Banca de DEFESA: FABRICIO RIBEIRO GARCIA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : FABRICIO RIBEIRO GARCIA
DATA : 20/04/2021
HORA: 09:00
LOCAL: meet.google.com/aiw-djgz-zrg
TÍTULO:

COMPARISON OF DIGITAL TERRAIN MODELS TO HYDRODYNAMIC MODELING APPLIED ON IDENTIFICATION OF FLOOD AREAS


PALAVRAS-CHAVES:

 DIGITAL TERRAIN MODELS, HYDRODYNAMIC MODELING APPLIED, FLOOD AREAS


PÁGINAS: 100
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
SUBÁREA: Engenharia Hidráulica
ESPECIALIDADE: Hidráulica
RESUMO:
The intense urban growth has a considerable impact on the increase of soil waterproofing, consequently changing the natural conditions of hydrological cycle, thus increasing the amount of runoff, and thus favoring the occurrences of floods and floods. Understanding this dynamic is fundamental for a good management of urban space, in this sense, the process of hydrological and hydraulic simulation becomes a very important tool to seek answers behavior of rain events. The Geographic Information Systems brought about a considerable improvement for application of the modeling processes, providing important information about terrain characteristics, from  digital terrain models (DTM). There are several sources of existing DTMs, examples such as Shuttle Radar Topography Mission (SRTM), Advanced Land Observing Satellite (ALOS), Light Detecting And Ranging (LiDAR), among others. The quality and usability of results of hydrological and hydraulic simulations models are closely associated with accuracy and availability of topographic data. In this way, this work sought to evaluate the use of hydrodynamic modeling subsidized by two sources of digital terrain model - LiDARe SRTM - applied to the identification of floods and floods in the Cobre hydrographic basin in Salvador / Ba, resulting from extreme precipitation events with payback periods of 10, 25 and 50 years. To fulfill the proposal, it was used the coupling of rain-flow transformation models, through hydrological modeling using Hydrological Engineering Center-Hydrologic Modeling System (HEC-HMS), while for hydrodynamic modeling using Hydrological Engineering Center model - River Analysis System (HEC-RAS). In this research, extension of  affected area and height of water depth were compared. For the validation of proposed methodology, the correlation analysis of modeling results was carried out with data from the records of occurrences of civil defense of Salvador. The results from the SRTM model showed that the study area is subject to flooding at some points, as well as flooding. The maximum results found were for sub-basin 1 with an affected area of 159647.44 m2 and maximum propagation speed of 3.73 m / s and maximum height of water level of 8.14 m for the sub-basin. The results indicate a correlation with civil defense records when comparing DTMs.
 


MEMBROS DA BANCA:
Presidente - 2466669 - MAURO JOSE ALIXANDRINI JUNIOR
Interno(a) - 2097530 - JULIO CESAR PEDRASSOLI
Externo(a) à Instituição - FRANCISTO HENRRIQUE DE OLIVEIRA - EDESC
Notícia cadastrada em: 19/04/2021 14:43
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