Flood peligrosity analysis over a flat area affected by tides. Case study: General Daniel Cerri town, Buenos Aires, Argentina

General Daniel Cerri, on the shores of the Bahía Blanca estuary, suffers from pluvial floods and extraordinary wind tides. Two basins drain a short distance from the town center and in turn the tide drowns the drains. A ring of terraced road and railway works modifies the natural runoff network, gen...

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Autores principales: Fernández, Sandra N., Pérez, Daniel Enrique
Formato: Artículo revista
Lenguaje:Español
Publicado: Instituto de Geografía (IGUNNE) 2024
Materias:
HEC-RAS
flooding peligrosity
General Daniel Cerri
wind tides
Peligrosidad por inundación
mareas eólicas
Acceso en línea:https://revistas.unne.edu.ar/index.php/geo/article/view/7205
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-7205
record_format ojs
spelling I48-R154-article-72052024-10-25T22:17:59Z Flood peligrosity analysis over a flat area affected by tides. Case study: General Daniel Cerri town, Buenos Aires, Argentina Análisis de la peligrosidad por inundación en una zona de planicie afectada por mareas. Caso de estudio: localidad de General Daniel Cerri, Buenos Aires, Argentina Fernández, Sandra N. Pérez, Daniel Enrique HEC-RAS flooding peligrosity General Daniel Cerri wind tides HEC-RAS Peligrosidad por inundación General Daniel Cerri mareas eólicas General Daniel Cerri, on the shores of the Bahía Blanca estuary, suffers from pluvial floods and extraordinary wind tides. Two basins drain a short distance from the town center and in turn the tide drowns the drains. A ring of terraced road and railway works modifies the natural runoff network, generating protection effects, but at the same time delaying evacuation due to tides. Field, satellite and chart data were collected to produce a terrain model. Boundary conditions were adopted and the terrain roughness was evaluated. Floods corresponding to storms of a certain recurrence that flow through the structures were simulated, incorporating the effect of the tide, to define the degree of drowning. Depending on the distances and speeds obtained in the simulation, the affected urban areas are delimited and the danger was defined based on international standards. The results of the simulations made it possible to describe the mechanics of the flood in the area and evaluate the degree of danger in the affected areas based on the values ​​of depth and flood speed simulated in each case. There are non-negligible differences between simulated flooded areas with and without tides. The results were put on maps and reveal the flood zones for the different recurrences, as well as the degree of danger. General Daniel Cerri, a orillas del estuario de Bahía Blanca sufre inundaciones de tipo pluvial y por mareas eólicas extraordinarias. Dos cuencas desaguan a poca distancia del casco urbano y a su vez la marea ahoga los drenajes. Un anillo de obras viales y ferroviarias terraplenadas modifica la red de escurrimiento natural, generándose efectos de protección, pero a la vez retardando la evacuación debido a las mareas. Se recopilaron datos de campo, satelitales y cartas para producir un modelo de terreno. Se adoptaron condiciones de borde y se evaluó la rugosidad del terreno. Mediante el software HEC-RAS, se simularon crecidas correspondientes a tormentas de determinada recurrencia que escurren a través de las estructuras, incorporando el efecto que la marea, para definir el grado de ahogamiento. En función de los tirantes y velocidades obtenidos en la simulación se delimitaron las áreas urbanas afectadas y se definió la peligrosidad en función de estándares internacionales. Los resultados de las simulaciones permitieron describir la mecánica de la inundación en la zona y evaluar el grado de peligrosidad en las áreas afectadas basados en los valores de tirante y velocidad de inundación simulados en cada caso. Los resultados fueron volcados en mapas y develaron las zonas de inundación para las distintas recurrencias, así como el grado de peligrosidad. Existen diferencias no despreciables entre áreas inundadas simuladas con y sin mareas. Instituto de Geografía (IGUNNE) 2024-08-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/xml https://revistas.unne.edu.ar/index.php/geo/article/view/7205 10.30972/geo.20407205 Geográfica digital; Vol. 20 Núm. 40 (2023): Dossier: "Perspectivas de la movilidad cotidiana en el marco de los ODS" y Artículos libres; 91-110 1668-5180 spa https://revistas.unne.edu.ar/index.php/geo/article/view/7205/7148 https://revistas.unne.edu.ar/index.php/geo/article/view/7205/7165 http://creativecommons.org/licenses/by-nc/4.0
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
topic HEC-RAS
flooding peligrosity
General Daniel Cerri
wind tides
HEC-RAS
Peligrosidad por inundación
General Daniel Cerri
mareas eólicas
spellingShingle HEC-RAS
flooding peligrosity
General Daniel Cerri
wind tides
HEC-RAS
Peligrosidad por inundación
General Daniel Cerri
mareas eólicas
Fernández, Sandra N.
Pérez, Daniel Enrique
Flood peligrosity analysis over a flat area affected by tides. Case study: General Daniel Cerri town, Buenos Aires, Argentina
topic_facet HEC-RAS
flooding peligrosity
General Daniel Cerri
wind tides
HEC-RAS
Peligrosidad por inundación
General Daniel Cerri
mareas eólicas
author Fernández, Sandra N.
Pérez, Daniel Enrique
author_facet Fernández, Sandra N.
Pérez, Daniel Enrique
author_sort Fernández, Sandra N.
title Flood peligrosity analysis over a flat area affected by tides. Case study: General Daniel Cerri town, Buenos Aires, Argentina
title_short Flood peligrosity analysis over a flat area affected by tides. Case study: General Daniel Cerri town, Buenos Aires, Argentina
title_full Flood peligrosity analysis over a flat area affected by tides. Case study: General Daniel Cerri town, Buenos Aires, Argentina
title_fullStr Flood peligrosity analysis over a flat area affected by tides. Case study: General Daniel Cerri town, Buenos Aires, Argentina
title_full_unstemmed Flood peligrosity analysis over a flat area affected by tides. Case study: General Daniel Cerri town, Buenos Aires, Argentina
title_sort flood peligrosity analysis over a flat area affected by tides. case study: general daniel cerri town, buenos aires, argentina
description General Daniel Cerri, on the shores of the Bahía Blanca estuary, suffers from pluvial floods and extraordinary wind tides. Two basins drain a short distance from the town center and in turn the tide drowns the drains. A ring of terraced road and railway works modifies the natural runoff network, generating protection effects, but at the same time delaying evacuation due to tides. Field, satellite and chart data were collected to produce a terrain model. Boundary conditions were adopted and the terrain roughness was evaluated. Floods corresponding to storms of a certain recurrence that flow through the structures were simulated, incorporating the effect of the tide, to define the degree of drowning. Depending on the distances and speeds obtained in the simulation, the affected urban areas are delimited and the danger was defined based on international standards. The results of the simulations made it possible to describe the mechanics of the flood in the area and evaluate the degree of danger in the affected areas based on the values ​​of depth and flood speed simulated in each case. There are non-negligible differences between simulated flooded areas with and without tides. The results were put on maps and reveal the flood zones for the different recurrences, as well as the degree of danger.
publisher Instituto de Geografía (IGUNNE)
publishDate 2024
url https://revistas.unne.edu.ar/index.php/geo/article/view/7205
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AT fernandezsandran analisisdelapeligrosidadporinundacionenunazonadeplanicieafectadapormareascasodeestudiolocalidaddegeneraldanielcerribuenosairesargentina
AT perezdanielenrique analisisdelapeligrosidadporinundacionenunazonadeplanicieafectadapormareascasodeestudiolocalidaddegeneraldanielcerribuenosairesargentina
first_indexed 2024-08-21T22:36:41Z
last_indexed 2025-05-17T05:10:47Z
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