Version 1
: Received: 26 April 2024 / Approved: 26 April 2024 / Online: 26 April 2024 (14:10:21 CEST)
How to cite:
Crenganiș, L.M.; Pricop, C.I.; Diac, M. Integrating ArcGIS and HEC-RAS for Flood Hazard Management: A Case Study of Ungheni, Iasi County, Romania. Preprints2024, 2024041783. https://doi.org/10.20944/preprints202404.1783.v1
Crenganiș, L.M.; Pricop, C.I.; Diac, M. Integrating ArcGIS and HEC-RAS for Flood Hazard Management: A Case Study of Ungheni, Iasi County, Romania. Preprints 2024, 2024041783. https://doi.org/10.20944/preprints202404.1783.v1
Crenganiș, L.M.; Pricop, C.I.; Diac, M. Integrating ArcGIS and HEC-RAS for Flood Hazard Management: A Case Study of Ungheni, Iasi County, Romania. Preprints2024, 2024041783. https://doi.org/10.20944/preprints202404.1783.v1
APA Style
Crenganiș, L.M., Pricop, C.I., & Diac, M. (2024). Integrating ArcGIS and HEC-RAS for Flood Hazard Management: A Case Study of Ungheni, Iasi County, Romania. Preprints. https://doi.org/10.20944/preprints202404.1783.v1
Chicago/Turabian Style
Crenganiș, L.M., Claudiu Ionuţ Pricop and Maximilian Diac. 2024 "Integrating ArcGIS and HEC-RAS for Flood Hazard Management: A Case Study of Ungheni, Iasi County, Romania" Preprints. https://doi.org/10.20944/preprints202404.1783.v1
Abstract
Hydrodynamic modeling and hazard mapping are essential tools for urban flood mitigation and spatial planning. Leveraging software like HEC-RAS (Hydrologic Engineering Center - River Analysis System) and ArcGIS, this study aimed to map flood-prone areas along the Jijia River in the Ungheni administrative unit of Iasi County.
Human-induced environmental changes and global climate shifts have heightened flood risks worldwide, particularly in urbanized areas. Hydrological and hydraulic modeling anticipate and assess flood events, while hydrodynamic modeling accurately simulates flow propagation, in-forming flood extent, timing, and volume. Flood hazard maps offer essential insights into flooded areas, water depths, and velocities, assisting in risk assessment and mitigation strategies. Through the use of different scenarios, river modeling aims to accurately replicate real-world conditions.
This study focuses on Ungheni commune in Iasi County, Romania, situated along the Prut River's eastern bank. Utilizing a combination of fixed-grid and irregular mesh elements in modeling al-lows for fine-tuning of flow details and optimization of simulation times.
Model accuracy, particularly regarding peak river levels, hinges on hydrograph duration. While a 30-minute error is typically accepted, greater tolerances may apply to river basins with longer response times. The extraction and processing of model results, including maximum water depths, flood extents, and velocity maps, are facilitated by ArcGIS, providing valuable data for effective flood management strategies.
Keywords
river modeling, HEC-RAS 2D, ArcGIS, floodplain
Subject
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
