Open AccessQBO and QTO of atmospheric trace elements nitrous oxide and chlorofluorocarbons: An update
Author(s) -
R. P. Kane
Publication year - 2007
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v58i1.1136
Subject(s) - chlorofluorocarbon , nitrous oxide , environmental science , latitude , el niño southern oscillation , quasi biennial oscillation , atmospheric sciences , high latitude , climatology , stratosphere , oscillation (cell signaling) , middle latitudes , meteorology , geology , geography , chemistry , biochemistry , organic chemistry , geodesy
An analysis of N2O (nitrous oxide) and CFC (chlorofluorocarbon) concentrations (monthly values) at various locations during 1978-2001 indicated seasonal variations. When these were minimized by calculating 12-month running means (12m) and 3-year running means (37m) were subtracted from 12m, the residues (12m-37m) showed oscillations with peak spacings in the QBO (quasi-biennial oscillation, 2-3 year) and in the QTO (quasi-triennial oscillation, 3-4 year) regions. The QBO at high northern latitudes roughly resembled the QBO of stratospheric low latitude winds and the QTO at low latitudes resembled the QTO of ENSO (El Niño/Southern oscillation).Key words – QBO, QTO, ENSO, Chlorofluorocarbon.