Study the effect of ozone layer depletion on aircraft design at atmospheric region of Pakistan

Abstract

Ozone is of considerable importance to mankind because of its role as a shield for the biosphere against the Ultraviolet (UV) radiation from the outer space, in particular from the sun. Due to a serious reduction of O3 content in the atmosphere, life-forms on the earth are exposed to a new hazard in the form of an increase of harmful solar UV radiation intensity at the sea level. Atmospheric scientists started taking serious notice of the development of ozone hole in early 1980s. One of the damages is embrittlement in the aircraft that is caused by exposure to UV radiation. Ultraviolet exposure also causes electrical changes in the form of resistively modified and optically affected changes both thermal characteristics and opacity. A particularly UV-sensitive element is the solar array. More specifically the solar cell cover glass and its attendant adhesive are subject to darkening. This results in reduced cell illumination and an enhanced operating temperature both being deleterious (harmful or lethal) to cell operation. In this communication our goal is to enumerate the effects of ozone layer depletion that results in the penetration UV radiation so that the damage of the material of aircraft can be estimated. This estimation may be useful for the characterization of air craft operation from the earth and loss of the earth protection shield. This kind of study also helpful for aeronautical engineers to select proper aircraft materials.