MANNGA: A Robust Method for Gap Filling Meteorological Data

• Autor(a) principal: Ventura,Thiago Meirelles
• Data de Publicação: 2019
• Outros Autores: Martins,Claudia Aparecida, Figueiredo,Josiel Maimone de, Oliveira,Allan Gonçalves de, Montanher,Johnata Rodrigo Pinheiro
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Brasileira de Meteorologia (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862019000200315
• topic: multivariate data; artificial neural network; genetic algorithm; open source software

Abstract This paper presents Mannga (Multiple variables with Artificial Neural Network and Genetic Algorithm), a method designed for gap filling meteorological data. The main approach is to estimate the missing data based on values of other meteorological variables measured at the same time in the same local, since the meteorological variables are strongly related. Experimental tests showed the performance of Mannga compared with other two methods typically used by researches in this area. Good results were achieved, with high accuracy even for sequential failures, which is a big challenge for researchers. The core advantages of Mannga are the flexibility of handling different types of meteorological data, the ability of select the best variables to assist the gap filling and the capacity to deal with sequential failures. Moreover, the method is available to public use with the Java programming language.