Patterns of Total Precipitation for the City of Rio de Janeiro (1961-2013): Evidence of Normality and Inter Seasonal Correlations
Received Date: Feb 11, 2014 / Accepted Date: Feb 27, 2014 / Published Date: Mar 02, 2014
Using data from the Praça Mauá meteorological station located on Rio de Janeiro (Latitude: -22.88, Longitude: -43.18, Altitude: 11.10m), twelve histograms and normal probability plots were obtained utilizing all available historical data for each month, between the years of 1961 and 2013. The normality of the distributions was evaluated using the Shapiro-Wilk test. From these results a profile for each month’s and season’s distribution patterns was obtained. This, in turn, may complement the current understanding of the intense rain events approached in other studies using the method of searching for intensity, duration and frequency curves (IDF) for the city of Rio de Janeiro, especially for the cases of urban infrastructure planning associated with hydrological and hydraulic dimensioning studies. Gaussian-like distributions were observed for all seasons separately, and for the months of May, October, November and December individually. Spearman and Pearson tests showed positive correlations, in some cases, between total precipitations for each season throughout the historical series.
Keywords: Total precipitation; Historical average; Normality
Citation: Palatnik de Sousa I, Palatnik de Sousa CB (2014) Patterns of Total Precipitation for the City of Rio de Janeiro (1961-2013): Evidence of Normality and Inter Seasonal Correlations. J Earth Sci Clim Change 5: 190. Doi: 10.4172/2157-7617.1000190
Copyright: ©2014 Palatnik de Sousa I, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.