Preprint Article Version 1 This version is not peer-reviewed

Mesoscale Resolution Radar Data Assimilation Experiments with the Harmonie Model

Version 1 : Received: 3 August 2018 / Approved: 3 August 2018 / Online: 3 August 2018 (12:56:15 CEST)

How to cite: Ivanov, S.; Michaelides, S.; Ruban, I. Mesoscale Resolution Radar Data Assimilation Experiments with the Harmonie Model. Preprints 2018, 2018080068 (doi: 10.20944/preprints201808.0068.v1). Ivanov, S.; Michaelides, S.; Ruban, I. Mesoscale Resolution Radar Data Assimilation Experiments with the Harmonie Model. Preprints 2018, 2018080068 (doi: 10.20944/preprints201808.0068.v1).

Abstract

This study presents a pre-processing approach adopted for the radar reflectivity data assimilation and results of simulations with the Harmonie numerical weather prediction model. The method shows an improvement of precipitation prediction within the radar location area in both the rain rates and spatial pattern presentation. With the assimilation of radar data, the model simulates larger water content in the middle troposphere within the layer from 1 to 6 km, with major variations at 2.5–3 km; it also reproduces better the mesoscale belt and cell patterns of precipitation fields.

Subject Areas

Harmonie model; radar data assimilation; pre-processing; mesoscale precipitation patterns

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