Cloud the bottom of the hierarchy. Clouds in the troposphere assume five physical forms based on structure and process of formation. These forms are commonly used for the purpose of satellite analysis. They are given below in approximate ascending order of instability or convective activity. "Non-convective" stratiform clouds appear in "stable" airmass conditions and, in general, have flat sheet-like structures that can form at any altitude in the troposphere. The stratiform group is divided by altitude range into the genera cirrostratus (high-level), altostratus (mid-level), stratus (low-level), and nimbostratus (multi-level). Fog is commonly considered a surface-based cloud layer. The fog may form
So Beautiful or So What So Beautiful or So What So Beautiful or So What is the twelfth solo studio album by American folk rock singer-songwriter Paul Simon. It was released on April 8, 2011, by Hear Music. The album found Simon reuniting with former collaborator and record producer Phil Ramone. Having experimented with rhythm-based textures for much of the previous two decades, the singer returned to composing songs in a more traditional manner using only his acoustic guitar. These songs were further augmented by experimental recording practices in the studio. The album was largely recorded in a small cottage at Simon's home in New