Articles | Volume 13, issue 5
https://doi.org/10.5194/amt-13-2279-2020
https://doi.org/10.5194/amt-13-2279-2020
Research article
 | 
11 May 2020
Research article |  | 11 May 2020

Toward a variational assimilation of polarimetric radar observations in a convective-scale numerical weather prediction (NWP) model

Guillaume Thomas, Jean-François Mahfouf, and Thibaut Montmerle

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Latest update: 12 Jun 2024
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Short summary
This paper presents the potential of a polarimetric weather radar observation operator for hydrometeor content initialization. The non-linear operator allows to simulate ZHH, ZDR, KDP and ρHV, using the T-Matrix method, prognostic variables forecasted by the AROME-France NWP model and a one-moment microphysical scheme. After sensitivity studies, it has been found that ZHH and ZDR are good candidates for hydrometeor initialization and that KDP seems useful for rain content only.