论文标题
新的对流参数化适用于木星：在$ 24^\ Circ $ n地区附近的水丰度的影响
A new convective parameterization applied to Jupiter: implications for water abundance near the $24^\circ$ N region
论文作者
论文摘要
木星的大气层具有各种云层，这些云由化学和大气动态的相互作用形成，从大红色点的深红色到区域中存在的高海拔白色氨云（木星大气中的亮带）。在这些高层云下，发生水冷凝，偶尔会导致高耸的对流风暴的形成，这是由于大量潜热的释放而驱动。这些风暴导致云层的广泛破坏和在它们形成的纬度上的大气的动态结构，这使得对这些事件的研究至关重要，这在理解深度的动力学以及水在Jovian大气中的作用至关重要。在这项工作中，我们使用显式的行星杂种 - 凝集坐标（EPIC）通用循环模型（GCM）研究Jovian大气，重点是水冷凝的潮湿对流风暴形成。我们介绍了添加亚网格比例湿对流模块以模拟对流水云形成。我们专注于$ 24^\ circ $ n Latitude，即高速射击的位置，每4 - 5年一次观察到对流的上升。我们发现，对流的潜力以及大气的垂直质量和能量通量与水的量密切相关，并且我们确定了射流区域中水的上限为太阳能[O/H]的两倍。
Jupiter's atmosphere features a variety of clouds that are formed from the interplay of chemistry and atmospheric dynamics, from the deep red color of the Great Red Spot to the high altitude white ammonia clouds present in the zones (bright bands in Jupiter's atmosphere). Beneath these upper level clouds, water condensation occurs, and sporadically leads to the formation of towering convective storms, driven by the release of large amounts of latent heat. These storms result in a widespread disruption of the cloud and dynamical structure of the atmosphere at the latitude where they form, making the study of these events paramount in understanding the dynamics at depth, and the role of water in the jovian atmosphere. In this work, we use the Explicit Planetary hybrid-Isentropic Coordinate (EPIC) General Circulation Model (GCM) to study the jovian atmosphere, with a focus on moist convective storm formation from water condensation. We present the addition of a sub-grid scale moist convective module to model convective water cloud formation. We focus on the $24^\circ$ N latitude, the location of a high speed jetstream, where convective upwellings have been observed every 4-5 years. We find that the potential of convection, and vertical mass and energy flux of the atmosphere is strongly correlated with the amount of water, and we determine an upper limit of the amount of water in the the region surrounding the jet as twice the solar [O/H] ratio.
