Characterization of the Atmospheric Dynamics in Riobamba City Using the Chaos Theory

Velasteguí, Arquímides Xavier Haro; Limaico, Cecilia; Llosas, Yolanda

doi:10.4236/acs.2015.54036

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…This study mainly uses comparative analysis, differential analysis and the basic equations of atmospheric motion to analyze the data (Yun, 2021;Ibragimov et al, 2021;Haro et al, 2015). These methods will be introduced as follow.…”

Section: Methodsmentioning

confidence: 99%

Analysis of Cold Weather Process in the North China during October 20 to 23, 2020

Wang¹

2022

GEP

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To help the forecast of cold weather activity, the cold weather process in the North China from October 20 to 23, 2020 was analyzed by the methods of utilizing statistical analysis, such as composite, differential analysis and correlation analysis, and by using the data from the National Meteorological Information Center of China, the National Climate Center of China and the NECP data from NOAA Physical Sciences Laboratory. The results show that: 1) the cold air started from Siberia, took the east path to move southward, and finally affected most part of North China. 2) Almost no obvious weather occurred during the process. 3) The cold air mainly moved along with the form and development of the trough and ended when the trough got weaken.

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Section: Methodsmentioning

confidence: 99%

Analysis of Cold Weather Process in the North China during October 20 to 23, 2020

Wang¹

2022

GEP

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“…According to Takens' embedding theorem it is possible to reconstruct phase space from a single time series so as to characterize a non-linear dynamical system through time delayed variables [12]. The embedding theorems developed by Takens and then Sauer et al states that "if the sequence (x N ) does indeed consist Engineering of scalar measurements of the state of a dynamical system, then under certain genericity assumptions, the time delay embedding provides a one-to-one image of the original set (X), provided the embedding dimension (m) is large enough" [13]. A time-delayed variable constitute an adequate embedding, provided the measured variable is smooth and couples to all other variables [10].…”

Section: Phase Space Representationmentioning

confidence: 99%

Analysis of Flow Dynamics in the High-Flux Gas-Solid Riser Using Trajectory Distances across Attractors Reconstructed from Solid Concentration Signals

Jeremiah¹,

Manyele²,

Temu³

et al. 2018

ENG

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The study of the entrance and wall dynamics of a high-flux gas-solid riser was conducted using trajectory distances of the reconstructed attractors from solid concentration signals collected from a 76 mm internal diameters and 10 m high riser of a circulating fluidized bed (CFB) system. The riser was operated at 4.0 to 10.0 m/s gas velocity and 50 to 550 kg/m 2 s solids flux. Spent fluid catalytic cracking (FCC) catalyst particles with 67 μm mean diameter and density of 1500 kg/m 3 together with 70% to 80% humid air was used. Solid concentration data were analyzed using codes prepared in FORTRAN 2008 to get trajectories of the reconstructed attractors and their distances apart. Trajectory distances were found to increase from the centre towards the wall indicating the expansion of the attractor. The probability density function (PDF) of the trajectory distances changes from single peak at the centre to multiple peaked profiles in the wall region. Multiple peaked profiles indicate multifractal flow behaviours.

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“…La Ciudad de Riobamba está ubicada en el centro geográfico del país, en la cordillera de los Andes, a 2750 msnm en el centro de la hoya de Chambo, la población según el INEC es de 225.74 habitantes, las actividades económicas más importantes por su situación geográfica, siempre han sido la agricultura y ganadería. Sin embargo, ahora no son las únicas, ya que se debe destacar otras relacionadas al comercio, turismo, educación y ciertas actividades artesanales e industriales [2],. Con este referente y en base a los resultados obtenidos de la investigación se manifiesta que las emisiones de los gases a la atmosfera se deben principalmente a las fuentes móviles y fenómenos naturales como la erosión de los suelos y la erupción del Volcán [3].…”

Section: Introductionunclassified

Rediseño de la red de monitoreo atmosférico para control y vigilancia de la calidad del aire en la ciudad de Riobamba

Cahueñas¹,

Telenchana²

2019

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Se rediseña la red de monitoreo de calidad del aire para la ciudad de Riobamba, en función de los resultados obtenidos mediante monitoreos de contaminantes con sensores pasivos, sensores activos, caracterización de emisiones y modelos de difusión de contaminantes, se propone una red de monitoreo de contaminantes atmosféricos para el control y vigilancia de la calidad del aire, que cubre un mayor territorio, incluyendo nuevas estaciones de monitoreo, con la finalidad de ajustar y mejorar los resultados que actualmente tiene la red de monitoreo de sensores pasivos que funciona en el cantón.

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Characterization of the Atmospheric Dynamics in Riobamba City Using the Chaos Theory

Cited by 3 publications

References 13 publications

Analysis of Cold Weather Process in the North China during October 20 to 23, 2020

Analysis of Cold Weather Process in the North China during October 20 to 23, 2020

Analysis of Flow Dynamics in the High-Flux Gas-Solid Riser Using Trajectory Distances across Attractors Reconstructed from Solid Concentration Signals

Rediseño de la red de monitoreo atmosférico para control y vigilancia de la calidad del aire en la ciudad de Riobamba

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