京津冀地区闪电计数对太阳耀斑爆发的响应

Responses of lightning flashes number to solar flare over Beijing-Tianjin-Hebei

研究 1989～ 1994年间夏季前后 170个 2级以上太阳耀斑对高时空分辨率的LLP80 -0 2型闪电定位系统在此期间于京津冀地区所测的 2 2 732 6个闪电活动的中短期影响 .发现在所覆盖的 6 0 0km× 6 0 0km区域内 ,在河北中西部至渤海湾地区一带闪电次数存在几百公里尺度的负响应区 ,在河北中部的负响应区其差异显著性优于 5× 10 - 3.这一结果表明在此地区太阳耀斑爆发后雷暴活动减弱现象可能是稳定的客观事实 .它对太阳活动影响短期天气的传统机理提出了新的挑战 ,也为进一步的研究提供了新的事实根据 .

The short middle term responses of 227326 lightning activities measured by LLP80 02 to 170 solar flares of class 2 or greater over Beijing Tianjin Hebei in 1989～1994 summer around are studied.In the region of 600?km×600?km,there is a minus responses place over Bohai Bay to middle west of Hebei with the scale of several hundred kilometers(with the significance level better than 5×10 -3 at middle part of Hebei)means that the lightning activities after flare weakens there gives a new challenge to the mechanisms of the effects of the solar activities to the short middle term weather and provides a new basis of the facts for further study.