金星弓形波的中尺度模拟
Mesoscale modeling of Venus' bow-shape waves
摘要：
Akatsuki仪器LIR测量了金星云层顶部前所未有的波浪特征。在赤道主山脉上观测到了持续数个地球日的数千公里的静止弓形波。在这里，我们第一次使用中尺度模型的金星的大气层与高分辨率的地形和充分耦合的交互式辐射转移计算。山波解决的模式形成大规模的弓形波的振幅约为1.5 K和大小高达几十年的纬度类似的Akatsuki航天器测量。波浪的最大振幅出现在下午，这是由于近水面稳定性增加。波垂直传播时遇到两个静态稳定性低的区域，即大约18和30 km之间的混合层和50和55 km之间的对流层。波能的一部分可以通过这些区域通过波隧穿。这两层起着滤波器的作用，特别是大气深层。与这些层的相遇产生水平传播的被捕获的背风波。极地云顶没有定常波，这是因为极周瞬变波很强，而深厚的大气混合层过滤了大部分的山波
英文摘要：
The Akatsuki instrument LIR measured an unprecedented wave feature at the top of Venusian cloud layer. Stationary bow-shape waves of thousands of kilometers large lasting several Earth days have been observed over the main equatorial mountains. Here we use for the first time a mesoscale model of the Venus's atmosphere with high-resolution topography and fully coupled interactive radiative transfer computations. Mountain waves resolved by the model form large-scale bow shape waves with an amplitude of about 1.5 K and a size up to several decades of latitude similar to the ones measured by the Akatsuki spacecraft. The maximum amplitude of the waves appears in the afternoon due to an increase of the near-surface stability. Propagating vertically the waves encounter two regions of low static stability, the mixed layer between approximately 18 and 30 km and the convective layer between 50 and 55 km. Some part of the wave energy can pass through these regions via wave tunneling. These two layers act as wave filter, especially the deep atmosphere layer. The encounter with these layers generates trapped lee waves propagating horizontally. No stationary waves is resolved at cloud top over the polar regions because of strong circumpolar transient waves, and a thicker deep atmosphere mixed layer that filters most the mountain waves
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
