Climate Simulation with CLM, Scenario A1B run no.1, North Atlantic region

Project: Numerical reconstructions and extreme value statistics of the Northeast Atlantic storm climate and comparison with observations - Homepage of project see http://sfb512.zmaw.de Subproject_F4: Langzeitsimulationen und Extremwertstatistiken des regionalen Klimas des Nordatlantiks im Vergleich zu Beobachtungen Leader: Ralf Weisse see http://sfb512.zmaw.de/index.php?id=tp_f400 Summary: The experiment CLM_A1B_ZS contains Northern European regional climate simulations of the years 2070-2099 on a rotated grid (CLM non hydrostatic, 0.44 deg. hor. resolution, see http://www.clm-community.eu ). It is forced by the first (_1_) run of the global IPCC SRES A1B (EH5-T63L31_OM-GR1.5L40_A1B_1_6H), which describes a possible future world of very rapid economic growth, global population peaking in mid-century and rapid introduction of new and more efficient technologies with a balance across all energy sources. The model region starts at -19.36/-40.48 (lat/lon in rotated coordinates; centre of lower left corner of the domain) with rotated North Pole at 21.3/-175.0 (lat/lon). The number of grid points is 80/146 (lat/lon). The sponge zone (numerically unreliable boundary grid points) consists of 8 grid boxes at each border. EH5-T63L31_OM-GR1.5L40_A1B_1_6H were nudged during the simulations (spectral nudging,von Storch, H., A spectral nudging technique for dynamical downscaling purposes. Mon. Wea. Rev, 2000 ) The regional model variables include two-dimensional near surface fields and atmospheric fields on 6 pressure levels (200, 500, 700, 850, 925 and 1000 hPa) for zonal and meridional wind, temperature and pressure. The time interval of the output fields is 3 hours. Please contact sga"at"dkrz.de for data request details. The output format is netCDF. Experiment with CLM 2.4.6 on HPC Cluster ( blizzard ).

项目名称：东北大西洋风暴气候的数值重建与极值统计及与观测结果的对比——项目主页详见 http://sfb512.zmaw.de。子项目F4：北大西洋区域气候的长期模拟与极值统计及与观测结果的对比，负责人：拉尔夫·魏斯（Ralf Weisse），子项目页面详见 http://sfb512.zmaw.de/index.php?id=tp_f400。摘要：实验CLM_A1B_ZS包含2070-2099年北欧区域气候模拟，采用旋转网格（非静力CLM模式（CLM），水平分辨率0.44度，详见 http://www.clm-community.eu）。该实验由IPCC SRES A1B全球情景的首轮（_1_）模拟驱动（EH5-T63L31_OM-GR1.5L40_A1B_1_6H），该情景描述了一个经济高速增长、全球人口于本世纪中期达峰、各类能源均衡发展并快速推广新型高效技术的潜在未来世界。模式区域在旋转坐标系下的左下角中心点坐标为-19.36/-40.48（纬度/经度），旋转北极点坐标为21.3/-175.0（纬度/经度）。网格点数为80×146（纬度×经度）。每个边界各设8个网格格点构成海绵区（数值可靠性存疑的边界格点）。模拟过程中对EH5-T63L31_OM-GR1.5L40_A1B_1_6H采用了谱松弛（spectral nudging）技术（von Storch, H.，《用于动力降尺度的谱松弛技术》，《气象评论月刊》，2000年）。区域模式变量包含二维近地面场，以及6个气压层（200、500、700、850、925和1000 hPa）上的纬向风、经向风、温度和气压大气场。输出场的时间间隔为3小时。数据获取详情请联系sga"at"dkrz.de。输出格式为netCDF。本实验采用CLM 2.4.6版本，运行于暴雪（blizzard）高性能计算集群。