Título
Analysis of the simulated global temperature using a simple energy balance stochastic model
Autor
LUIS EFRAIN MORELES VAZQUEZ
BENJAMIN MARTINEZ LOPEZ
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: 10.20937/ATM.2016.29.04.01
Referencia de publicación
URL/http://www.revistascca.unam.mx/atm/index.php/atm/article/view/ATM.2016.29.04.01
Materias
CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) Temperature variability - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) stochastic parameterizations - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) autoregressive process - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) steady state - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) potential function - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236]) - ([Atmósfera; Vol 29, No 4 (2016), ISSN: 0187-6236])
Resumen o descripción
This work presents a study of the response of the simulated global temperature variability to additive and multiplicative stochastic parameterizations of heat fluxes, along with a description of the long-term variability in terms of simple autoregressive processes. The Earth’s global temperature was simulated using a globally averaged energy balance climate model coupled to a thermodynamic ocean model. It was found that simple autoregressive processes explain the temperature variability in the case of additive parameterizations; whereas in the case of multiplicative parameterizations, the description of the temperature variability would involve higher order autoregressive processes, suggesting the presence of complex feedback mechanisms originated by the multiplicative forcing. Also, it was found that multiplicative parameterizations produced a rich structure that emulates closely observed climate processes. Finally, a new approach to describe the stability in the steady state of a general one-dimensional stochastic system, through its potential function, was proposed. From an analytical expression of the potential function, further insight into the description of a stochastic system was provided.
Editor
Universidad Nacional Autónoma de México. Centro de Ciencias de la Atmósfera
Fecha de publicación
octubre de 2016
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
Atmósfera; Vol 29, No 4 (2016)
ISSN: 0187-6236
Idioma
Inglés
Audiencia
Investigadores
Estudiantes
Repositorio Orígen
Repositorio Institucional del Centro de Ciencias de la Atmósfera de la UNAM
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