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.
Panorama of a strong shelf cloud, a type of arcus cloud. Underside of a weak shelf cloud. An arcus cloud is a low, horizontal cloud formation, usually appearing as an accessory cloud to a cumulonimbus. Roll clouds and shelf clouds are the two main types of arcus.