Chinese Scientists Forecast on Ionosphere DisturbanceChinese scientists have successfully forecast ionosphere disturbance on June 9, issued a notice 2 days in advance, thus reducing China's loss in short-wave communication, satellite communication, long-wave navigation, space flights and other fields.Since the sun entered solar active peak by yearend of 1999, China Institute of Radio Propagation has followed closely the track of solar activity. Sunburst erupted on June 2, which caused medium-intensity ionosphere disturbance, resulting in one and half an hour or more experiment circuit interruption from Qingdao City to Xinxiang, Henan Province. From June 2 on, the Institute entered into emergence monitoring state. Ten electric wave observation stations of the Institute began to increase monitoring density, 15 minutes for every monitoring shift. Three large sunbursts erupted on June 6.According to sunburst intensity and other factors, Chinese scientists gave informs to related departments that necessary measures be adopted two days in advance to guarantee short-wave communication, satellite communication and short-wave broadcasting for pending large-scale ionosphere disturbance 2 days after. It is reported that China's "No.3 Dongfanghong" communication satellite and "No.1 Resource" satellite have all been orbiting well high up in the sky with little ill effect found from ionosphere disturbance. |
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