00854nam a22001697a 4500040003700000082002000037100002700057245010300084260003700187300004200224500014800266500004100414500004000455502005900495546001300554650011700567  cRiphah International University   a629.13251bTAN   aTanveer Ahmad (16609)   aTemporal and spatial variations in tec using gnss network of Pakistan during the period of 2015-16  aIslamabad b(unpublished) c2017  axiii, 48 p. b: ill. c; 30 cm. e+CD  aSubmitted in fulfillment of the requirements for the degree of Master of Philosophy in Physics to the faculty of Basic Sciences and Humanities.  aIncludes bibliographical references   aThesis supervisor: Dr. Zafar Iqbal   aThesis (M.Phil)--Riphah International University, 2018  aEnglish   aPhysicsvGlobal Navigation satellite system vGeo- magnetic storm vEquatorial region vRefractive index vFBSH