Stratospheric Aerosol Injection (SAI) model output from NASA GISS ModelE2.2 and the System for Atmospheric Modeling (SAM)

This dataset includes output from stratospheric aerosol injection (SAI) experiments for an upcoming study on how SAI affects the tropical troposphere independently of surface cooling. All simulations use prescribed (non-interactive) sea surface temperatures. Experiments were conducted using the GISS ModelE2.2 Earth system model, and the System for Atmospheric Modeling (SAM) in three configurations: (1) a large mock-Walker domain at 3 km resolution, (2) a small domain at 3 km resolution, and (3) a small domain at 1 km resolution. For each configuration, we include a control (no-SAI) simulation and a set of SAI experiments: a base case with a thick SAI layer, a version where stratospheric aerosols interact only with longwave radiation, as in the base case but with lower aerosol loading, and as in the base case but with smaller aerosol particles. See the study or its preprint for full descriptions of these simulations.本数据集包含平流层气溶胶注入（stratospheric aerosol injection, SAI）相关实验的输出结果，对应一项即将刊发的研究，该研究旨在探讨平流层气溶胶注入如何在不受地表冷却干扰的前提下，对热带对流层产生独立影响。所有模拟均采用指定海表温度（prescribed sea surface temperatures，非交互式）设置。 实验使用GISS ModelE2.2地球系统模式与大气建模系统（System for Atmospheric Modeling, SAM）开展，共包含三种配置：(1) 分辨率为3公里的大型类沃克域；(2) 分辨率为3公里的小型域；(3) 分辨率为1公里的小型域。针对每种配置，均包含一组对照（无SAI）模拟与多组SAI实验：包括设置厚平流层气溶胶层的基准情景、仅与长波辐射发生相互作用的平流层气溶胶情景、与基准情景参数一致但气溶胶载荷更低的情景，以及与基准情景参数一致但气溶胶粒子尺寸更小的情景。上述模拟的完整细节可参阅该研究及其预印本。