Next Article in Journal
On the Use of Regression Models to Predict Tea Crop Yield Responses to Climate Change: A Case of Nandi East, Sub-County of Nandi County, Kenya
Next Article in Special Issue
Rainfall Variability in January in the Federal District of Brazil from 1981 to 2010
Previous Article in Journal / Special Issue
Analysis of Climate Behavior and Land Use in the City of Rio de Janeiro, RJ, Brazil
Article Menu
Issue 3 (September) cover image

Export Article

Open AccessArticle
Climate 2017, 5(3), 53; doi:10.3390/cli5030053

Identification of Homogeneous Rainfall Regions in the Eastern Watersheds of the State of Paraná, Brazil

Department of Geography, University of São Paulo (USP), 338 Prof. Lineu Prestes Avenue, São Paulo 05508-000, Brazil
*
Authors to whom correspondence should be addressed.
Academic Editors: Valdir Adilson Steinke and Charlei Aparecido da Silva
Received: 19 April 2017 / Revised: 3 July 2017 / Accepted: 6 July 2017 / Published: 15 July 2017
(This article belongs to the Special Issue Studies and Perspectives of Climatology in Brazil)
View Full-Text   |   Download PDF [3138 KB, uploaded 15 July 2017]   |  

Abstract

The objectives of this study are to use a clustering technique to identify homogeneous rainfall regions in the watersheds of the eastern region of the state of Paraná and to associate the spatial and temporal distribution of rainfall with the influences of orography, the ocean and regional atmospheric dynamics. Rainfall data were obtained from 54 pluviometric stations and from eight meteorological stations, which comprise the historical series from 1976 to 2015. A cluster analysis technique was used with the Euclidean distance for measuring proximity and Ward’s method for hierarchical grouping. The Litorânea watershed exhibited the highest rainfall totals in the study area, and the annual average was 2551 mm for the homogeneous group with the highest rainfall. The Ribeira river watershed exhibited the lowest total rainfall (1488 mm); therefore, it was considered a rain shadow region with a more tropical climate due to the concentration of rainfall in the period from September to March. The Alto Iguaçu watershed was characterized by the smallest spatiotemporal variation in rainfall due to its flatter relief and the influence of the subtropical climate. View Full-Text
Keywords: cluster analysis; oceanic influence; orographic effect cluster analysis; oceanic influence; orographic effect
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Terassi, P.M.B.; Galvani, E. Identification of Homogeneous Rainfall Regions in the Eastern Watersheds of the State of Paraná, Brazil. Climate 2017, 5, 53.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Climate EISSN 2225-1154 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top