论文标题
Earth $'$ S Polar Night Bounder Lounder层，作为对同步旋转的陆生外行的黑暗面倒置的类似物
Earth$'$s polar night boundary layer as an analogue for dark side inversions on synchronously rotating terrestrial exoplanets
论文作者
论文摘要
确定同步旋转行星潜在宜居性的关键因素是黑暗侧面和自由大气之间大气边界层反转的强度。在这里，我们分析了从南极和警报加拿大获得的极地夜间测量结果获得的数据，这是地球上最接近的类似物，与没有海上影响的同步旋转系外行星的黑暗侧面的条件。在地球上，这种反演的强度很少超过30 k，这是由于现象引起的湍流混合的作用，例如所谓的中尺度斜坡风，其水平尺度为10s至100 km，这表明对几乎相近的近距离黑暗侧面倒置，这表明了相似的约束。我们讨论了反转强度对地形和全球尺度循环等因素的敏感性，并将它们与planet proxima centauri b进行了比较。我们的结果表明，使用中尺度和涡流分辨率模型，在系外行星研究中与地球数据进行比较的重要性，并强调了对系外行星大气崩溃问题的必要性。
A key factor in determining the potential habitability of synchronously rotating planets is the strength of the atmospheric boundary layer inversion between the dark side surface and the free atmosphere. Here we analyse data obtained from polar night measurements at the South Pole and Alert Canada, which are the closest analogues on Earth to conditions on the dark sides of synchronously rotating exoplanets without and with a maritime influence, respectively. On Earth, such inversions rarely exceed 30 K in strength, because of the effect of turbulent mixing induced by phenomena such as so-called mesoscale slope winds, which have horizontal scales of 10s to 100s of km, suggesting a similar constraint to near-surface dark side inversions. We discuss the sensitivity of inversion strength to factors such as orography and the global-scale circulation, and compare them to a simulation of the planet Proxima Centauri b. Our results demonstrate the importance of comparisons with Earth data in exoplanet research, and highlight the need for further studies of the exoplanet atmospheric collapse problem using mesoscale and eddy-resolving models.
