Measurement of the eddy diffusion coefficient of the middle atmosphere from a balloon at low latitude

Measurement of the eddy diffusion coefficient of the middle atmosphere from a balloon at low latitude

A great deal of uncertainty exists concerning the distribution of the vertical eddy diffusion coefficient of the middle atmosphere. A new technique has been developed in this laboratory in which chemical clouds are released in the middle atmosphere from a balloon platform. The expansion of the cloud...

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Veröffentlicht in:Journal of atmospheric and terrestrial physics 1987-10, Vol.49 (10), p.975,979-977,980
Hauptverfasser: Chakrabarty, D.K., Beig, G., Sidhu, J.S., Chakrabarty, H., Narayanan, R., Modi, N.K., Das, S.R., Chakrabarty, P.
Format: Artikel
Sprache:eng
Schlagworte:
Earth, ocean, space
Exact sciences and technology
External geophysics
Physics of the high neutral atmosphere
Tides, waves, convection, winds, turbulence
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Zusammenfassung:A great deal of uncertainty exists concerning the distribution of the vertical eddy diffusion coefficient of the middle atmosphere. A new technique has been developed in this laboratory in which chemical clouds are released in the middle atmosphere from a balloon platform. The expansion of the cloud is monitored by ground photography, from which the value of the eddy diffusion coefficient is calculated. The experiment was successfully tested on 9 March 1985 at Hyderabad (17.5°N, 78.6°E), India. The value of the coefficient was found to be of the order of 10 4 cm 2 s −1 in the altitude range 10–20 km.
ISSN:0021-9169
DOI:10.1016/0021-9169(87)90103-6