Record low total ozone during northern winters of 1992 and 1993
- World Meteorological Organization, Geneva (Switzerland)
The authors look at recorded ozone data over the northern hemisphere during the winters of 1992 and 1993. They use data from the World Meteorological Organization data base. During both of these winter, there have been marked decreases in the column ozone levels over North America, Europe, and Siberia, in the latitude belt from 45[degrees]N to 65[degrees]N. During these winters there have been ten times as many days with ozone levels deviated more than 2[sigma] below the 35 year average. They seek explanations for these observations by looking at meterological information. Evidences indicate that there was transport of ozone deficient air masses during these winters. In addition cold air masses with excess ClO show evidence of having transported into the more southern latitudes. The authors conclude there is evidence for both displacement of large air masses, and increased chemical destruction potential, to have contributed to these observed decreases.
- OSTI ID:
- 6063876
- Journal Information:
- Geophysical Research Letters (American Geophysical Union); (United States), Vol. 20:13; ISSN 0094-8276
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NORTHERN HEMISPHERE
ATMOSPHERIC CHEMISTRY
ATMOSPHERIC CIRCULATION
OZONE
ECOLOGICAL CONCENTRATION
CHLORINE OXIDES
EUROPE
MASS TRANSFER
NORTH AMERICA
SIBERIA
ASIA
CHALCOGENIDES
CHEMISTRY
CHLORINE COMPOUNDS
EARTH PLANET
EASTERN EUROPE
HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLANETS
RUSSIAN FEDERATION
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)