We present for the first time continuous hourly measurements of pollen near-surface concentration and lidar derived profiles of particle backscatter coefficients and of volume and particle depolarization ratios during a 5-day pollination event observed in Barcelona, Spain, between 27 and 31 March 2015.

- Michaël Sicard1,2, Rebeca Izquierdo3, Marta Alarcón3, Jordina Belmonte4,5, Adolfo Comerón1, and José Maria Baldasano6,7