hourly) and fx (time invariant). ua and va have to be calculated from divergence and vorticity (e.g. with 'cdo dv2uv ...'). Spectral to gridpoint transformation can be done with 'cdo sp2gp ...'. The CMIP6 experiments have been performed with various model versions of MPI-ESM1-2: - LR: MPI-ESM1-2-LR - T63L47 (192 x 96 gridpoints; 47 vertical layers) for ECHAM6/JSBACH and GR15 (ca. 1.5 deg) of MPIOM/HAMOCC. - HR: MPI-ESM1-2-HR - T127L95 (384 x 192 gridpoints; 95 vertical layers) for ECHAM6/JSBACH and TP04 (tripolar grid, ca. 0.4 deg) of MPIOM/HAMOCC. CMIP6 ensemble members are named 'rNiNpNfN': rN is the realisation, iN is the initialisation method, pN stands for the parameterization or physics variant and fN stands for the forcing variant of the experiment. Different experiment realisations (rN) differ with respect to their restart files. The additional simulation output that is provided here as RCM forcing is (ONLY) available for the following simulations: - MPI-ESM1-2-HR: amip: r1i1p1f1 - r3i1p1f1 ssp126, ssp245, ssp370, ssp585: r1i1p1f1 - r10i1p1f1 - MPI-ESM1-2-LR: historical, ssp119, ssp126, ssp245, ssp370, ssp585: r11i1p1f1 - r30i1p1f1 Summary: RCM forcing data from the 20 realisations (r11i1p1f1-r30i1p1f1) of the CMIP6/ScenarioMIP experiment ssp370, conducted with the MPI-ESM1-2-LR on the Mistral supercomputer of the DKRZ. The experiment covers the years 2015 to 2100 and branches from realisations of the CMIP6/CMIP historical experiment. The file format is gzip-compressed GRIB (*.grb.gz). ScenarioMIP website: https://cmip.ucar.edu/scenario-mip ScenarioMIP paper: https://doi.org/10.5194/gmd-9-3461-2016 Experiment description ssp370: Gap: Baseline scenario with a medium to high radiative forcing by the end of century. Following approximately RCP7.0 global forcing pathway with SSP3 socioeconomic conditions. Radiative forcing reaches a level of 7.0 W/m2 in 2100. Concentration-driven.

项目：来自MPI-ESM1-2（ECHAM6/JSBACH/MPIOM/HAMOCC）耦合模式比较计划第六阶段（CMIP6）试验的区域气候模式强迫数据。本项目提供两类试验数据：一是由德国气候计算中心（DKRZ）、马克斯·普朗克气象研究所（MPI-M）与德国国家气象局（DWD）在德国联邦教育与研究部（BMBF）资助的CMIP6 DICAD项目（资助编号FKZ 01LP1605A）框架下开展的MPI-ESM1-2-HR CMIP6试验数据；二是由汉堡大学与DKRZ开展的MPI-ESM1-2-LR CMIP6试验数据，旨在依托更新后的MPI-ESM模式与CMIP6强迫场，服务于汉堡大学与MPI-M的大集合模拟研究。相关试验详情可参见：https://www.wcrp-climate.org/wgcm-cmip/wgcm-cmip6。本数据集包含适用于区域气候模式（Regional Climate Model，RCM）的核心模拟变量，以原生GRIB格式（如谱模式格式）存储。每个试验-成员组合对应5个数据集，数据时间分辨率分别为6hrPt（即逐6小时瞬时数据）与fx（即时间不变量数据）。纬向风（ua）与经向风（va）需由散度与涡度计算得到（例如通过命令`cdo dv2uv ...`实现）；谱点到格点的转换可通过`cdo sp2gp ...`完成。CMIP6试验采用多款MPI-ESM1-2模型版本开展：- LR：MPI-ESM1-2-LR，针对ECHAM6/JSBACH采用T63L47格点（192×96格点，47个垂直层），MPIOM/HAMOCC采用GR15格点（约1.5°分辨率）；- HR：MPI-ESM1-2-HR，针对ECHAM6/JSBACH采用T127L95格点（384×192格点，95个垂直层），MPIOM/HAMOCC采用TP04极地方向格点（约0.4°分辨率）。CMIP6集合成员命名格式为`rNiNpNfN`：其中`rN`代表实现次数，`iN`代表初始化方法，`pN`代表参数化方案或物理过程变体，`fN`代表试验强迫场变体。不同的试验实现次数（rN）的区别在于其重启文件不同。本数据集提供的额外模拟输出仅针对以下试验：- MPI-ESM1-2-HR： - amip试验：r1i1p1f1 ~ r3i1p1f1 - ssp126、ssp245、ssp370、ssp585试验：r1i1p1f1 ~ r10i1p1f1- MPI-ESM1-2-LR： - historical、ssp119、ssp126、ssp245、ssp370、ssp585试验：r11i1p1f1 ~ r30i1p1f1摘要：本数据集为在DKRZ的Mistral超级计算机上基于MPI-ESM1-2-LR开展的CMIP6/ScenarioMIP ssp370试验的20个实现样本（r11i1p1f1~r30i1p1f1）的区域气候模式强迫数据。该试验时段为2015年至2100年，其初始场源自CMIP6/CMIP历史试验的实现样本。数据格式为gzip压缩的GRIB文件（*.grb.gz）。ScenarioMIP相关网站：https://cmip.ucar.edu/scenario-mip；ScenarioMIP相关论文：https://doi.org/10.5194/gmd-9-3461-2016。ssp370试验说明：该情景为基线情景，到本世纪末辐射强迫处于中高水平，大致遵循RCP7.0全球强迫路径，并搭配SSP3社会经济情景。其辐射强迫在2100年达到7.0 W/m²，属于浓度驱动型情景。