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On the Specific Conductivity of Rain
[摘要] Specific Resistance (reciprocal of specific conductivity) of rain was measured at Kakioka Magnetic Observatory. The direct current method was adopted and the applied voltage was about 110 volts. Its mean resistivity was 1.7×105 Ω√cm3 at 15°C, ranging from maximum value of 6.5×10_??_ Ω√cm3 to minimum value of 2.1×104 Ω√cm3. It was generally of small value at the beginning of rainfall and gradually increased as it continued. The resistibity of rain varies as the nature of rain; the highest value was observed at tyhoons and the smaller values at cyclones and discontinuous lines and the lowest value at thunderstorms. The maximum was observed in October and minimum in April.
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[效力级别]  [学科分类] 大气科学
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