| Texto completo | |
| Autor(es): |
Traxl, D.
;
Boers, N.
;
Rheinwalt, A.
;
Goswami, B.
;
Kurths, J.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Geophysical Research Letters; v. 43, n. 18, p. 9939-9947, SEP 28 2016. |
| Citações Web of Science: | 5 |
| Resumo | |
The scaling behavior of rainfall has been extensively studied both in terms of event magnitudes and in terms of spatial extents of the events. Different heavy-tailed distributions have been proposed as candidates for both instances, but statistically rigorous treatments are rare. Here we combine the domains of event magnitudes and event area sizes by a spatiotemporal integration of 3-hourly rain rates corresponding to extreme events derived from the quasi-global high-resolution rainfall product Tropical Rainfall Measuring Mission 3B42. A maximum likelihood evaluation reveals that the distribution of spatiotemporally integrated extreme rainfall cluster sizes over the oceans is best described by a truncated power law, calling into question previous statements about scale-free distributions. The observed subpower law behavior of the distribution's tail is evaluated with a simple generative model, which indicates that the exponential truncation of an otherwise scale-free spatiotemporal cluster size distribution over the oceans could be explained by the existence of land masses on the globe. (AU) | |
| Processo FAPESP: | 11/50151-0 - Fenômenos dinâmicos em redes complexas: fundamentos e aplicações |
| Beneficiário: | Elbert Einstein Nehrer Macau |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |