Schroer M, Obermeier A, Bruggemann D, Klemm O
Forschungsartikel (Zeitschrift)A ground-based Differential Absorption Lidar was employed to study the dynamics of atmospheric O-3 within the planetary boundary layer of a basin in the 'Fichtelgebirge' mountains, NE Bavaria. In particular, the night-time dynamics of O-3 linked to the ground were investigated. The Lidar system measured vertical profiles of O-3 up to 1 km above ground. For detailed analysis of the night-time dynamics of ozone, supplementary data from three ground-based stations (measuring mixing ratios of O-3 and NOx, as well as meteorological parameters) are essential. The Lidar results could be evaluated with these data from various altitudes above the basin floor. For the station with the largest (vertical) distance to the ground-based Lidar, the agreement was very good at all times. The Lidar method proved to be useful for examining the spatial distribution of O-3 The observed night-time decrease of O-3 at the bottom of the basin was due to deposition and to advection of air masses containing less O-3 from the mountain slopes.
Klemm, Otto | Professur für Klimatologie (Prof. Klemm) |