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- Title
Trade-wind clouds and aerosols characterized by airborne horizontal lidar measurements during the EUREC4A field campaign.
- Authors
Chazette, Patrick; Totems, Julien; Baron, Alexandre; Flamant, Cyrille; Bony, Sandrine
- 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 EUREC 4 A (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 (10.25326/57; Chazette et al., 2020c) to the Level 2 and Level 3 processed data that include a horizontal cloud mask (10.25326/58; Chazette et al., 2020b) and aerosol extinction coefficients (10.25326/59; Chazette et al., 2020a). An intermediate level, companion to Level 1 data (Level 1.5), is also available for calibrated and geolocalized data (10.25326/57; Chazette et al., 2020c).
- Subjects
BARBADOS; LIDAR; AEROSOLS; REMOTE sensing; BOUNDARY layer (Aerodynamics); MICROBIOLOGICAL aerosols; TROPOSPHERIC aerosols; ELECTRONIC data processing
- Publication
Earth System Science Data, 2020, Vol 12, Issue 4, p2919
- ISSN
1866-3508
- Publication type
Article
- DOI
10.5194/essd-12-2919-2020