THOR is the first open-source general circulation model (GCM) developed from scratch to study the atmospheres and climates of exoplanets, free from Earth- or solar-system-centric tunings. It solves the general nonhydrostatic Euler equations (instead of the primitive equations) on a sphere using the icosahedral grid. In the current study, we report major upgrades to THOR , building on the work of Mendonça et al. First, while the horizontally explicit and vertically implicit integration scheme is the same as that described in Mendonça et al., we provide a clearer description of the scheme and improve its implementation in the code. The differences in implementation between the hydrostatic shallow, quasi-hydrostatic deep, and nonhydrostatic deep treatments are fully detailed. Second, standard physics modules are added: two-stream, double-gray radiative transfer and dry convective adjustment. Third, THOR is tested on additional benchmarks: tidally locked E...

中文翻译：

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THOR 2.0：开源通用流通模型的重大改进

THOR是第一个从头开始开发的开源通用循环模型（GCM），用于研究系外行星的大气和气候，而无需以地球或太阳系为中心的调整。它使用二十面体网格求解球面上的一般非静液压Euler方程（而不是原始方程）。在当前的研究中，我们报告了在Mendonça等人的工作基础上对THOR的重大升级。首先，尽管水平显式和垂直隐式集成方案与Mendonça等人中描述的方案相同，但我们提供了对该方案的更清晰描述并改进了其在代码中的实现。充分详细介绍了静水浅处理，准静水深处理和非静水深处理在实现上的差异。其次，添加了标准物理模块：双流，双灰色辐射转移和干对流调节。第三，THOR在其他基准上进行了测试：潮汐锁定的E ...