Title :
The variation of critical frequency of E layer over Chumphon, Thailand
Author :
Wongcharoen, Poramintra ; Kenpankho, Prasert ; Sepsirisuk, Kasemsuk ; Supnithi, Pornchai ; Noppanakeepong, Suthichai ; Lerkvaranyu, Somkiat ; Tsugawa, Takuya ; Nagatsuma, Tadao
Author_Institution :
Fac. of Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
In this research paper presents the observed critical frequency of E layer (foE) over Chumphon, Thailand which is located at nearly the magnetic equator (lat. 10.72° long. 99.37° dip. 3°) during September 2004 to August 2005. The foE is one of essential parameters in the International Reference Ionsphere (IRI) model. We investigate the variation of the observed foE by comparing to the Sun spot number, ionospheric index, and 10.7 cm. flux. Due to essentially of accurate IRI model can be used to applied in communication such as it may be implied tendency of phenomena in E layer effect on high frequency communication over Chumphon, Thailand.
Keywords :
E-region; ionospheric electromagnetic wave propagation; AD 2004 09 to 2005 08; Chumphon; E Layer; IRI model; International Reference Ionsphere model; Sun spot number; Thailand; critical frequency variation; high frequency communication; ionospheric index; magnetic equator; Conferences; Frequency modulation; Indexes; Ionosphere; Magnetic fields; Magnetic flux; Sun; 10.7 cm. flux; E layer; IRI model; Sun spot number; critical frequency of E layer; ionospheric index; magnetic equator;
Conference_Titel :
Space Science and Communication (IconSpace), 2013 IEEE International Conference on
Conference_Location :
Melaka
DOI :
10.1109/IconSpace.2013.6599464
