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Tropospheric Ozone DIAL for Air Quality, Climate Moniroting and Validation Studies

A Apituley, M Hoexum, KM Wilson, C Potma

A Differential Absorption Lidar (DIAL) called tropO3 for routine profiling of tropospheric ozone is presented. The instrument is located at RIVM in Bilthoven, The Netherlands (52 07 N, 05 12 E). The instrument was built for routine observations and validation purposes. Recently, the system was modernised and upgraded for a study to validate tropospheric ozone products from AURA/OMI and to analyse the temporal and spatial variability and representativeness of satellite measurements of tropospheric ozone. Under clear sky conditions, a full ozone profile from 1 km up to 12 km can be created in about 30 min., which enables high-resolution time series of tropospheric ozone pro?les needed for the variability and representativeness study. Operation under low
level cloud conditions with coverage up to 4 octa is possible. A description of the modernisation of the system is given and a re-assessment of the instrument performance is shown utilizing ozone sonde data from nearby stations in de Bilt (NL) and Uccle (B). Data is presented from an intensive observation period (CINDI) that will be used in
the analysis of satellite data.

Bibliografische gegevens

A Apituley, M Hoexum, KM Wilson, C Potma. Tropospheric Ozone DIAL for Air Quality, Climate Moniroting and Validation Studies
published, 2010, 2010, yes

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