Results 1 to 10 of about 60,497 (208)

Comparing HEC-HMS and HEC-RAS for Continuous, Rain-on-Grid, Urban Watershed Modeling

Hydrology
The application of two-dimensional (2D) hydrologic and hydraulic modeling tools is increasing for overland flow simulation, as they represent spatial changes in depth, velocity, and flow conditions more accurately.
Ashmita Poudel, Jose G. Vasconcelos
doaj   +2 more sources

Application of HEC-HMS for flood forecasting in Misai and Wan'an catchments in China [PDF]

Water Science and Engineering, 2010
The hydrologic model HEC-HMS (Hydrologic Engineering Center, Hydrologic Modeling System), used in combination with the Geospatial Hydrologic Modeling Extension, HEC-GeoHMS, is not a site-specific hydrologic model. Although China has seen the applications
James Oloche Oleyiblo, Zhi-jia Li
doaj   +2 more sources

FLOOD MODELLING OF RIAM KIWA WATERSHED USING HEC-HMS

Jurnal Arsip Rekayasa Sipil dan Perencanaan, 2023
At the end of 2021 to early 2022 several areas in Banjar Regency were flooded. This incident had a major impact on the surrounding area and became a national concern. One of the causes of the disaster was high-intensity rainfall which caused the water in the Riam Kiwa River to overflow. HEC-HMS software was used to simulate the designed flood discharge.
Muhammad Fajar Hidayatullah, Noordiah Helda   +1 more
openaire   +1 more source

On the Clark Unit Hydrograph Model of HEC-HMS

Periodica Polytechnica Civil Engineering, 2017
A mathematically correct form of the linear storage element’s routing equation is specified requiring only a slight modification of the existing HEC-HMS routine. The new formulation, unlike the current version in use, is unconditionally stable as long as the time step and the storage coefficient values are trivially specified as positive numbers.
openaire   +2 more sources

Analisis Banjir pada Polder Sunter Timur II dengan Menggunakan HEC-RAS (Ras Mapper)

Teras Jurnal: Jurnal Teknik Sipil
Abstrak Banjir di Jakarta menimbulkan kerusakan dan kerugian, menjadi latar belakang dilakukannya analisis banjir di Polder Sunter Timur II yang disajikan dalam makalah ini.
Agis Setiyowati, Evi Anggraheni
doaj   +1 more source

Coupling WRF with HEC-HMS and WRF-Hydro for flood forecasting in typical mountainous catchments of northern China [PDF]

Natural Hazards and Earth System Sciences
The atmospheric–hydrological coupling systems are essential to flood forecasting because they allow for more improved and comprehensive prediction of flood events with an extended forecast lead time.
S. U. Jam-Jalloh, J. Liu, Y. Wang, Y. Liu   +3 more
doaj   +1 more source

Impacts of retention basins on downstream flood peak attenuation in the Odaw river basin, Ghana

Journal of Hydrology: Regional Studies, 2023
Study region: Odaw River Basin (ORB) in Ghana Study focus: We simulated and examined the impacts of retention basin as a hydraulic structure in attenuating the flood peaks downstream of the ORB with a coupled HEC-HMS and HEC-RAS models for different ...
Johnmark Nyame Acheampong, Charles Gyamfi, Emmanuel Arthur   +2 more
doaj   +1 more source

Effects of DEM source and resolution on the HEC-HMS hydrological simulation

Shui kexue jinzhan, 2015
Hydrological simulations are affected by the parameters derived from DEM,which describes the watershed features. Xitiaoxi River basin was selected to simulate two runoff processes in Jun and Aug to Sep 2011 using the HEC-HMS model with ASTER 30 m DEM ...
GAO Yufang, CHEN Yaodeng, JIANG Yifang, PENG Tao   +3 more
doaj   +1 more source

The influence of spatial discretization on HEC-HMS modelling: a case study [PDF]

International Journal of Hydrology, 2019
The spatial discretization of a watershed can directly influence the derived outputs of hydrological models Conclusive guidelines regarding the proper level of spatial discretization have not yet been established due to the great diversity of models calibrated parameters and topographic and geospatial characteristics of study areas The objective of ...
Barbosa JHS, Fernandes ALT, Lima AD, Assis LC   +3 more
openaire   +1 more source

Evaluation of Catchment area delineation Methods: Comparison of TOPAZ on WMS with HEC-HMS 4.12

Geosfera Indonesia
The delineation of catchment areas plays a crucial role in hydrological modeling, influencing water resource management and flood analysis. However, differences in Digital Elevation Model (DEM) resolutions and processing methods can significantly affect ...
Yunita Ayu Setiyowati, Donny Harisuseno, M. Amar Sajali   +2 more
doaj   +1 more source