Abstract
Preliminary analysis of the data of ultraviolet (UV) radiation and ground‐level ozone concentration measurements from Rugšteliškes Monitoring Station over the years 2002–2003 is presented. Observations showed that an average UV radiation value in January and July of 2002 differed about 10 times. Maximum intensity of UVA radiation was observed in July (about 2,4 W/m2), and minimal one ‐ in December (0,1 W/m2), the highest UVB radiation intensity was in May (0,09 W/m2), while a minimal UVB radiation value as well as that of UVA was registered in December (0,07 W/m2). Relationship between the highest ozone concentration and UVB radiation values during the summer of the investigation period was found to be linear.
Highlights
There are many different types of energy that come from the Sun
It is confirmed that the course of UV and global radiation is similar; it is often possible to calculate the UV radiation intensity from global radiation data
The UV radiation value made up about one hundredth part of global radiation
Summary
There are many different types of energy that come from the Sun. All of the types of energy are part of the electromagnetic spectrum. The stratospheric ozone layer absorbs some, but not all, of these types of UV radiation: UVA is not absorbed, UVB is most absorbed, but some part of it reaches the Earths surface, and UVC is completely absorbed by the ozone layer and oxygen. It is natural origin function, protecting us from harmful influence of UV rays. Decrease of the ozone layer allows penetration of more UV radiation through the atmosphere, and exposure at the Earths surface increases. The purpose of the work is to perform a preliminary analysis of UV radiation variations in Lithuania and to find relationship between UV radiation and ozone concentration
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