Abstract:
Longitudinal variation of TEC have been calculated using GPS receivers data at
the four stations such as; Debark (37.894°E and 13.1505°N), Assab (42.6544°E and
13.0629°N), Bangalore (77.57°E and 13.0212°N) and Mangilao (144.8027° E and
13.4332° N), fo~:the perio~ of 2014.
Jn this study, we discussed the diurnal, Monthly and seasonal variations of TEC lon
gitudinally. The diurnal variation of mean TEC during quiet days shows, maximum
TEC is obtained at Mangilao in the month of March 09 and minimum mean TEC
value is at Debark in the month of July-l.S, Besides, mean TEC variability during
- storm days.revealed, strongest mean TEC is obtained at Mangilao in the month of
April 13 and minimum mean TEC is obtained at Assab in the month of July 14 .
J The monthly variation mean TEC is strongest at Debark and minimum at Assab.
-c,
In 'addition, during se~sonal variation maximum mean TEC is obtained at Debark
(Marchequinox) and minimum mean TEC is at Mangilao (Jun solstice).
Description:
A THESIS SUBMITTED TO
THE 'scHOOL OF GRADUATE STUDIES OF
©Copyright by Gerezgiher Hailay, 2016
..
IN PARTIAL FULFILLMENT OF THE
REQUIREMENTS FOR THE DEGREE OF
~
BARIR DAR UNIVERSITY
MASTER OF SCIENCE IN PHYSICS
