Chorros de viento Centroamericanos, mecanismos de activación y climatología: descripción desde la escala de evento.
| dc.contributor.advisor | Hoyos Ortíz, Carlos David | spa |
| dc.contributor.advisor | Cardona Orozco, Yuley | spa |
| dc.contributor.author | Arango Jiménez, Yordan Uriel | spa |
| dc.contributor.researchgroup | OCEANICOS Grupo de Investigación en Oceanografía e Ingeniería Costera | spa |
| dc.coverage.region | Centro América | spa |
| dc.date.accessioned | 2020-05-04T20:02:58Z | spa |
| dc.date.available | 2020-05-04T20:02:58Z | spa |
| dc.date.issued | 2019-06-30 | spa |
| dc.description | ilustraciones, mapas, tablas | spa |
| dc.description.abstract | Several works about the variability of the Central American wind jets have been carried out since early twentieth century. Despite the consensus around the mechanisms that trigger them, there has not been an effort that systematically addresses the issue of its variability and activation mechanisms while taking into account both the short-term scale and the spatial delimitation of the jets. In addition to the above, the results in most cases have been based on a limited data record that prevents certainty in climatological terms. This work aims to describe the Central American wind jets in their different variability scales, as well as to explore their activation mechanisms, all from an event scale approach. A jet event catalog of almost 40 years, product of the implementation of a jet event identification algorithm, has allowed to know different subjects about them. It is shown that the Tehuantepec jet magnitude is stronger than the Papagayo and Panama jet magnitudes, opposite to the climatology of the wind according to which the Papagayo magnitude is the strongest. Papagayo jet vertical influence is more variable througout the year than the Tehuantepec and Panama ones. Changes in the horizontal influence regions of the wind jets are due to the magnitude and the direction of the jets during the different seasons of the year. In addition, cold front penetration into the tropics and westward movement of the North Atlantic Subtropical High are found to be related to different activation patterns of the wind jets. In winter season, a sequential activation of the Central American wind jets is triggered by the southward movement of cold fronts, whereas during summer the strengthening of the North Atlantic Subtropical High is related to the reinforcement of the pressure gradient through the Isthmus of Tehuantepec and over the Caribbean Sea. | eng |
| dc.description.abstract | Diversos trabajos sobre la variabilidad de los chorros de viento Centroamericanos se han llevado a cabo desde principios del siglo veinte. A pesar del consenso alrededor de los mecanismos que los desencadenan, no ha habido un esfuerzo que de manera sistemática trate el problema de su variabilidad y los mecanismos de activación mientras se toma en cuenta tanto la escala de tiempo inmediata como la delimitación espacial de los chorros. Además, los resultados en la mayoría de los casos se han basado en un limitado registro de datos el cual impide certidumbre en términos climatológicos. El objetivo de este trabajo es el de describir los chorros de viento Centroamericanos en sus diferentes escalas de variabilidad, así como explorar sus mecanismos de activación, todo desde una aproximación a la escala de evento. Un catálogo de eventos de casi 40 años, producto de la implementación de un algoritmo de identificación de eventos ha permitido conocer diferentes aspectos de ellos. Se muestra que la magnitud del chorro de Tehuantepec es más fuerte que en los casos de Papagayo y Panamá, opuesto a la climatología de la magnitud del viento según la cual Papagayo es la más fuerte. La influencia vertical del chorro de Papagayo es más variable a lo largo del año que los casos de Tehuantepec y Panama. Cambios en las regiónes de influencia horizontal de los chorros de viento son debidos a la magnitud y dirección de los chorros durante las diferentes estaciones del año. Adicionalmente, la penetración de frentes fríos hacia el tropico y el desplazamiento hacia el occidente de la alta subtropical de Azores-Bermuda son hallados estar relacionados con los diferentes patrones de activación de los chorros de viento. En la estación de invierno, una activación secuencial de los chorros de viento Centroamericanos es desencadenada por el movimiento hacia el sur de frentes fríos, mientras que durante el verano el fortalecimiento de la alta subtropical de Azores-Bermuda está relacionado con el reforzamiento del gradiente de presión a través del istmo de Tehuantepec y sobre el mar Caribe. (Texto tomado de la fuente) | spa |
| dc.description.curriculararea | Área Curricular de Medio Ambiente | spa |
| dc.description.degreelevel | Maestría | spa |
| dc.description.degreename | Magíster en Ingeniería - Recursos Hidráulicos | spa |
| dc.format.extent | xvii, 102 páginas | spa |
| dc.format.mimetype | application/pdf | spa |
| dc.identifier.instname | Universidad Nacional de Colombia | spa |
| dc.identifier.reponame | Repositorio Institucional Universidad Nacional de Colombia | spa |
| dc.identifier.repourl | https://repositorio.unal.edu.co/ | |
| dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/77473 | |
| dc.language.iso | eng | spa |
| dc.publisher | Universidad Nacional de Colombia | spa |
| dc.publisher.branch | Universidad Nacional de Colombia - Sede Medellín | spa |
| dc.publisher.department | Departamento de Geociencias y Medo Ambiente | spa |
| dc.publisher.faculty | Facultad de Minas | spa |
| dc.publisher.place | Medellín, Colombia | spa |
| dc.publisher.program | Medellín - Minas - Maestría en Ingeniería - Recursos Hidráulicos | spa |
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| dc.rights | Derechos reservados - Universidad Nacional de Colombia | spa |
| dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
| dc.rights.license | Atribución-NoComercial-SinDerivadas 4.0 Internacional | spa |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | spa |
| dc.subject.ddc | 620 - Ingeniería y operaciones afines::627 - Ingeniería hidráulica | spa |
| dc.subject.proposal | Chorros de viento Centroamericano | spa |
| dc.subject.proposal | Central American wind jets | eng |
| dc.subject.proposal | Climatología | spa |
| dc.subject.proposal | Activation mechanisms | eng |
| dc.subject.proposal | Climatology | eng |
| dc.subject.proposal | Event scale | eng |
| dc.title | Chorros de viento Centroamericanos, mecanismos de activación y climatología: descripción desde la escala de evento. | spa |
| dc.title.translated | Central American wind jets, activation mechanisms, and climatology: description from the event scale | eng |
| dc.type | Trabajo de grado - Maestría | spa |
| dc.type.coar | http://purl.org/coar/resource_type/c_bdcc | spa |
| dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa | spa |
| dc.type.content | Text | spa |
| dc.type.driver | info:eu-repo/semantics/masterThesis | spa |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | spa |
| dcterms.audience.professionaldevelopment | Investigadores | spa |
| oaire.accessrights | http://purl.org/coar/access_right/c_abf2 | spa |
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