| 1 | Sunlit boundary ionospheric response to the great flare on Oct.28,2003显示文摘The ionospheric TEC in the sunlit boundary region during outburst of the great flare on Oct. 28, 2003 is analyzed using GPS data from IGS network. It is found that the ionosphere over the region of solar zenith angle <105°was affected by this flare radiation, and the TEC enhancement decreased with the solar zenith angle. The results show that the value of TEC enhancement over the region of zenith angle ≈80° was about I0 TECU, at the terminate region (zenith angle≈90°) the TEC enhancement was about 7 TECU, and the TEC enhancement over the region of zenith angle≈110° was 1-2 TECU. | ZHANGDonghe XIAOZuo LIUJing LIUSiqing GONGJiancun | 2004 | Chinese Science Bulletin2004，49，15： | 1 |
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