M.Ayub Khan YousufZai, M.Rashid Kamal Ansari, and Jawaid Quamar July 2008 The Arabian Journal for Science and Engineering, Volume 33, Number 2A 333 COMPUTATION AND EMPIRICAL MODELING OF UV FLUX REACHING ARABIAN SEA DUE TO O 3 HOLE M. Ayub Khan YousufZai* Department of Applied Physics University of Karachi, Karachi - 75270, Pakistan M. Rashid Kamal Ansari, and Jawaid Quamar Institute of Space and Planetary Astrophysics, University of Karachi, Karachi - 75270, Pakistan اﻟﺨﻼﺻـﺔ: ϴΑ اﻷوروﻀﺎءϔϟ اΌϴ هϞΜϣ ϴϤϟόϟ اϴϤϠόϟ اﺎتϤϨϤϟ اϲϟΗ ، ﺎرѧΛϵΑ λΧ ϳϨϋ ﺤﺪةΘϤϟ اϢϣ اﻷﺎتϤϨϣ و ﺔ،ѧΌϴΒϟ اѧϠϋ ﺎنδϧ اﻹﻬﺎϔϠΨϳ ϲΘϟ اϴΒϠδϟ اѧλΨΑ و اﻷوزونѧϘΒσ ﺎرδѧϧ ا) OLD ( ϲΑѧϨΠϟ اΐѧτϘϟ اﻮقѧϓ ﺬيѧϟ ا اﻷѧϳﺎذϔϧ ϲϓ ﺎدةϳ زϦϣ ϪϨϋ ΞΘϨϳ Ϥϟ ϗﺤﺪϣ ﺮاτΧ Ϟθϳ ϴΠδѧϔϨΒϟ اﻮقѧϓ όѧη . Ϧѧϣ ѧϳόϟ اﺎمѧϴϗ Ϧѧϣ Ϣﺮﻏѧϟ اѧϠϋ و إﻻﻈﺎهﺮةϟ اϩ هﺬγﺪراΑ ϴϤϠόϟ اﺎتϋϤΠϤϟ اﻬﺎϧ أϢϟ ﺮقτΘΗ ϞμѧΗ ϲѧΘϟ اϴΠδѧϔϨΒϟ اﻮقѧϓ όѧη اﻷϖϓΗ ΟϤϧ ϟ إ ϲϧ اﻷوزوΐϘΜϟ اϦϋ ϤΟϨϟ واﺮبόϟ اﺤﺮΑ τγ ϟ إ. ﻮفγ وﻮقϓ όη اﻷϖϓ Η ΟϤϧ Ξ΋Θϧ ΚΒϟ ا هﺬاϲϓ ﻮردϧ ϴΠδϔϨΒϟ ا، Ϧϣϟ اϠδϠδΘϣ ϞϴϠΗ ﺪامΨΘγΑ ϖϓΘϟ اﻬﺬاϟ ϲϠΒϘΘδϤϟ اϳϘΘϟ واϟﺤﺎوϣ ϲϓ ѧϘΒσ ﺎرδѧϧ اѧόϴΒσ Ϣѧϔϟ اﻷوزون. * To whom correspondence should be addressed E-mail: ayubzai@yahoo.com Paper Received 26 August 2006; Revised 30 August 2007; Accepted 28 November 2007