Hydrograph recession constants are required in rainfall-runoff models, base flow augmentation studies, geohydrologic investigations and in regional low-flow studies. The recession portion of a streamflow hydrograph is shown to be either an autoregressive process or an integrated moving average process, depending upon the structure of the assumed model errors. Six different estimators of the bas...

The dam-break connected flood hydrograph properties primarily depend on the breach geometry and time for to fully develop. Therefore, prediction of dam’s is essential in studies. To understand impact parameters peak hydrograph, five most common methods are implemented presented study estimate hydrographs using 2-dimensional HEC-RAS model. Ürkmez Dam chosen as case due presence a residential set...

Reservoir routing is often conducted with the stage-storage curve of the storage facility. Often at a planning stage, little hydraulic information about the storage facility is known yet. Therefore, a performance curve such as the storage-outflow curve needs to be developed from hydrologic information without detail basin geometry and outlet hydraulics. This paper presents a hydrology based pro...

Due to the immense damage caused by dam failure, especially dams constructed near large cities, it is necessary to consider the breaking phenomena as well as studying and designing different parts of the dam. For this purpose, the hydrograph of the outflow due to dam failure must be identified according to size of the fracture and then flood routing, and flood zone must be determined based on t...

Abstract Floods occur due to several factors including topographic conditions, high rainfall intensity, blockage of water flow, lack infiltration areas, deforestation, and so on. The Tojo watershed is included in the Parigi-Poso river area, with an area 211,830 km2 a length 25.52 km. In watershed, it necessary study flooding, because always flows every year. This research aims find out how much...

The purpose of this study was to analyze the flood discharge krung Tripa river re-period plan and behavior based on hydrographic data obtained from rainfall estimate magnitude peak discharge. Flooding is main problem caused by overflow Krung Tripa, with administrative passes through 2 (two) districts in Aceh Province, namely Nagan Raya regency area watershed (DAS) reached 3472.95 Km. Several fa...