Definition of a temporal distribution index for high temporal resolution precipitation data over Peninsular Spain and the Balearic Islands: the fractal dimension; and its synoptic implications

Meseguer-Ruiz, Oliver, Osborn, Timothy J., Sarricolea, Pablo, Jones, Philip D., Olcina Cantos, Jorge, Serrano-Notivoli, Roberto and Martin‐Vide, Javier (2019) Definition of a temporal distribution index for high temporal resolution precipitation data over Peninsular Spain and the Balearic Islands: the fractal dimension; and its synoptic implications. Climate Dynamics, 52 (1-2). pp. 439-456. ISSN 0930-7575

[img]
Preview
PDF (Manuscript_rev_final_clean) - Submitted Version
Download (814kB) | Preview

    Abstract

    Precipitation on the Spanish mainland and in the Balearic archipelago exhibits a high degree of spatial and temporal variability, regardless of the temporal resolution of the data considered. The fractal dimension indicates the property of self-similarity, and in the case of this study, wherein it is applied to the temporal behaviour of rainfall at a fine (10-minute) resolution from a total of 48 observatories, it provides insights into its more or less convective nature. The methodology of Jenkinson and Collison which automatically classifies synoptic situations at the surface, as well as an adaptation of this methodology at 500 hPa, was applied in order to gain insights into the synoptic implications of extreme values of the fractal dimension. The highest fractal dimension values in the study area were observed in places with precipitation that has a more random behaviour over time with generally high totals. Four different regions in which the atmospheric mechanisms giving rise to precipitation at the surface differ from the corresponding above-ground mechanisms have been identified in the study area based on the fractal dimension. In the north of the Iberian Peninsula, high fractal dimension values are linked to a lower frequency of anticyclonic situations, whereas the opposite occurs in the central

    Item Type: Article
    Faculty \ School: Faculty of Science > School of Environmental Sciences
    Faculty of Science > Climatic Research Unit
    Depositing User: Pure Connector
    Date Deposited: 23 Feb 2018 15:30
    Last Modified: 19 May 2019 00:51
    URI: https://ueaeprints.uea.ac.uk/id/eprint/66348
    DOI: 10.1007/s00382-018-4159-6

    Actions (login required)

    View Item