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Parameterization of the birch pollen diurnal cycle

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Abstract

The purpose of this study was to investigate the patterns of birch pollen counts over a diurnal cycle and propose a parameterization that is useful for inclusion into operational and research short- and long-term modeling for birch pollen atmospheric transport and deposition at different spatial scales. The evaluation of patterns of diurnal cycles on monthly and interannual bases has been done based on analysis of a 26-year time series of birch pollen counts from the Danish pollen measurement site in Copenhagen. The suggested parameterization, based on a simple trigonometric function, includes dependencies on the time of birch pollen maximum and minimum occurrence on a diurnal cycle, averaged concentration at the end of the previous day, and time shift.

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Acknowledgments

The research activities on the birch pollen-related issues and forecasting for Denmark is also a part of the Enviro-HIRLAM system developments, as well as cooperation with the Finnish Meteorological Institute (FMI) on the POLLEN project. The authors acknowledge Drs. Mikhail Sofiev (FMI), Heike Vogel (Institute for Meteorology and Climatology, Germany), and Alix Rasmussen (DMI) for their constructive discussions. The authors gratefully acknowledge the Danish Asthma-Allergy Association for the long-term cooperation on pollen-related research, monitoring, and forecasting in Denmark. Thanks also go to the anonymous reviewers for their constructive comments and suggestions.

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Authors and Affiliations

  1. Research Department, Danish Meteorological Institute, Lyngbyvej 100, 2100, Copenhagen, Denmark

    A. Mahura, A. Baklanov & U. Korsholm

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  1. A. Mahura
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  2. A. Baklanov
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  3. U. Korsholm
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Correspondence to A. Mahura.

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Mahura, A., Baklanov, A. & Korsholm, U. Parameterization of the birch pollen diurnal cycle. Aerobiologia 25, 203–208 (2009). https://doi.org/10.1007/s10453-009-9125-7

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  • DOI: https://doi.org/10.1007/s10453-009-9125-7

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