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Some observations on the role of planetary waves in determining the spring time ozone distribution in the Antarctic
Author(s) -
Chandra S.,
McPeters R. D.
Publication year - 1986
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl013i012p01224
Subject(s) - atmospheric sciences , ozone depletion , longitude , ozone , total ozone mapping spectrometer , environmental science , advection , ozone layer , climatology , ultraviolet , latitude , geology , meteorology , stratosphere , physics , geodesy , optics , thermodynamics
Ozone measurements from 1970 to 1984 from the Nimbus 4 backscattered ultraviolet (BUV) and the Nimbus 7 solar backscattered ultraviolet (SBUV) spectrometers show significant decrease in total ozone only after 1979. The downward trend is most apparent in October south of 70°S in the longitude zone 0° to 30°W where planetary wave activity is weak. Outside this longitude region, the trend in total Ozone is much smaller due to strong interannual variability of wave activity. This paper gives a phenomenological description of ozone depletion in the Antarctic region based on vertical advection and transient planetary waves.