Characteristics of tweeks radio atmospherics observed in Indian low latitude region using AWESOME VLF receiver

Author

Maurya, Ajeet K. ; Selvakumaran, R. ; Singh, Rajesh ; Veenadhari, B.

Author_Institution

Indian Inst. of Geomagnetism, Navi Mumbai, India

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

In the present work tweeks recorded at Indian low latitude ground station Allahabad (Geomag. lat. 16.05° N) during April 2007 to March 2008 have been used to study the occurrence characteristics, distance & reflection height in the Earth Ionospheric waveguide. Results shows that summer seasons has highest tweek occurrence ~63% and lowest for winter season ~18%. The tweek recorded having maximum mode n=6, tweeks with n=2 are more dominant with occurrence ~70%. Tweeks with n>;3 are more common during early night & maximum tweeks occurs in late night. Average distance traveled by maximum tweeks is in range of ~4000-8000 km.

Keywords

Earth-ionosphere waveguide; radiowave propagation; AD 2007 04 to 2008 03; AWESOME VLF receiver; Allahabad; Earth Ionospheric waveguide; Indian low latitude region; distance; occurrence characteristics; reflection height; tweeks radio atmospherics; Atmospheric waves; Cutoff frequency; Electromagnetic waveguides; Geophysical measurement techniques; Lightning; Receivers; Reflection; ELF-VLF radio waves; Earth-ionosphere waveguide; Lightning discharges; tweeks;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6051176

Filename

6051176