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40.8 MHz coherent scatter ionospheric radar observations of E- and F-region field aligned irregularities over Korea
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  • 40.8 MHz coherent scatter ionospheric radar observations of E- and F-region field aligned irregularities over Korea
  • 40.8 MHz coherent scatter ionospheric radar observations of E- and F-region field aligned irregularities over Korea
저자명
Yang. Tae-Yong,Kwak. Young-Sil,Lee. Jae-Jin,Choi. Seong-Hwan,Hwang. Jung-A,Park. Young-Deuk
간행물명
천문학회보
권/호정보
2011년|36권 2호|pp.81-81 (1 pages)
발행정보
한국천문학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

The new coherent scatter ionospheric radar has been operating at Gyerong city ($36.18^{circ}N$, $127.14^{circ}E$, dip lat $26.7^{circ}N$), South Korea. This VHF radar is consisted of 24 Yagi antennas having 5 elements and observes the E- and F-region field-aligned irregularities (FAIs) in a single frequency of 40.8 MHz with a peak power of 24 kW. We present the first results of the E- and F-region FAIs over Korea by using the new VHF coherent scatter ionospheric radar. The morphological and echo characteristics are studied in terms of their echo strength, Doppler velocity and also by spectral width values. From the continuous observations from December 2009, we found ionospheric E- and F-region FAIs appeared frequently. The most interesting and striking observations for E region are occurrence of daytime E-region irregularities and strong Quasi-Periodic (QP) echoes at nighttime. And for F region, strong post-sunset and pre-sunrise FAIs appeared frequently. The VHF radar observations over Korea are discussed in the light of current understanding of mid-latitude E- and F-region FAIs.