Airborne Hirst volumetric sampling gives an insight into atmospheric dispersion of pollen and fungal spores

Description of Flight LogsThis dataset includes six flight logs from airborne sampling campaigns conducted between August 30 and September 1, 2024, over Sjælland, Denmark, using FlyHirst — a lightweight Hirst-type volumetric sampler mounted on an ultralight aircraft. The goal was to collect high-resolution airborne pollen and fungal spore data at varying altitudes and across different land use types. Flight 1 (Aug 30, afternoon) collected cumulative samples over agricultural areas but lacked temporal resolution due to a technical malfunction. (Flight1.kml; Figure S1) Flight 2 (Aug 30, evening) sampled mixed agricultural and forested landscapes at two altitudes (250 m and 407 m a.g.l.). (Flight2.kml; Figure S2) Flight 3 (Aug 31, afternoon) covered forests, water bodies, and crop fields, allowing comparison of bioaerosol concentrations across land use types. (Flight3.kml; Figures S3 and S4) Flight 4 (Aug 31, evening) utilized both FlyHirst and isokinetic samplers at multiple altitudes to validate particle concentrations over primarily agricultural terrain. (Flight4.kml; Figure S5) Flight 5 (Sep 1, afternoon) performed a high-altitude profile sampling up to 2797 m a.g.l., targeting vertical distribution patterns of pollen and spores. (Flight5.kml; Figure S6) Flight 6 (Sep 1, evening) conducted low-altitude transects (~317 m a.g.l.) across agricultural and urban areas. (Flight6.kml; Figure S7) All flights provide minute-resolved spatially linked data, supporting detailed 3D mapping of bioaerosol concentrations and diversity.