Negro and Danube are mirror rivers

作者:Goncalves R*; Pinto A
来源:Journal of Difference Equations and Applications, 2010, 16(12): 1491-1499.
DOI:10.1080/10236190902845662

摘要

We study the European river Danube and the South American river Negro daily water levels. We present a fit for the Negro daily water level period and standard deviation. Unexpectedly, we discover that the river Negro and Danube are mirror rivers in the sense that the daily water levels fluctuations histograms are close to the universal non-parametric BHP and reversed BHP, respectively. Hence, the probability of a certain positive fluctuation range in the river Negro is, approximately, equal to the probability of the corresponding symmetric negative fluctuation range in the river Danube.

  • 出版日期2010