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Journal Article

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

MPS-Authors

Ament,  Felix
Boundary Layer Measurements, The Land in the Earth System, MPI for Meteorology, Max Planck Society;

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Hirsch,  Lutz
Observations and Process Studies, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

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Jansen,  Friedhelm
Observations and Process Studies, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

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Stevens,  Bjorn       
Director’s Research Group AES, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

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Citation

Konow, H., Jacob, M., Ament, F., Crewell, S., Ewald, F., Hagen, M., et al. (2019). A unified data set of airborne cloud remote sensing using the HALO Microwave Package (HAMP). Earth System Science Data, 11, 921-934. doi:10.5194/essd-11-921-2019.


Cite as: https://hdl.handle.net/21.11116/0000-0002-4A83-7
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 Al-
titude LOng range research aircraft) during these four campaigns. HAMP comprises microwave radiometers with 26 channels
in the frequency range between 20 and 183 GHz and a 35 GHz 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
5
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
10
data are available from the CERA database for the four campaigns individually (doi:
xxxx
,
xxxx
,
xxxx
,
xxxx
). This data set al-
lows 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.