Dynamical and ozone measurements by constant volume balloons in the low troposphere during ESCOMPTE experiment

Details Dynamical and ozone measurements by constant volume balloons in the low troposphere during ESCOMPTE experiment Dynamical and ozone measurements by constant volume balloons in the low troposphere during ESCOMPTE experiment

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.471..151b&link_type=abstract

In: 15th ESA Symposium on European Rocket and Balloon Programmes and Related Research, 28 - 31 May 2001, Biarritz, France. Ed.:

Physics

Earth Troposphere, Dynamics, Balloons

Scientific paper

The objectives of the ESCOMPTE program concern the study of emission of the primary pollutants in industrial and urban areas, their transport and their diffusion in the atmosphere. This experiment, realized in the southeast of France, can be used to validate and to ameliorate chemical transport numerical models. One major aim of this experiment is to follow the pollutant plume, and to investigate its thermodynamical and physicochemical time evolution. This is realized with constant volume balloon (CVB), operated by the Centre National d'Etudes Spatiales (CNES) and instrumented by the Laboratoire d'Aérologie (LA) and Météo France. The CVB, located by GPS and equipped with thermodynamical and ozone sensors, fly at constant density in the atmospheric boundary layer. These CVB constitute a real in situ mean to validate the high resolution trajectories. During the first ESCOMPTE campaign which took place in June and July 2000, seven CVB flights have been made, two of them equipped with ozone sensors. We present (I) the experimental network including CVB, radiosonde and balloon tracking stations, (II) the first results of the different flights, and in particular the time evolution of the ozone along the CVB trajectories. Some results will be compared with numerical simulations.

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