Aeolus Data Validation for an Extreme Precipitation Event in Greece with the COSMO NWP Model

The study of atmospheric models and climate systems has been hampered by the restricted availability of wind profile measurements. By recording wind profiles in near real time and giving useful information for Numerical Weather Prediction (NWP) models, the Doppler wind lidar technology used in the E...

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Bibliographic Details
Published in:Water (Basel) 2023-11, Vol.15 (21), p.3820
Main Authors: Avgoustoglou, Euripides, Matsangouras, Ioannis, Pytharoulis, Ioannis, Nastos, Panagiotis
Format: Article
Language:English
Subjects:
Analysis
Case studies
Data assimilation
Lasers
Numerical weather forecasting
Optical radar
Precipitation
Remote sensing
Satellites
Sea level
Storms
Weather
Weather forecasting
Wind
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Summary:The study of atmospheric models and climate systems has been hampered by the restricted availability of wind profile measurements. By recording wind profiles in near real time and giving useful information for Numerical Weather Prediction (NWP) models, the Doppler wind lidar technology used in the European Space Agency’s Aeolus mission is expected to unravel this problem. By analyzing the precipitation from IANOS medicane, which occurred over the Thessaly plain in September 2020, a case study utilizing the COSMO NWP model illustrates the potential usefulness of Aeolus data in strengthening NWP models. Run in hindcast mode and forced by analyses with and without Aeolus, the model assimilated data that were produced at the European Centre for Medium-Range Forecasts (ECMWF). Evaluation against observations from Greek synoptic stations showed that the model precipitation using the Aeolus-assimilated data preponderated over the model results without their inclusion. This work aims to demonstrate the additional value of the Aeolus project towards the expansion of our knowledge of Earth’s atmosphere, particularly the improvement of our capacity to estimate severe weather events via the use of Aeolus with NWP models.
ISSN:2073-4441
2073-4441
DOI:10.3390/w15213820