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High level warmings and total ozone over tropical region

Mukherjee, BK and Ramanamurty, BhV (1973) High level warmings and total ozone over tropical region. Pure and Applied Geophysics, 106-10. pp. 1018-1026.

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The rocketsonde data obtained from the launchings made at Thumba (8°32′15″N, 76°51′48″E) during the winter period 1970–71, as already reported, have indicated that warmings of noticeable magnitude occurred at high levels (upper stratosphere and mesosphere) over this tropical station during the period mentioned. The mean monthly radiosonde temperatures of 50, 100 and 300 mb levels at Thumba (Trivandrum) and Delhi (28°35′N, 77°12′E) during the same period have also pointed out certain anomalies consistent with the warmings referred to above at Thumba. The radiosonde temperatures of the two stations, Thumba (Trivandrum) and Delhi, have now been examined, along with the values of total ozone, for the ten winter periods commencing from 1961–1962. The analysis has pointed out the possibility of high-level warmings also having occurred in the past over the Indian region during the winters of 1963–1964 and 1967–1968, which are also the periods when prominent warmings are definitely known to have occurred at higher latitudes. The behaviour of total ozone has been found to be different in the different years of the warmings. The features noticed have been presented and discussed.

Item Type: Article
Additional Information: Copyright of this article belongs to Birkhauser Verlag
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 22 May 2016 04:11
Last Modified: 22 May 2016 04:11

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