Answer: Ablation is a procedure that's been available now for 10 or 15 years or more, that is to eliminate heart rhythm disorders mostly now in what we call the upper chamber, or the atrium.nswer: Ablation is a procedure that's been available now for 10 or 15 years or more, that is to eliminate heart rhythm disorders mostly now in what we call the upper chamber, or the atrium.
Cloud Types common cloud classifications. Clouds are classified into a system that uses Latin words to describe the appearance of clouds as seen by an observer on the ground. The table below summarizes the four principal components of this classification system (Ahrens, 1994). Further classification identifies clouds by height of cloud base. For example, cloud names containing the prefix cirr-, as in cirrus clouds, are located at high levels while cloud names with the prefix alto-, as in altostratus, are found at middle levels. This module introduces several cloud groups.
According to the World Meteorological Organization's International Cloud Atlas, over 100 types of clouds exist! 1  But although there are so many variations, each one can be divided into one of ten basic types depending on its general shape and height in the sky. Divided by their height in the sky the ten types of clouds are: 1  low level clouds (cumulus, stratus, stratocumulus) that lie below 6,500 feet; 2  middle clouds (altocumulus, nimbostratus, altostratus) that form between 6,500 and 20,000 feet; 3  high level clouds (cirrus, cirrocumulus, cirrostratus) that form above 20,000 feet;