It has become necessary to estimate the quantities of runoff by knowing amount rainfall calculate required water storage in reservoirs and determine likelihood flooding. The present study deals with development a hydrological model named Hydrologic Engineering Center (HEC-HMS), which uses Digital Elevation Models (DEM). This was used means Geospatial Modeling Extension (HEC-GeoHMS) Geographical...

Application geographic information systems (GISs) and remote sensing integration to provide determination of runoff from watershed has performed increasingly attention in recent years. In this study, Natural Resources Conservation Service Curve Number (NRCS-CN) method was used to estimate Curve number according to the factors of hydrological soil group, land use, land treatment, drainage basin ...

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...

This article presents a raster-based Geographic Information Systems (GIS) tool called CN-Idris that outputs runoff estimates from land use/land cover and hydrologic soil group maps based on the Natural Resources Conservation Service Curve Number method. The tool enables the user to select among three antecedent moisture conditions and two values of the initial abstraction (Ia) parameter, and it...

Rainfall runoff modeling is one of the most complex hydrological due to involvement different watershed physical parameters. It essential for analysis response towards received precipitation under influence variables. As it a replica response, Rainfall-Runoff evaluate general characteristics total surface at catchment’s outlet. The main objective this study was prediction rainfall using Hydrolo...

• MSME estimates of direct runoff outperformed the SCS-CN on poorly-drained catchments. Antecedent moisture condition lowlands was defined by initial water table level. Soil saturation coefficient divided into subsurface and surface runoff. A threshold event rainfall depth found for generation. has potential to assess land use changes climate variability. In this study, we calibrated tested Con...

Forest fire is a common concern in Mediterranean watersheds. Fire-induced canopy mortality may cause the degradation of chemical–physical properties soil and influence hydrological processes within across However, prediction pedological effect forest fires with heterogenous severities entire watersheds remains difficult task. A large occurred 2017 northern Italy providing opportunity to test an...

Flash floods are water-related disasters that cause damage to properties, buildings, and infrastructures in the flow path. often occur within a short period of time following intense rainfall high, mountainous area northern Thailand. Therefore, purpose this study is generate flash flood susceptibility map using watershed morphometric parameters hydrological approaches. In study, Pai River basin...