COSMO-CLM Russian Arctic Hindcast, 1980–2016: Surface Wind Speed Evaluation and Future Perspectives

Platonov, V.; Boiko, A.

Авторы: Platonov Vladimir, Boiko Aksinia
Журнал: Environmental Sciences Proceedings
Том: 19
Номер: 1
Год издания: 2022
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Номер статьи: 39
DOI: 10.3390/ecas2022-12823
Аннотация: The surface wind speed reproduction by the novel COSMO-CLM Russian Arctic hindcast, with a ~12 km grid size, for the period 1980–2016, was evaluated in this study, according to station and satellite data. The mean wind speed was well reproduced by the hindcast, while the errors related mainly to cases when the wind speed was overestimated by the model data, up to 2 m/s. However, the extreme values (0.95 and 0.999 quantiles), according to the hindcast, were underestimated to up to −5–−10 m/s. The evaluation, according to the SAR Radarsat-2, high-resolution satellite images, including the FSS score, revealed the hindcast’s capability to reproduce β-mesoscale processes, unlike the γ-scale processes. For all 5 m/s threshold-exceeding features, a ~45 km resolution was enough for the relevant reproduction by the hindcast. At the same time, the given model grid size (~12 km) was not sufficient to reproduce extreme wind speeds, exceeding 20 m/s. Future perspectives of the COSMO-CLM Russian Arctic hindcast include the evaluations of diurnal cycles; wind speed trends; satellite data analysis for other regions of the Russian Arctic; the focus on extreme and severe events’ statistics evaluation; and quality estimation, based on other high-resolution, recent datasets.
Добавил в систему: Платонов Владимир Сергеевич

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