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Dive into the research topics where Haruji Ishikawa is active.

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Featured researches published by Haruji Ishikawa.


Journal of Atmospheric and Solar-Terrestrial Physics | 1970

On the possible role of ozone affecting the atmospheric electricity in the stratosphere

Yasuhiro Morita; Haruji Ishikawa

Abstract Numerical calculations of ion densities have been presented to show the possible influence of ozone in controlling the electrical state of the atmosphere in the stratosphere.


Journal of Geophysical Research | 1971

The vertical profiles of the small ion density and the electric conductivity in the atmosphere in 19 kilometers

Yasuhiro Morita; Haruji Ishikawa; Masahiro Kanada


Journal of The Meteorological Society of Japan | 1973

The Land-to-Ocean Transitional Behavior of the Atmospheric Electric Parameters and Their Relation to Atmospheric Pollution

Yasuhiro Morita; Haruji Ishikawa; Jiro Nagasaka; Masahiro Kanada


Journal of The Meteorological Society of Japan | 1977

On the Two Types of Thunderstorms Deduced from Cloud-to-Ground Discharges Observed in Sweden and Japan

Tosio Takeuti; Minoru Nakano; Haruji Ishikawa; Sven Israelsson


Journal of geomagnetism and geoelectricity | 1976

Simultaneous Measurements of Electric Conductivity and Aerosol in the Lower Stratosphere

Yasuhiro Morita; Haruji Ishikawa


Proceedings of the Research Institute of Atmospherics, Nagoya University | 1968

PRELIMINARY EXPERIMENT OF ATMOSPHERIC ION MEASUREMENT IN THE TRANSITIONAL REGION OF THE ATMOSPHERE

Haruji Ishikawa; Tosio Takeuti; Akira Iwata; Yasuhiro Morita


Journal of geomagnetism and geoelectricity | 1966

Preliminary Balloon Measurement of Negative Small Ion Density

Tosio Takeuti; Haruji Ishikawa; Akira Iwata


Proceedings of the Research Institute of Atmospherics, Nagoya University | 1971

SOME EXPERIMENTAL RESULTS ELABORATING THE EQUILIBRIUM CONDITIONS OF SMALL IONS IN THE ATMOSPHERE OVER THE PACIFIC OCEAN

Yasuhiro Morita; Haruji Ishikawa; Noriji Toriyama


Journal of geomagnetism and geoelectricity | 1970

Measurements of Small Ion Density in the Stratosphere by Level-Flight Balloon

Yasuhiro Morita; Haruji Ishikawa


Journal of geomagnetism and geoelectricity | 1974

Lower Ionospheric Sounding by the Use of Loran-C Signals

Akira Iwata; Haruji Ishikawa

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