Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia.
Ilustraciones, mapas
- Autores:
-
Bonilla Ovallos, Carlos Andrés
- Tipo de recurso:
- Fecha de publicación:
- 2020
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/79704
- Palabra clave:
- 550 - Ciencias de la tierra::551 - Geología, hidrología, meteorología
620 - Ingeniería y operaciones afines::627 - Ingeniería hidráulica
Precipitación atmosférica
Retrotrayectorias
Nubes
Patrones anómalos de circulación
Delimitación de nubes
Back-trajectories
Atmospheric patterns
Extreme rainfall events
- Rights
- openAccess
- License
- Atribución-NoComercial-SinDerivadas 4.0 Internacional
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UNACIONAL2 |
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Universidad Nacional de Colombia |
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| dc.title.spa.fl_str_mv |
Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia. |
| dc.title.translated.eng.fl_str_mv |
Atmospheric patterns leading to extreme daily precipitation events in Antioquia. |
| title |
Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia. |
| spellingShingle |
Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia. 550 - Ciencias de la tierra::551 - Geología, hidrología, meteorología 620 - Ingeniería y operaciones afines::627 - Ingeniería hidráulica Precipitación atmosférica Retrotrayectorias Nubes Patrones anómalos de circulación Delimitación de nubes Back-trajectories Atmospheric patterns Extreme rainfall events |
| title_short |
Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia. |
| title_full |
Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia. |
| title_fullStr |
Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia. |
| title_full_unstemmed |
Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia. |
| title_sort |
Patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia. |
| dc.creator.fl_str_mv |
Bonilla Ovallos, Carlos Andrés |
| dc.contributor.advisor.none.fl_str_mv |
Hoyos Ortiz, Carlos David |
| dc.contributor.author.none.fl_str_mv |
Bonilla Ovallos, Carlos Andrés |
| dc.subject.ddc.spa.fl_str_mv |
550 - Ciencias de la tierra::551 - Geología, hidrología, meteorología 620 - Ingeniería y operaciones afines::627 - Ingeniería hidráulica |
| topic |
550 - Ciencias de la tierra::551 - Geología, hidrología, meteorología 620 - Ingeniería y operaciones afines::627 - Ingeniería hidráulica Precipitación atmosférica Retrotrayectorias Nubes Patrones anómalos de circulación Delimitación de nubes Back-trajectories Atmospheric patterns Extreme rainfall events |
| dc.subject.lemb.none.fl_str_mv |
Precipitación atmosférica |
| dc.subject.proposal.spa.fl_str_mv |
Retrotrayectorias Nubes Patrones anómalos de circulación Delimitación de nubes |
| dc.subject.proposal.eng.fl_str_mv |
Back-trajectories Atmospheric patterns Extreme rainfall events |
| description |
Ilustraciones, mapas |
| publishDate |
2020 |
| dc.date.issued.none.fl_str_mv |
2020 |
| dc.date.accessioned.none.fl_str_mv |
2021-06-24T15:48:56Z |
| dc.date.available.none.fl_str_mv |
2021-06-24T15:48:56Z |
| dc.type.spa.fl_str_mv |
Trabajo de grado - Maestría |
| dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/masterThesis |
| dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/acceptedVersion |
| dc.type.content.spa.fl_str_mv |
Text |
| dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/TM |
| status_str |
acceptedVersion |
| dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/79704 |
| dc.identifier.instname.spa.fl_str_mv |
Universidad Nacional de Colombia |
| dc.identifier.reponame.spa.fl_str_mv |
Repositorio Institucional Universidad Nacional de Colombia |
| dc.identifier.repourl.spa.fl_str_mv |
https://repositorio.unal.edu.co/ |
| url |
https://repositorio.unal.edu.co/handle/unal/79704 https://repositorio.unal.edu.co/ |
| identifier_str_mv |
Universidad Nacional de Colombia Repositorio Institucional Universidad Nacional de Colombia |
| dc.relation.references.spa.fl_str_mv |
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Atribución-NoComercial-SinDerivadas 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Hoyos Ortiz, Carlos David27686cec87756851bf3b2f6ce68e0839600Bonilla Ovallos, Carlos Andrés8f4db9fbf95d99a18fada756d7c8b9b92021-06-24T15:48:56Z2021-06-24T15:48:56Z2020https://repositorio.unal.edu.co/handle/unal/79704Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/Ilustraciones, mapasCon el propósito de fortalecer las capacidades de monitoreo y de pronóstico meteorológico en Antioquia, y con ello las capacidades de gestión de riesgo en este departamento colombiano, se definió como objetivo principal del presente trabajo, la identificación y el análisis de los patrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria. En primer lugar y con base en un ejercicio de regionalización, se identificaron 2 regiones que comprenden la mayor parte del territorio antioqueño, y en las cuales, el comportamiento de la precipitación es diferente. Para estas subregiones del departamento se identificaron eventos extremos de precipitación diaria y se caracterizaron los ambientes atmosféricos asociados a su génesis a través de dos aproximaciones metodológicas: un análisis de retrotrayectorias y de humedad, y un análisis de anomalı́as de circulación en el que se evaluaron, para distintos niveles de presión, los campos de altura geopotencial, vientos horizontales, humedad específica y potencial de velocidad. Adicionalmente, y con el fin de complementar lo antes expuesto mediante la mejora de las capacidades de monitoreo y diagnóstico meteorológico en tiempo real, se exploraron las potencialidades de la información del generador avanzado de imágenes (ABI) del satélite GOES-16 en lo que respecta a la delimitación de las nubes que precipitan y la alerta temprana de precipitaciones convectivas. Los resultados del análisis de retrotrayectorias sugieren que los eventos extremos de precipitación diaria de la mayoría de los meses del año están relacionados con un ambiente de alta convergencia de humedad, cuyos mayores aportes provienen del Pacífico y del Caribe. En cuanto al análisis de compuestos de anomalı́as, los resultados evidencian que pese a que existe una alta variabilidad en cuanto a los patrones generales de anomalı́as analizados, existen elementos comunes que pueden usarse como indicadores del favorecimiento de las condiciones para la ocurrencia de tales eventos extremos. Dentro de estos factores comunes, se destacan: el desarrollo de anomalı́as negativas de altura geopotencial sobre el nor-occidente de Sur América, que inducen el giro ciclónico de los vientos alisios del noreste; la existencia de anomalı́as positivas de viento zonal sobre el Pacifico y de anomalı́as negativas de viento zonal y meridional sobre el Caribe, que favorecen el flujo húmedo hacia la región; la presencia de anomalı́as positivas de humedad específica sobre el Caribe, especialmente durante los meses de DEF; y la configuración de un sistema acoplado de convergencia/divergencia en bajo/alto nivel en el norte de Sur América, el cual favorece la convección profunda sobre la región. Por otro lado, los resultados demuestran que el uso de la información del sensor ABI, a bordo del satélite GOES-16, es una excelente opción para el mejoramiento de las capacidades de gestión de riesgo de desastres en Antioquia, en cuanto permite capturar eficientemente los procesos más importantes dentro del crecimiento de cúmulos, permitiendo ası́ advertir tempranamente la iniciación convectiva; y porque permiten, con base en las propiedades de las nubes, delimitar aceptablemente bien las nubes que precipitan y ası́ constituir una herramienta útil para complementar las estrategias de monitoreo regional. (tomado de la fuente)Aiming to strengthen the monitoring and meteorological forecasting capacities in Antioquia, identifying and characterizing the atmospheric patterns related to the occurrence of daily extreme rainfall events was defined as the main objective of this work. Firstly, using clustering analysis were identified two sub-regions in Antioquia with different precipitation patterns. For these sub-regions of the department, daily extreme rainfall events were identified, and the atmospheric states related with their genesis and development are characterized through two methodological approaches: (1) a back trajectory analysis together with specific humidity, and (2) a composites analysis based on standardized anomalies of geopotential height, horizontal winds, specific humidity and, velocity potential, at several pressure levels. To complement those mentioned above, the potential capabilities of satellite information to monitoring and diagnose weather in real-time were explored. Specifically, data from Advanced Baseline Imager (ABI, onboard of GOES-16) is evaluated regarding the precipitating clouds’ delimitation and the early warning of convective initiation features. Results from the back-trajectory analysis suggest that the extreme daily precipitation events of most months of the year are related to a high environment of humidity convergence, whose significant contributions coming from the Pacific Ocean and the Caribbean Sea. According to the analysis of composite anomalies, there are common elements that can be used as indicators of favoring conditions for the occurrence of such extreme events in the department, though the patterns of anomalies analyzed show high variability.Among these common factors, the following highlighted: the development of negative anomalies of geopotential height over the north-west of South America, which induces the cyclonic turn of the northeast trade winds; the existence of positive zonal wind anomalies over the Pacific; the existence of negative zonal and southerly wind anomalies over the Caribbean; the presence of positive specific humidity anomalies over the Caribbean; and the existence of a coupled system of low-level convergence and height divergence over northern South America, which favors deep convection over the region. On the other hand, the results also show that the ABI data is an excellent tool to capture the more essential processes within cumulus growth (allowing early warning of convective initiation), efficiently delimiting precipitation clouds and, complementing regional monitoring strategies (Tomado de la fuente)MaestríaMagíster en Ingeniería - Recursos HidráulicosMeteorología tropical134 páginasapplication/pdfUniversidad Nacional de ColombiaMedellín - Minas - Maestría en Ingeniería - Recursos HidráulicosDepartamento de Geociencias y Medo AmbienteFacultad de MinasMedellín, ColombiaUniversidad Nacional de Colombia - Sede Medellín550 - Ciencias de la tierra::551 - Geología, hidrología, meteorología620 - Ingeniería y operaciones afines::627 - Ingeniería hidráulicaPrecipitación atmosféricaRetrotrayectoriasNubesPatrones anómalos de circulaciónDelimitación de nubesBack-trajectoriesAtmospheric patternsExtreme rainfall eventsPatrones atmosféricos asociados a la ocurrencia de eventos extremos de precipitación diaria en Antioquia.Atmospheric patterns leading to extreme daily precipitation events in Antioquia.Trabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMAntioquia (Colombia)Álvarez-Villa, O. 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