Ask A Scientist© Weather Archive

> > >  name       aniketh
> > >  status     student
> > >  age        13
>
> > >  Question - I am a class 9 student studying the UV light
>concentrations
> > > in different parts of world.
> > >Do you have any data on UV light concentrations,as measured by a
> > >photometer, in different countries.
> >
>
>Like so many inquiries, the answer depends upon how sophisticated an answer
>one is looking for. For example, the website
>http://www.geog.ouc.bc.ca/physgeog/contents/6i.html discusses the effect of
>[insolation], the angle of incidence, the length of the day, and the annual
>changes in solar radiation [of all wavelengths] striking the earth. In
>addition, the altitude of the site, the number of sunny/cloudy days per
>year, the wavelenth of U.V. radiation. So the response can be pretty
>involved.
>
>With that caveat, there are two other websites [with many links] that
>address this question directly:
>
>http://www.hao.ucar.edu/public/asr/asr95/ultraviolet.html
>http://sohowww.nascom.nasa.gov/descriptions/experiments/sumer/
>
>The acronym SUMER stands for Solar Ultraviolet Measurement Emitted
>Radiation. I think that Aniketh can browse these sources and with her
>teacher decide just how sophisticated an answer is needed.
>
>Vince Calder


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