Results 101 to 110 of about 196,916 (228)

Monitoring and Disaster Assessment of Glacier Lake Outburst in High Mountains Asian Using Multi-Satellites and HEC-RAS: A Case of Kyagar in 2018

Remote Sensing
The glaciers in the High Mountain Asia (HMA) region are highly vulnerable to global warming, posing significant threats to downstream populations and infrastructure through glacier lake outburst floods (GLOFs).
Long Jiang, Zhi-Qiang Lin, Zhen-Bo Zhou, Hongxin Luo, Jia-Feng Zheng, Dongsheng Su, Minhong Song   +6 more
semanticscholar   +1 more source

Urban Flood Hazard Analytics: Comparing Entropy Weight Method and HEC-RAS in Himalayan Basin-Valley Cities [PDF]

E3S Web of Conferences
Rapid urbanization in the Himalayan foothills has created a critical water-risk nexus, in which basin-valley cities like Dehradun face intensifying pluvial flash floods. This study evaluates flood hazards by comparing the objective Entropy Weight Method (
Agarwal Kshitiz, Mukherjee Mahua, Adriano Bruno   +2 more
doaj   +1 more source

Application of different building representation techniques in HEC-RAS 2-D for urban flood modeling using the Toce River experimental case. [PDF]

PeerJ, 2021
Mustafa A, Szydłowski M.
europepmc   +1 more source

A comprehensive study of floodplain analysis utilising HEC-HMS, HEC-RAS, and GIS on the Kosasthalaiyar River sub-basin

Water Practice & Technology
The present study focused on the Kosasthalaiyar River basin in Chennai, Tamil Nadu, India. We analysed the 2015 peak flood and forecasted the feature data in the representative concentration pathways (RCP) 4.5 scenario for various years.
Manikanta Boddepalli, L. Pasupuleti, Bhaskara Rao Nalli   +2 more
semanticscholar   +1 more source

Inundation Mapping and Flood Frequency Analysis using HEC-RAS Hydraulic Model and EasyFit Software

Journal of Water Management Modeling
Conducting a flood frequency analysis and mapping of the inundated area in rivers are important for river flow modeling. The main purpose of this research is to estimate the peak flow, model the inundated area using HEC-RAS, and conduct an analytical ...
Lam Teluth Minywach, T. K. Lohani, A. Ayalew   +2 more
semanticscholar   +1 more source

Use of the HEC RAS model for the analysis of exceptional floods in the Ouémé basin

Proceedings of IAHS
. The Ouémé River basin extends over almost half of Benin's territory, entirely located in a humid tropical climate. This river system includes a deltaic zone (delta of the Ouémé) known for its high agricultural potential and thus subject to a socio ...
E. Amoussou, Félix T. Amoussou, A. Bossa, Domiho Japhet Kodja, Henri Sourou Totin Vodounon, C. Houndénou, Valérie Borrell Estupina, J. Paturel, Gil Mahé, Cristophe Cudennec, Michel Boko   +10 more
semanticscholar   +1 more source

Flood Mapping Using HEC-RAS and HEC-HMS: A Case Study of Upper Citarum River at Dayeuhkolot District, Bandung Regency, West Java

IOP Conference Series: Earth and Environment
Dayeuhkolot district is an area within Citarum River watershed that often experiences flood during the rainy season due to overflow discharge. This research identifies the flood area by using hydrodynamic modeling in Dayeuhkolot district.
Tasya Wijaya, Y. Wijayanti
semanticscholar   +1 more source

Optimisation of hardware setups for time-efficient HEC-RAS simulations

Cambridge Prisms: Water
The necessity for high-resolution two-dimensional (2D) simulations in flood modelling often requires excessively long simulation times. This study evaluates the impact of various hardware configurations on Hydrologic Engineering Center-River Analysis ...
R. Sabeti, T. Kjeldsen, Ioanna Stamataki, Babak Rahi   +3 more
semanticscholar   +1 more source

基于HEC-RAS和MIKE 11模型的岗头河水面线计算对比分析

Renmin Zhujiang
选取岗头河为典型案例，分别采用HEC-RAS和MIKE 11开展水面线计算研究，分析2种模型在该流域的适用性、计算精度及各参数敏感性差异。结果表明，MIKE 11计算的岗头河水面线精度更高，其纳什效率系数和平均绝对误差均优于HEC-RAS，在研究区域的适用性更强。MIKE 11对坡降减小更敏感，HEC-RAS对坡降增加更敏感；HEC-RAS对流量变化更敏感；两模型对糙率变化均不敏感。研究成果为岗头河的防洪治理工作以及类似中小型河流在水面线计算模型的选择提供参考，可为防洪规划和治理决策提供参考。
陈琰, 杨亚男, 张琼海, 张欣
doaj  

Hydraulic modeling of the Periyar River using HEC-RAS: unraveling flow dynamics.

Water Science and Technology
The Periyar River, a vital component of Kerala's ecosystem in India, serves as a lifeline supporting agriculture, hydropower generation, and ecological equilibrium.
Aneesh P. C., Roy M. Thomas
semanticscholar   +1 more source