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Advances in Geosciences An open-access journal for refereed proceedings and special publications
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Volume 7
Adv. Geosci., 7, 141-146, 2006
https://doi.org/10.5194/adgeo-7-141-2006
© Author(s) 2006. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Adv. Geosci., 7, 141-146, 2006
https://doi.org/10.5194/adgeo-7-141-2006
© Author(s) 2006. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  20 Feb 2006

20 Feb 2006

Assessing uncertainty in radar measurements on simplified meteorological scenarios

L. Molini, A. Parodi, N. Rebora, and F. Siccardi L. Molini et al.
  • CIMA, University of Genoa, Savona, Italy

Abstract. A three-dimensional radar simulator model (RSM) developed by Haase (1998) is coupled with the nonhydrostatic mesoscale weather forecast model Lokal-Modell (LM). The radar simulator is able to model reflectivity measurements by using the following meteorological fields, generated by Lokal Modell, as inputs: temperature, pressure, water vapour content, cloud water content, cloud ice content, rain sedimentation flux and snow sedimentation flux. This work focuses on the assessment of some uncertainty sources associated with radar measurements:

  1. absorption by the atmospheric gases, e.g., molecular oxygen, water vapour, and nitrogen;
  2. attenuation due to the presence of a highly reflecting structure between the radar and a "target structure".
RSM results for a simplified meteorological scenario, consisting of a humid updraft on a flat surface and four cells placed around it, are presented.

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