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Trade-wind clouds and aerosols characterized by airborne horizontal lidar measurements during the EUREC4A field campaign

Abstract : From 23 January to 13 February 2020, 20 manned research flights were conducted over the tropical Atlantic, off the coast of Barbados (13 • 30 N, 58 • 30 W), to characterize the trade-wind clouds generated by shallow convection. These flights were conducted as part of the international EUREC4A (Elucidating the role of cloud-circulation coupling in climate) field campaign. One of the objectives of these flights was to characterize the trade-wind cumuli at their base for a range of meteorological conditions, convective mesoscale organizations and times of the day, with the help of sidewards-staring remote sensing instruments (lidar and radar). This paper presents the datasets associated with horizontal lidar measurements. The lidar sampled clouds from a lateral window of the aircraft over a range of about 8 km, with a horizontal resolution of 15 m, over a rectangle pattern of 20 km by 130 km. The measurements made possible the characterization of the size distribution of clouds near their base and the presence of dust-like aerosols within and above the marine boundary layer. This paper presents the measurements and the different levels of data processing, ranging from the raw Level 1 data (
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https://hal.sorbonne-universite.fr/hal-03022540
Contributor : Sandrine Bony <>
Submitted on : Tuesday, November 24, 2020 - 7:00:46 PM
Last modification on : Sunday, December 13, 2020 - 3:07:42 AM

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Patrick Chazette, Julien Totems, Alexandre Baron, Cyrille Flamant, Sandrine Bony. Trade-wind clouds and aerosols characterized by airborne horizontal lidar measurements during the EUREC4A field campaign. Earth System Science Data, Copernicus Publications, 2020, 12 (4), pp.2919-2936. ⟨10.5194/essd-12-2919-2020⟩. ⟨hal-03022540⟩

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