Volume 94, Number 5, June 2011
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||24 May 2011|
Scaling and universality in river flow dynamics
Laboratorio sui Sistemi Complessi, Scuola Superiore di Catania - Via Valdisavoia 9, 95123 Catania, Italy, EU
2 Dipartimento di Fisica e Astronomia, Università di Catania, and INFN - Via S. Sofia 64, 95123 Catania, Italy, EU
Accepted: 19 April 2011
We investigate flow dynamics in rivers characterized by basin areas and daily mean discharge spanning different orders of magnitude. We show that the delayed increments evaluated at time scales ranging from days to months can be opportunely rescaled to the same non-Gaussian probability density function. Such a scaling breaks up above a certain critical horizon, where a behavior typical of thermodynamic systems at the critical point emerges. We finally show that both the scaling behavior and the break-up of the scaling are universal features of river flow dynamics.
PACS: 89.75.Da – Systems obeying scaling laws / 92.40.Qk – Surface water, water resources / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion
© EPLA, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.