نتایج جستجو برای: hec ras model

تعداد نتایج: 2131711  

Journal: :JUTEKS 2022

Sungai Manikin terdapat di Desa Tarus Kecamatan Kupang Tengah Kabupaten Kupang. Banjir biasa terjadi sungai Manikin.yang disebabkan karena intensitas curah hujan yang tinggi dengan durasi lama. Oleh sebab itu dalam penelitian ini dilakukan perencanaan dan perhitungan luapan banjir, analisa hidrologi menggunakan metode HSS Nakayasu, hidrolika aplikasi HEC-RAS. Berdasarkan hasil didapatkan debit ...

M. Mahbod Sh. Zand-Parsa

ABSTRACT- Measurement of irrigation water in agricultural areas is necessary, especially, in arid and semi-arid regions. Long-throated flumes have been used to measure irrigation water and are known to be inexpensive devices with high performances. In these structures, head-discharge tables are predicted theoretically with no need to calibrate. In this study, the model of LOTF ...

Journal: :Nucleation and Atmospheric Aerosols 2022

On January 2019, the biggest flood in last decade struck Gowa and Makassar. The claimed enormous number of victims caused severe damage to many buildings; this can be anticipated by Flood Routing. This study aims analyze hydrograph, propagation time, determine inundation model during downstream Bili-Bili reservoir. research was conducted through three phases: delineation watershed using ArcGis ...

2005
Junke Guo Pierre Y. Julien

Analytical approximations to Einstein integrals are proposed. The approximations represented by two fast-converging series are valid for all values of their arguments. Accordingly, the algorithm can be easily incorporated into professional software like HEC-RAS or HEC-6 with minimum computational effort. DOI: 10.1061/(ASCE)0733-9429(2004)130:12(1198) CE Database subject headings: Bed load; Susp...

ژورنال: :پژوهشنامه مدیریت حوزه آبخیز 0
محسن مسعودیان نیایش فندرسکی محمد قره گزلو

وقوع سیلاب های متعدد در رودخانه ها از یک سو و تجمع فعالیت های صنعتی، تجاری و اجتماعی در کنار رودخانه ها به علت نزدیکی به منابع آب از سوی دیگر، لزوم اعمال مدیریت مناسب در سه مرحله قبل، هنگام وقوع و بعد از سیلاب را نمایان می سازد. اهمیت و سهم مدیریت غیرسازه ای (که قابل اجرا در هر سه مرحله قبل، حین و بعد از وقوع سیل است) در کاهش خسارت ر ا می توان در سیل سال 1378 شهر نکا مشاهده نمود. در سال مذکور د...

2014
S. Chuenchooklin

This research was conducted in the Lower Ping River Basin downstream of the Bhumibol Dam and the Lower Wang River Basin in Tak Province, Thailand. Most of the tributary streams of the Ping can be considered as ungauged catchments. There are 10pumping station installation at both river banks of the Ping in Tak Province. Recently, most of them could not fully operate due to the water amount in th...

Journal: :caspian journal of enviromental sciences 0

rivers are important water resources for human life, but sometimes cause irreparable damages. the flood plains are fertile terrains which are endangered by flood. flood hazard mapping is one of the basic methods in flood fighting. in order to decline flood damages, the simulation of the hydraulic behavior of the rivers during flood occurrence is very important. in this study, areas that are flo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی ساری - دانشکده کشاورزی 1393

آبراهه های طبیعی و رودخانه ها برای ایجاد یک تعادل نسبی همواره در حال تغییر و دگرگونی هستند. تغییر در مورفولوژی رودخانه به دلیل تغییر در میزان ظرفیت انتقال رسوبات می باشد. از آنجایی که رودخانه یک سیستم پویاست، همواره ظرفیت انتقال رسوب آن به دلیل عوامل مختلف در حال افزایش و کاهش است که این امر، فرسایش و رسوب گذاری در مسیر رودخانه را به همراه دارد. شناخت پدیده ها و آثار ناشی از تغییرات آن بر شرایط...

Journal: :Hydrology 2022

Rainfall-runoff simulation is vital for planning and controlling flood control events. Hydrology modeling using Hydrological Engineering Center—Hydrologic Modeling System (HEC-HMS) accepted globally event-based or continuous of the rainfall-runoff operation. Similarly, machine learning a fast-growing discipline that offers numerous alternatives suitable hydrology research’s high demands limitat...

Journal: :Journal of Environmental Management 2021

There is an immediate need to use available modeling tools quantify environmental flows targets where changing climate and human activity has altered hydroecologically important streamflow regimes. A model performance assessment was undertaken using observed data collected from five nested gauging sites in a mixed land watershed of the central US. An integrated approach used couple The Soil Wat...

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