Absorption of radio waves during a solar eclipse | Zendy

D. Patel | Zendy; K. M. Kotadia | Zendy; P. D. Lele | Zendy; K. G. Jani | Zendy

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Absorption of radio waves during a solar eclipse

Author(s) -

D. Patel,

K. M. Kotadia,

P. D. Lele,

K. G. Jani

Publication year - 1986

Publication title -

journal of earth system science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.444

H-Index - 52

eISSN - 0973-774X

pISSN - 0253-4126

DOI - 10.1007/bf02871864

Subject(s) - solar eclipse , ionosphere , ionospheric absorption , radio wave , absorption (acoustics) , physics , eclipse , electron density , astrophysics , d region , phase (matter) , computational physics , astronomy , electron , atmospheric sciences , optics , nuclear physics , quantum mechanics

In this paper, the results of our observations on Al-method ionospheric absorption of radio waves on 1.8 and 2.2 MHz during the solar eclipse of 16 February 1980 are presented. The absorption decreased by about 41% and 46% of the normal value respectively at the above two frequencies at Ahmedabad following the maximum phase of the eclipse (about 77% of full disc) with a delay of 18 minutes. The quantityA T (f) which is a measure of εN vdh is now examined for better clarity of the influence of the changes in theE-layer. The results are discussed in relation to the observations of the ionizing radiations from the sun, changes in the electron density, recombination rate and absorption in the underlyingD andE regions.

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