Rainfall-runoff processes in a small oil palm catchment (8.2 ha) in Johor, Malaysia were examined. Storm hydrographs show rapid responses to rainfall with a short time to peak. The estimated initial hydrologic loss for the oil palm catchment is 5 mm. Despite the low initial loss, the catchment exhibits a high proportion of baseflow, approximately 54% of the total runoff. On an event basis, the ...

The amount of rainfall can be used to estimate the runoff that enters a reservoir. Runoff is influenced by land use, and soil type greatly affects will occur. This study discusses development hydrological model with application Hydrologic Engineering Center (HEC-HMS) in Karangmumus watershed using data has been verified field divided into zones based on permeability testing laboratory. With hel...

In terms of engineering standards, the dimensions hydraulic structures such as culverts on forest roads should have capability to drain expected maximum discharge for a 50-year return period during their lifespan (i.e., 20 years). Turkey, Talbot’s formula, empirical method, has commonly been used in determining required cross-sectional area (CSA) structures. However, practice, road engineers Tu...

The last few years have witnessed an enormous study in the area of integrated hydrological modeling with GIS application. In this research, attempt was made to critically look at the application of HEC-GeoHMS which is an extension of ArcView in HEC-HMS; an HEC package which is a new generation of software being developed for rainfall-runoff simulation. The main role of HEC-GeoHMS is to formulat...

This paper develops a framework for regional scale flood modeling that integrates NEXRAD Level III rainfall, GIS, and a hydrological model (HEC-HMS/RAS). The San Antonio River Basin (about 4000 square miles, 10,000 km2) in Central Texas, USA, is the domain of the study because it is a region subject to frequent occurrences of severe flash flooding. A major flood in the summer of 2002 is chosen ...

Abstract. Non-stop heavy rain had happened on 15th December of 2014, causing flood in Kelantan districts. Approximately 250 victims three districts were involved and relocated to six temporary relief centres. A hydrological model is designed simulate the runoff process for a catchment area. In this study, Hydrologic Engineering Center Modelling System (HEC-HMS) Rainfall-Runoff-Inundation (RRI) ...

Rivers play an essential role to humans and ecosystems, but they also burst their banks during floods, often causing extensive damage crop, property, loss of lives. This paper characterizes the 2014 flood Indus River in Pakistan using US Army Corps Engineers Hydrologic Engineering Centre Analysis System (HEC-RAS) model, integrated into a geographic information system (GIS) satellite images from...

Hydrological modeling is a widely used approach for estimating the hydrological response of basin to precipitation. Floods are among most catastrophic natural disasters in small urban watersheds, inflicting loss life, massive property destruction, and severe danger economy. As result, appropriate can be useful tool preventing mitigating such flood hazards. Despite this, flash prediction remains...

arid and semi-arid regions of the world are confronted with limited water resources. a large part of iran is arid and semi-arid and rainfall in arid and semi-arid regions is typically meager, irregular and highly variable. this irregularity affects the hydrological cycle and water resources. investigating the hydrology of the arid and semi arid regions is essential to know this environment and ...

The present study is an attempt to assess the impacts of climate change on water resources of the river basins of India which have immense importance in domestic, industrial agricultural and hydropower scenario. A distributed hydrological model developed from HEC-HMS was used on the Indian river basins using the projected daily precipitation and temperature data for the continuous daily range f...