TY - BOOK AU - Tanveer Ahmad (16609) TI - Temporal and spatial variations in tec using gnss network of Pakistan during the period of 2015-16 U1 - 629.13251 PY - 2017/// CY - Islamabad PB - (unpublished) KW - Physics KW - Global Navigation satellite system KW - Geo- magnetic storm KW - Equatorial region KW - Refractive index KW - FBSH N1 - Submitted in fulfillment of the requirements for the degree of Master of Philosophy in Physics to the faculty of Basic Sciences and Humanities; Includes bibliographical references; Thesis supervisor: Dr. Zafar Iqbal; Thesis (M.Phil)--Riphah International University, 2018 ER -