Variability Space-Temporal of Annual Precipitation of Wet and Dry Period in the Paraíba State

Paulo Roberto Megna Francisco, Raimundo Mainar de Medeiros, Alexandra Lima Tavares, Djail Santos

Abstract


Rainfall is considered an important climatological variable in the semiarid region of Brazil, mainly due to irregularity in its temporal and spatial distribution. It has been aimed at achieving the analysis of spatio-temporal variability of rainfall, maximum, minimum and average annual for the State of Paraíba. Data were used with 30 or more years of observation, analysis was carried out for consistency and homogeneity. To analyze the spatial distribution was used Surfer and their statistical software using the Kriging interpolation method which is considered a good data interpolation methodology and producing maps. From the results it is observed that in January were the most significant rainfall and isolated regions of the Sertão and Alto Sertão Paraiba. In February the distribution already became homogeneous. The months of March and April are the rainy months in every state and from May to Augusts the highest rainfall concentrated in the eastern and southern coastal strip. September considered the driest month and throughout the year rainfall occurred in isolation. The annual distribution showed high spatial variability of rainfall in the central sector of the state with minor fluctuations ranging from 300 to 500mm, in the Sertão and Alto Sertão flowed from 700 to 900mm; in Brejo and Agreste from 700 to 1,200 mm; and Litoral of 1,200 to 1,600mm

Keywords


Rainfall, geostatistics, kriging, spatial distribution

Full Text:

PDF


DOI: https://doi.org/10.29150/jhrs.v6i1.22729

Refbacks

  • There are currently no refbacks.


Copyright (c)