ESTIMATIVA DE TEMPERATURAS ABSOLUTAS USANDO DADOS CLIMÁTICOS E ORBITAIS SOBRE O TERRITÓRIO BRASILEIRO

Revista Caatinga. 2011;24(3):120-127

 

Journal Homepage

Journal Title: Revista Caatinga

ISSN: 0100-316X (Print); 1983-2125 (Online)

Publisher: Universidade Federal Rural do Semi-Árido

Society/Institution: Universidade Federal Rural do Semi-Árido

LCC Subject Category: Agriculture | Science: Biology (General)

Country of publisher: Brazil

Language of fulltext: English

Full-text formats available: PDF, XML

 

AUTHORS

PABRÍCIO MARCOS OLIVEIRA LOPES
MARCOS ADAMI
ENIO BUENO PEREIRA
GEBER BARBOSA DE ALBUQUERQUE MOURA
MAURÍCIO ALVES MOREIRA

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 48 weeks

 

Abstract | Full Text

This work aimed to determine over the Brazilian territory extreme air temperatures: maximum (Tx) and minimum (Tn) absolute, using multiple regression techniques, orbital data and climatological. The data of Tx and Tn were observed between the years of 1961 and 1990 in 204 meteorological stations by the National Institute of Meteorology (INMET), and topography information was obtained from the program Shuttle Radar Topography Mission (SRTM). The multiple regression models were validated with the observational data of 30 meteorological stations in different locations than those generated. The statistical analysis was performed using bootstrap techniques. The results showed that the multiple regression model for Tn presented good agreement with the observed data (R² = 0.86) showing no tendencies to overestimate or underestimate Tn. The Tn varied between -12 to 25 °C and the Tx between 31 and 42 °C. For the Tx the results were not as satisfactory. In a first approach, the limits of the Tn can be used for data quality control of the meteorological station. The map of Tn can be used to subsidize research in agroclimatic zoning in the region where these data are not available.