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	Provedor de dados Bragantia (2) Autor Blain,Gabriel Constantino (2) Meschiatti,Monica Cristina (2) Pereira,Heloisa Ramos (1) Pires,Regina Célia de Matos (1) Palavra-chave Calibration periods (1) Developing countries (1) Drought monitoring (1) Model performance (1) Modified index of agreement (1) Refined index of agreement (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2016 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Increasing the regional availability of the Standardized Precipitation Index: an operational approach Bragantia Meschiatti,Monica Cristina; Blain,Gabriel Constantino. ABSTRACT The need to use a length of rainfall records of at least 30 years to calculate the Standardized Precipitation Index (SPI) limits its application in several Drought Early Warning Systems of developing countries. Therefore, in order to increase the number of weather stations in which the SPI may be applied, this study quantified the difference among SPI values derived from calibration periods (CP) smaller than 30 years in respect to those computed from the 30-year period of 1985 – 2014 in the State of São Paulo, Brazil (time scales ranging from 1 to 12 months were considered). The correlation, agreement and consistency of SPI values derived from CP ranging from the last 30 to 21 years have been evaluated. The Kolmogorov-Smirnov/Lilliefors test... Tipo: Info:eu-repo/semantics/article Palavras-chave: Drought monitoring; Calibration periods; Developing countries. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000400507 On the performance of three indices of agreement: an easy-to-use r-code for calculating the Willmott indices Bragantia Pereira,Heloisa Ramos; Meschiatti,Monica Cristina; Pires,Regina Célia de Matos; Blain,Gabriel Constantino. ABSTRACT A key step for any modeling study is to compare model-produced estimates with observed/reliable data. The original index of agreement (also known as original Willmott index) has been widely used to measure how well model-produced estimates simulate observed data. However, in its original version such index may lead the user to erroneously select a predicting model. Therefore, this study compared the sensibility of the original index of agreement with its two newer versions (modified and refined) and provided an easy-to-use R-code capable of calculating these three indices. First, the sensibility of the indices was evaluated through Monte Carlo Experiments. These controlled simulations considered different sorts of errors (systematic, random and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Modified index of agreement; Refined index of agreement; Model performance. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200394 Registros recuperados: 2 Primeira ... 1 ... Última

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