Inadvertent localized intensification of precipitation by aircraft - Data

Eleven years of dual-polarization weather radar data were used to investigate the origin of areas of localized intensification of precipitation spotted in the vicinity of Helsinki-Vantaa airport. It was observed that existing precipitation is enhanced locally on spatial scales of few kilometers to several tens of kilometers. The precipitation intensity in these localized areas was 2-10 times higher than the background large-scale precipitation rate. This dataset includes dual-polarisation radar observations from University of Helsinki Kumpula radar and Kerava radar owned by Vaisala Inc. Additionally, ground-based particle video imager data is included for one of the events. More information about the events is given in the enclosed table.