FUNDAMENTAL RESEARCH ON THE DEVELOPMENT OF ELECTRO-METEOROGICAL CONTROL METHOD BY SATELLITE IMAGE PROCESSING

1.本文比较了1990 ~ 1994年与台风有关的大气压力分布。登陆或接近日本的台风从北纬20°n向北上升后，在东经120 ~ 135°和北纬20 ~ 30°向北折返。(2)利用气压分布和红外光谱带图像讨论了1995年7月的强降雨。今后，随着地球同步气象卫星图像处理技术的发展，将建立包括雷电和台风在内的电力控制方法。雷电参数的研究结果(1)1994年和1995年冬季获得了雷电电流波形。特别是在1994年，便携式雷电电流测量数字系统可以同时记录避雷器端子之间的雷电电流和电压波形。在1995年，使用先进的闪电测量数字系统，可捕捉到48.5毫秒的闪电电流。(2)开发了一种新的闪电测量系统，可以方便地获取闪电频谱。实际上，这个系统可以拍摄冬天的闪电。(3)冬季雷电放电主行程中所识别的超快电流过渡是由并联电阻的剩余电感引起的。(4)对分布式雷电电流波形进行了讨论，并与多个实例进行了比较。

1.Geostationary Meteorological Satellite Image Processing Systems(1) The distribution of atmospheric pressure connected with the typhoon has been compared from 1990 to 1994. The typhoons landing in or approaching to Japan recurve at 120-135 degrees of east longitude and 20-30 degrees of north latitude after going up north from the latitude 20 N.(2) The heavy rainfall in July 1995 has been discussed with the barometric distribution and the infrared spectra band image. Hereafter, the advancement of geostationary meteorological satellite image processing will be desired to establish the electricpower control method included the lightning and typhoons.2.Research Results on the Lightning Parameters(1) The lightning current waveforms have been obtained in 1994 and 1995 winter. Especially, in 1994, both of the lightning current and voltage waveforms between the arrster terminals could be recorded with the portable digital systems for lightning current measurement. In 1995, the lightning current could be caught till 48.5 ms with using an advanced digital system for lightning measurement.(2) A new lightning survey system has been developed to obtain the lightning spectrum easily. Actually this system could take a photograph the lightning in winter.(3) The extra-fast current transition recognized during the main stroke of lightning discharge in winter would result from the residual inductance of the shunt resistance.(4) The distributed lightning current waveforms have been discussed with comparing with the many cases.