Ozone trends at northern mid- and high latitudes – a European perspective

Summertime ozone at northern mid-latitudes

Summertime low - ozone episodes at northern high latitudes

By Y. J. ORSOLINI1∗, H. ESKES2, G. HANSEN1, U.-P. HOPPE3, A. KYLLING1, E. KYRÖ4, J. NOTHOLT5, R. VAN DER A2 and P. VON DER GATHEN6 1Norwegian Institute for Air Research, Kjeller, Norway 2Royal Netherlands Meteorological Institute, De Bilt, the Netherlands 3Norwegian Defence Research Establishment, Kjeller, Norway 4Finnish Meteorological Institute, Sodankyla, Finland 5University of Bremen, Germa...

Change in ozone trends at southern high latitudes

[1] Long-term ozone variations at 60–70 S in spring are investigated using ground-based and satellite measurements. Strong positive correlation is shown between year-to-year variations of ozone and temperature in the Antarctic collar region in Septembers and Octobers. Based on this relationship, the effect of year-to-year variations in vortex dynamics has been filtered out. This process results...

Fall vortex ozone as a predictor of springtime total ozone at high northern latitudes

Understanding the impact of atmospheric dynamical variability on observed changes in stratospheric O3 is a key to understanding how O3 will change with future climate dynamics and trace gas abundances. In this paper we examine the linkage between interannual variability in total column O3 at northern high latitudes in March and lower-tomid stratospheric vortex O3 in the prior November. We find ...

Tropospheric ozone column retrieval at northern mid-latitudes from the Ozone Monitoring Instrument by means of a neural network algorithm

Monitoring tropospheric ozone from space is of critical importance in order to gain more thorough knowledge on phenomena affecting air quality and the greenhouse effect. Deriving information on tropospheric ozone from UV/VIS nadir satellite spectrometers is difficult owing to the weak sensitivity of the measured radiance spectra to variations of ozone in the troposphere. Here we propose an alte...