Fifty Years of HF Doppler Observations | Zendy

Toru Ogawa | Zendy; Takumi Ichinose | Zendy

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Fifty Years of HF Doppler Observations

Author(s) -

Toru Ogawa,

Takumi Ichinose

Publication year - 2009

Publication title -

data science journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.358

H-Index - 21

ISSN - 1683-1470

DOI - 10.2481/dsj.8.s35

Subject(s) - scope (computer science) , computer science , usability , transparency (behavior) , metadata , implementation , open data , data publishing , reuse , data science , publishing , world wide web , open science , electronic publishing , political science , software engineering , the internet , engineering , computer security , physics , human–computer interaction , astronomy , law , programming language , waste management

High frequency Doppler observations of the ionosphere began in August of 1957 in Kyoto. The number of the observation points worldwide were about 40 in 1980 and are about 20 at present. By this method the movement of the ionosphere reflection height and electron density below the height can be observed. Such variations are occurred by a wide variety of sources

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