ERIES-CU-BOLD: Coastal Urban-BOundary Layer Dynamics

This dataset contains continuous Doppler-wind lidar measurements of the coastal urban boundary layer (CUBL) and the adjacent marine atmospheric boundary layer over the city and Port of Genoa, Italy, acquired between 3 July and 27 August 2025 in the framework of the ERIES Transnational Access project ERIES-CU-BOLD (Coastal Urban-BOundary Layer Dynamics). Measurements were collected with a Vaisala WindCube 400S (2018 version) pulsed scanning Doppler lidar (instrument identifier WLS400s-118) operated by the University of Genoa from a quay of the Port of Genoa (44.4175°N, 8.7768°E; 5 m above mean sea level). Three predefined scan families were operated cyclically: (i) six Range-Height Indicator (RHI) scans at azimuths 65°, 75°, 85°, 95°, 105°, and 115° (0–15° elevation, 0.5° resolution), (ii) five Plan Position Indicator (PPI) scans across azimuths 65°–115° at fixed elevations 4°, 6°, 8°, 10°, and 15°, and (iii) one Doppler Beam Swinging (DBS) profile (five beams at azimuths 0°, V, 180°, 270°, 90°, elevations 75°/90°). RHI and PPI scans cover 300–12,150 m at 75 m gate spacing; DBS profiles cover 150–3,330 m at 10 m gate spacing. The campaign is split into two sub-campaigns — T1 (3–27 July 2025; RHI + PPI only) and T2 (27 July – 27 August 2025; RHI + PPI + DBS) — yielding more than 92,000 NetCDF-4 files (CF/Radial 2.0) packaged in two monthly ZIP archives. The dataset enables investigation of CUBL structure, urban heat-island circulation, sea- and land-breeze regimes, internal boundary layer development over coastal cities, low-level jets, and turbulence statistics for wind-engineering applications, and provides a benchmark for the validation of meso- and micro-scale numerical simulations of the Genoa metropolitan area.