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High-Resolution Dynamical Downscaling of ERA-Interim Using the WRF Regional Climate Model for the Area of Poland. Part 2: Model Performance with Respect to Automatically Derived Circulation Types

Ojrzyńska, H., Kryza, M., Wałaszek, K., Szymanowski, M., Werner, Malgorzata and Dore, A.J. (2017) High-Resolution Dynamical Downscaling of ERA-Interim Using the WRF Regional Climate Model for the Area of Poland. Part 2: Model Performance with Respect to Automatically Derived Circulation Types. Pure and Applied Geophysics, 174 (2). pp. 527-550. ISSN 0033-4553 Online: 1420-9136

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Abstract

This paper presents the application of the high-resolution WRF model data for the automatic classification of the atmospheric circulation types and the evaluation of the model results for daily rainfall and air temperatures. The WRF model evaluation is performed by comparison with measurements and gridded data (E-OBS). The study is focused on the area of Poland and covers the 1981–2010 period, for which the WRF model has been run using three nested domains with spatial resolution of 45 km × 45 km, 15 km × 15 km and 5 km × 5 km. For the model evaluation, we have used the data from the innermost domain, and data from the second domain were used for circulation typology. According to the circulation type analysis, the anticyclonic types (AAD and AAW) are the most frequent. The WRF model is able to reproduce the daily air temperatures and the error statistics are better, compared with the interpolation-based gridded dataset. The high-resolution WRF model shows a higher spatial variability of both air temperature and rainfall, compared with the E-OBS dataset. For the rainfall, the WRF model, in general, overestimates the measured values. The model performance shows a seasonal pattern and is also dependent on the atmospheric circulation type, especially for daily rainfall.

Item Type: Article
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© The Author(s) 2016 Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The full-text can be accessed via the official URL.
The article has also been published as a book chapter:
Ojrzyńska, H., Kryza, M., Wałaszek, K., Szymanowski, M., Werner, Małgorzata and Dore, A.J. (2018) High-Resolution Dynamical Downscaling of ERA-Interim Using the WRF Regional Climate Model for the Area of Poland. Part 2: Model Performance with Respect to Automatically Derived Circulation Types. In: Geoinformatics and Atmospheric Science. Pageoph Topical Volumes . Birkhäuser (Springer International Publishing), Cham, pp. 69-92. ISBN Print: 978-3-319-66091-2 Online: 978-3-319-66092-9 - https://link.springer.com/chapter/10.1007/978-3-319-66092-9_5

Uncontrolled Keywords: atmospheric circulation, rainfall, air temperature, WRF dynamical downscaling, ERA-Interim circulation types
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > Q Science (General)
Divisions: Divisions (2019 and before) > Academic Departments > Institute of Science and the Environment
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Copyright Info: Open Access article
Depositing User: Malgorzata Werner
Date Deposited: 14 Jun 2019 11:27
Last Modified: 14 Jun 2019 11:27
URI: https://eprints.worc.ac.uk/id/eprint/8209

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