Wireless and Satellite Systems. 7th International Conference, WiSATS 2015 Bradford, UK, July 6–7, 2015, Revised Selected Papers

Research Article

Multimodality in the Rainfall Drop Size Distribution in Southern England

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  • @INPROCEEDINGS{10.1007/978-3-319-25479-1_13,
        author={K’ufre-Mfon Ekerete and Francis Hunt and Ifiok Otung and Judith Jeffery},
        title={Multimodality in the Rainfall Drop Size Distribution in Southern England},
        proceedings={Wireless and Satellite Systems. 7th International Conference, WiSATS 2015 Bradford, UK, July 6--7, 2015, Revised Selected Papers},
        proceedings_a={WISATS},
        year={2015},
        month={10},
        keywords={Probabilistic forecasting Theoretical modelling Space and satellite communications Estimation and forecasting Probability distributions Rainfall drop size distribution (DSD) Multimodality},
        doi={10.1007/978-3-319-25479-1_13}
    }
    
  • K’ufre-Mfon Ekerete
    Francis Hunt
    Ifiok Otung
    Judith Jeffery
    Year: 2015
    Multimodality in the Rainfall Drop Size Distribution in Southern England
    WISATS
    Springer
    DOI: 10.1007/978-3-319-25479-1_13
K’ufre-Mfon Ekerete1,*, Francis Hunt1,*, Ifiok Otung1,*, Judith Jeffery2,*
  • 1: University of South Wales
  • 2: Harwell Oxford
*Contact email: kufre-mfon.ekerete@southwales.ac.uk, francis.hunt@southwales.ac.uk, ifiok.otung@southwales.ac.uk, judith.jeffery@stfc.ac.uk

Abstract

Mutimodality appears in the modelling of rainfall drop size distributions (DSDs), and the understanding of the distribution in general is important as it helps in the predicting and mitigation of attenuation due to rain of satellite signals in frequencies above 10 GHz. This work looks at the occurrence of multimodality in the rainfall DSDs in southern England, with data captured at the Chilbolton Observatory for a seven year period (2003 to 2009). The investigation looks at the variation in the number of modes against different rain rates and seasons. It shows that multimodality is a relatively common occurrence, and hence there is a need to model this phenomenon when attempting to predict rain attenuation of satellite signals.