dor_id: 4128792

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

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336.#.#.a: Artículo

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351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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270.#.#.d: MX

270.1.#.d: México

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856.4.0.u: https://www.revistascca.unam.mx/atm/index.php/atm/article/view/53155/46891

100.1.#.a: Guerreiro Miranda, Bruno; Galante Negri, Rogério; Albertani Pampuch, Luana

524.#.#.a: Guerreiro Miranda, Bruno, et al. (2023). Using clustering algorithms and GPM data to identify spatial precipitation patterns over southeastern Brazil. Atmósfera; Vol. 37, 2023; 365-381. Recuperado de https://repositorio.unam.mx/contenidos/4128792

245.1.0.a: Using clustering algorithms and GPM data to identify spatial precipitation patterns over southeastern Brazil

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM

264.#.0.c: 2023

264.#.1.c: 2023-03-29

653.#.#.a: clustering algorithms; precipitation; southeastern Brazil; GPM

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC 4.0 Internacional, https://creativecommons.org/licenses/by-nc/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico editora@atmosfera.unam.mx

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041.#.7.h: eng

520.3.#.a: Southeastern Brazil comprises an important geoeconomic and populous region in South America. Consequently, it is essential to analyze and understand the precipitation profiles in this region. Among different data sources and techniques available to perform such study, the use of clustering algorithms and information from the Global Precipitation Measurement (GPM) project rises as a convenient yet few exploited alternative. Precisely, this study employs the K-Means, the Hierarchical Ward, and the Self-Organizing Maps methods to cluster the annual and seasonal precipitation data from GPM project recorded from 2001 to 2019. The adopted methods are compared in terms of quantitative measures and the number of clusters defined through a well-established rule. The results demonstrate that the annual and seasonal periods are organized according to different number of clusters. Moreover, the results allow: identify the presence of a spatially heterogeneous distribution in the study area; to conclude that the K-Means algorithm is a suitable clustering method in the context of this investigation when compared to Ward’s Hierarchical and Self-Organizing Maps methods in terms of the Calinski-Harabasz and Davies-Bouldin measures; and that the spatial precipitation distribution over Southeastern Brazil is represented by 10 clusters in annual and summer periods, 11 clusters in autumn and spring and 9 clusters in winter period.

773.1.#.t: Atmósfera; Vol. 37 (2023); 365-381

773.1.#.o: https://www.revistascca.unam.mx/atm/index.php/atm/index

022.#.#.a: ISSN electrónico: 2395-8812; ISSN impreso: 0187-6236

310.#.#.a: Trimestral

300.#.#.a: Páginas: 365-381

264.#.1.b: Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM

doi: https://doi.org/10.20937/ATM.53155

handle: 76f530a110935a9e

harvesting_date: 2023-06-20 16:00:00.0

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Artículo

Using clustering algorithms and GPM data to identify spatial precipitation patterns over southeastern Brazil

Guerreiro Miranda, Bruno; Galante Negri, Rogério; Albertani Pampuch, Luana

Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM, publicado en Atmósfera, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Guerreiro Miranda, Bruno, et al. (2023). Using clustering algorithms and GPM data to identify spatial precipitation patterns over southeastern Brazil. Atmósfera; Vol. 37, 2023; 365-381. Recuperado de https://repositorio.unam.mx/contenidos/4128792

Descripción del recurso

Autor(es)
Guerreiro Miranda, Bruno; Galante Negri, Rogério; Albertani Pampuch, Luana
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Using clustering algorithms and GPM data to identify spatial precipitation patterns over southeastern Brazil
Fecha
2023-03-29
Resumen
Southeastern Brazil comprises an important geoeconomic and populous region in South America. Consequently, it is essential to analyze and understand the precipitation profiles in this region. Among different data sources and techniques available to perform such study, the use of clustering algorithms and information from the Global Precipitation Measurement (GPM) project rises as a convenient yet few exploited alternative. Precisely, this study employs the K-Means, the Hierarchical Ward, and the Self-Organizing Maps methods to cluster the annual and seasonal precipitation data from GPM project recorded from 2001 to 2019. The adopted methods are compared in terms of quantitative measures and the number of clusters defined through a well-established rule. The results demonstrate that the annual and seasonal periods are organized according to different number of clusters. Moreover, the results allow: identify the presence of a spatially heterogeneous distribution in the study area; to conclude that the K-Means algorithm is a suitable clustering method in the context of this investigation when compared to Ward’s Hierarchical and Self-Organizing Maps methods in terms of the Calinski-Harabasz and Davies-Bouldin measures; and that the spatial precipitation distribution over Southeastern Brazil is represented by 10 clusters in annual and summer periods, 11 clusters in autumn and spring and 9 clusters in winter period.
Tema
clustering algorithms; precipitation; southeastern Brazil; GPM
Idioma
eng
ISSN
ISSN electrónico: 2395-8812; ISSN impreso: 0187-6236

Enlaces