作者: J. Laštovička , P. Križan
DOI: 10.1016/J.PCE.2005.02.003
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摘要: Abstract Ozone profiles measured by ozonesondes often do not display a smooth shape, they exhibit relatively narrow layers of significantly enhanced or depressed ozone concentration, called positive and negative laminae, respectively. At northern middle latitudes, the overall content in laminae per profile reveals strong trend since late 1960s till early 1990s. The changes to pronounced around mid-1990s. total at latitudes as that mid-1990s from positive. This change is more probably dynamical than chemical origin. Zonal winds upper atmosphere near 52°N reveal 1990s, well. indicates possibility Northern Hemisphere dynamics could experience long-term trends