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Discussion papers
https://doi.org/10.5194/essd-2018-116
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2018-116
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  28 Nov 2018

28 Nov 2018

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This discussion paper is a preprint. It is a manuscript under review for the journal Earth System Science Data (ESSD).

A unified data set of airborne cloud remote sensing using the HALO Microwave Package (HAMP)

Heike Konow1, Marek Jacob2, Felix Ament1,3, Susanne Crewell2, Florian Ewald4, Martin Hagen4, Lutz Hirsch3, Friedhelm Jansen3, Mario Mech2, and Bjorn Stevens3 Heike Konow et al.
  • 1Universität Hamburg, Hamburg, Germany
  • 2Institute for Geophysics and Meteorology, University of Cologne, Cologne, Germany
  • 3Max Planck Institute for Meteorology, Hamburg, Germany
  • 4German Aerospace Center DLR, Oberpfaffenhofen, German

Abstract. Cloud properties and their environmental conditions were observed during four aircraft campaigns over the North Atlantic on 37 flights. The Halo Microwave Package (HAMP) was deployed on the German research aircraft HALO (High Altitude LOng range research aircraft) during these four campaigns. HAMP comprises microwave radiometers with 26 channels in the frequency range between 20 and 183GHz and a 35GHz cloud radar. The four campaigns took place between December 2013 and October 2016 out of Barbados and Iceland. Measured situations cover a wide range of conditions including the dry and wet season over the tropical Atlantic and the cold and warm sectors of mid-latitude cyclones. The data set we present here contains measurements of the radar reflectivity factor and linear depolarization ratio from cloud radar, brightness temperatures from microwave radiometers, and atmospheric profiles from dropsondes. It represents a unique combination of active and passive microwave remote sensing measurements and 525 in-situ measured dropsonde profiles. The data from these different instruments are quality controlled and unified into one common format for easy combination of data and joint analysis. The data are available from the CERA database for the four campaigns individually (https://doi.org/10.1594/WDCC/HALO_measurements_1, https://doi.org/10.1594/WDCC/HALO_measurements_2, https://doi.org/10.1594/WDCC/HALO_measurements_3, https://doi.org/10.1594/WDCC/HALO_measurements_4). This data set allows for analyses to get insight into cloud properties and atmospheric state in remote regions over the tropical and mid-latitude Atlantic. In this paper, we describe the four campaigns, the data, and the quality control applied to the data.

Heike Konow et al.
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Heike Konow et al.
Data sets

HALO Microwave Package measurements during Next-generation Remote sensing for VALidation Studies - North (NARVAL-North) H. Konow, M. Jacob, F. Ament, S. Crewell, F. Ewald, M. Hagen, L. Hirsch, F. Jansen, M. Mech, and B. Stevens https://doi.org/10.1594/WDCC/HALO_measurements_1

HALO Microwave Package measurements during Next-generation Remote sensing for VALidation Studies - South (NARVAL-South) H. Konow, M. Jacob, F. Ament, S. Crewell, F. Ewald, M. Hagen, L. Hirsch, F. Jansen, M. Mech, and B. Stevens https://doi.org/10.1594/WDCC/HALO_measurements_2

HALO Microwave Package measurements during Next-generation Remote sensing for VALidation Studies 2 (NARVAL2) H. Konow, M. Jacob, F. Ament, S. Crewell, F. Ewald, M. Hagen, L. Hirsch, F. Jansen, M. Mech, and B. Stevens https://doi.org/10.1594/WDCC/HALO_measurements_3

HALO Microwave Package measurements during North Atlantic Waveguide and Downstream impact EXperiment (NAWDEX) H. Konow, M. Jacob, F. Ament, S. Crewell, F. Ewald, M. Hagen, L. Hirsch, F. Jansen, M. Mech, and B. Stevens https://doi.org/10.1594/WDCC/HALO_measurements_4

Heike Konow et al.
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Latest update: 14 Dec 2018
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Short summary
High resolution measurements of maritime clouds are relatively scarce. Airborne cloud radar, microwave radiometer and dropsondes observations are used to expand these data. The measurements are unified into one data set to enable easy joint analyses of several or all instruments together to get insight into cloud properties and atmospheric state. The data set contains measurements from four campaigns between December 2013 and October 2016 over the tropical and mid-latitude Atlantic.
High resolution measurements of maritime clouds are relatively scarce. Airborne cloud radar,...
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