Ultraviolet radiant energy from the sun observed at 11,190 feet

Abstract

This p a.p er gives t he res ul ts of so me m eas urem ents o n th e ultra vi olet a nd shor t wa vele ngt? visible sp ectra l energy distributio n of direct solar r a di at io n, ma de in Sep tember 1951 , a t Cllmax, . Col?, a ltitude 11 ,190 feet . D ata a re g iven for wa v elengths exte nd ing from 535 to 290.5 mIiiLmlCro ns for a number of a ir masses fr om 0 to 3.0) . A det erminat ion of atm ospheri c t ra ns mitt an ce as a fun cti o n of wa vele ngt h res ul ts in calcula t ed a mo un ts of ozo ne approximat ing 0 .21 ce ntimeter (ni p) for severa l d ays durin g September. Thi s value is in good agree m ent wit h previ o llS determinat io ns by other meth od s, fo r the season of th e year an d t he geogr a phi cal latit ud e of Cltmax.