CESM2 Perfect Model Prediction Ensembles, 2030
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This dataset includes ensemble prediction experiments using the CESM2 model. These are "perfect model prediction experiments" in which the simulations are initialized with nearly identical conditions from CESM2 simulations in the year 2030 and then integrated forward for two years. Ensemble prediction sets are initialized on January 1, March 1, May 1, July 1, September 1, and November 1. Five different initial conditions, taken from five different CESM2 simulations, are used for each initialization timing and 15 members are simulated for each of the five initial states. These 15 members differ with a micro-perturbation to the initial atmospheric temperature. Thus, for each initialization timing set (i.e. January 1, 2030) there are 75 total ensemble members (15 members for 5 initial states). These experiments can be used to assess the inherent initial-value predictability characteristics of the earth system as simulated by CESM2.
本数据集包含基于CESM2(Community Earth System Model 2)模式开展的集合预报试验。此类试验属于“完美模式预报试验”:模拟初始场取自2030年CESM2模拟结果的近乎一致的大气条件,随后向前积分两年时长。集合预报的初始时刻设定为2030年的1月1日、3月1日、5月1日、7月1日、9月1日及11月1日。针对每个初始时刻,均采用5组取自不同CESM2模拟结果的初始场,且对这5组初始场分别开展15个集合成员的模拟。这15个集合成员的差异来源于初始大气温度的微小扰动。因此,针对每个初始时刻集合(如2030年1月1日),总共有75个集合成员(5组初始场对应15个成员)。此类试验可用于评估CESM2模式所模拟的地球系统固有的初值可预报性特征。




