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Article Dans Une Revue Earth System Science Data Année : 2019

A comprehensive in situ and remote sensing data set from the Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) campaign

André Ehrlich
Manfred Wendisch
Christof Lüpkes
Matthias Buschmann
Heiko Bozem
Dmitri Chechin
  • Fonction : Auteur
Hans-Christian Clemen
Régis Dupuy
Olliver Eppers
Jörg Hartmann
Andreas Herber
Evelyn Jäkel
  • Fonction : Auteur
Emma Järvinen
Olivier Jourdan
Udo Kästner
  • Fonction : Auteur
Leif-Leonard Kliesch
  • Fonction : Auteur
Franziska Köllner
Mario Mech
Stephan Mertes
  • Fonction : Auteur
Roland Neuber
Elena Ruiz-Donoso
Martin Schnaiter
Johannes Schneider
Johannes Stapf
Marco Zanatta

Résumé

The Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) campaign was carried out northwest of Svalbard (Norway) between 23 May and 6 June 2017. The objective of ACLOUD was to study Arctic boundary layer and mid-level clouds and their role in Arctic amplification. Two research aircraft (Polar 5 and 6) jointly performed 22 research flights over the transition zone between open ocean and closed sea ice. Both aircraft were equipped with identical instrumentation for measurements of basic meteorological parameters, as well as for turbulent and radiative energy fluxes. In addition, on Polar 5 active and passive remote sensing instruments were installed, while Polar 6 operated in situ instruments to characterize cloud and aerosol particles as well as trace gases. A detailed overview of the specifications, data processing, and data quality is provided here. It is shown that the scientific analysis of the ACLOUD data benefits from the coordinated operation of both aircraft. By combining the cloud remote sensing techniques operated on Polar 5, the synergy of multi-instrument cloud retrieval is illustrated. The remote sensing methods were validated using truly collocated in situ and remote sensing observations. The data of identical instruments operated on both aircraft were merged to extend the spatial coverage of mean atmospheric quantities and turbulent and radiative flux measurement. Therefore, the data set of the ACLOUD campaign provides comprehensive in situ and remote sensing observations characterizing the cloudy Arctic atmosphere. All processed, calibrated, and validated data are published in the World Data Center PANGAEA as instrument-separated data subsets (Ehrlich et al., 2019b,
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Dates et versions

hal-03464740 , version 1 (03-12-2021)

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André Ehrlich, Manfred Wendisch, Christof Lüpkes, Matthias Buschmann, Heiko Bozem, et al.. A comprehensive in situ and remote sensing data set from the Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) campaign. Earth System Science Data, 2019, 11, pp.1853 - 1881. ⟨10.5194/essd-11-1853-2019⟩. ⟨hal-03464740⟩
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