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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union

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Nonlin. Processes Geophys., 21, 555-567, 2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
25 Apr 2014
Scale invariant events and dry spells for medium-resolution local rain data
A. Deluca1,2 and Á. Corral1,2 1Centre de Recerca Matemàtica, Edifici Cc, Campus Bellaterra, 08193 Bellaterra, Barcelona, Spain
2Departament de Matemàtiques, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
Abstract. We analyze distributions of rain-event sizes, rain-event durations, and dry-spell durations for data obtained from a network of 20 rain gauges scattered in a region of the northwestern Mediterranean coast. While power-law distributions model the dry-spell durations with a common exponent 1.50 ± 0.05, density analysis is inconclusive for event sizes and event durations, due to finite size effects. However, we present alternative evidence of the existence of scale invariance in these distributions by means of different data collapses of the distributions. These results demonstrate that scaling properties of rain events and dry spells can also be observed for medium-resolution rain data.

Citation: Deluca, A. and Corral, Á.: Scale invariant events and dry spells for medium-resolution local rain data, Nonlin. Processes Geophys., 21, 555-567,, 2014.
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