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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 7, issue 5 | Copyright
Atmos. Meas. Tech., 7, 1201-1211, 2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 09 May 2014

Research article | 09 May 2014

Tropospheric water vapour and relative humidity profiles from lidar and microwave radiometry

F. Navas-Guzmán1,2,*, J. Fernández-Gálvez1,2, M. J. Granados-Muñoz1,2, J. L. Guerrero-Rascado1,2, J. A. Bravo-Aranda1,2, and L. Alados-Arboledas1,2 F. Navas-Guzmán et al.
  • 1Department of Applied Physics, University of Granada, Granada, 18071, Spain
  • 2Andalusian Institute for Earth System Research (IISTA), Av. del Mediterráneo s/n, 18006, Granada, Spain
  • *now at: Institute of Applied Physics (IAP), University of Bern, Bern, Switzerland

Abstract. In this paper, we outline an iterative method to calibrate the water vapour mixing ratio profiles retrieved from Raman lidar measurements. Simultaneous and co-located radiosonde data are used for this purpose and the calibration results obtained during a radiosonde campaign in summer and autumn 2011 are presented. The water vapour profiles measured during night-time by the Raman lidar and radiosondes are compared and the differences between the methodologies are discussed. Then, a new approach to obtain relative humidity profiles by combination of simultaneous profiles of temperature (retrieved from a microwave radiometer) and water vapour mixing ratio (from a Raman lidar) is addressed. In the last part of this work, a statistical analysis of water vapour mixing ratio and relative humidity profiles obtained during 1 year of simultaneous measurements is presented.

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