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Title: Abrupt change in total ozone column over Indian Antarctic station
Authors: Tripathi, O P
Jain, S L
Issue Date: Feb-2003
Publisher: NISCAIR-CSIR, India
Abstract: The solar radiation at five wavelengths, namely, 300 nm, 305 nm, 312 nm, 940 nm and 1020 nm has been measured using narrow band (2.5 nm FWHM) filters with a microprocessor-based sun-photometer from January 1997 to February 1998 on hourly basis on all clear days at Maitri, an Indian Antarctic station (70°45ʹS, 11°45ʹE),  during sixteenth Indian Scientific Antarctic expedition. The total column ozone has been estimated from these measurements. Very low ozone value have been observed during Antarctic spring, which confirmed the continuity of ozone hole phenomenon. Abrupt increase in total ozone column has been observed during ozone hole period. This observation has been confirmed by the same event in total ozone mapping spectrometer (TOMS) measurements and may be attributed to planetary wave phenomenon.
Page(s): 38-42
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.32(1) [February 2003]

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