Evaluation of chemical ozone loss in the stratosphere over the Kola Peninsula in the 2002/2003 winter from microwave sounding data

Arctic ozone depletion in 2002-2003 measured by ASUR and comparison with POAM observations

“…This can be due to the sampling limitation of the sensor, as it cannot observe high latitudes in early winter [ Sonkaew et al , 2011]. As expected, the loss determined from local measurements – Kiruna and Kola peninsula – [ Raffalski et al , 2005; Ryskin and Kulikov , 2008] departs slightly from the ASUR estimations because of the uneven or undersampling of the vortex over a single station, which essentially delineates the developments of the polar vortex over the stations. Since the POAM and Mimosa‐Chim ozone losses are similar to that of ASUR, the above mentioned comparisons hold good for POAM and Mimosa‐Chim as well.…”

“…Both of the surveys provided a good set of ASUR trace gas measurements, including ozone and Chlorine Monoxide (ClO). We investigate the ozone loss features of the winter using the ASUR observations and compare with the results drawn from other works [ Tilmes et al , 2003; Urban et al , 2004; Christensen et al , 2005; Feng et al , 2005; Goutail et al , 2005; Grooß et al , 2005; Raffalski et al , 2005; Singleton et al , 2005; Streibel et al , 2006; Tripathi et al , 2006; Konopka et al , 2007; Müller et al , 2007; El Amraoui et al , 2008; Ryskin and Kulikov , 2008; Sonkaew et al , 2011]. In this study we analyze the meteorological situation, evolution of ozone and chemical ozone loss with the ASUR measurements, which have hitherto not been used for the study of Arctic ozone loss in 2002/2003.…”