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 solo album in the UK. In April 2016, the album reached sales of 319,000 copies in the US. "So Beautiful or So What" was met with widespread critical acclaim. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream publications, the album received an average score of 85, based on 27 reviews. Many critics compared its diverse influences to the music of Simon's 1986 album "Graceland". Reviewing the album for AllMusic, senior editor Stephen Thomas Erlewine said "So Beautiful or So What" sounded not only focused but "vivid, vibrant, and current in a way none of