Estimating the probable maximum flood (PMF) using HEC-HMS Model: A case study in Northwest Iran-Ajichay's Basin
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 1
Abstract
Flood estimation is an important component of hydrology studies, water resource's projects and especially dam construction projects. In this study in order to estimate PMF of the Ajichay basin, we have selected HEC-HMS model among other precipitation-runoff mathematical models. Thus, the meteorological data records of 40 synoptic and rain gauge stations were gathered from the Bureau of Meteorology and the ministry of water resources (Tamab). Then, to estimate the basin's probable maximum flood, the main basin was divided into some smaller sub-basins and the physiographic characteristics of each basin were determined. The rainfall pattern was selected to base on a 24-hour rainfall type II pattern, and the largest 6-hour rainfall was extracted in different return's periods. Next, the HMS model was applied in order to create hydrographs of PMF at different return's periods and then hydrographs of PMF were drawn for various sub-basins. The amounts of PMF were calculated for all the sub-basin as well. The total PMF values at the return's periods of 2, 10, 25, 50, 100 and 200 years, were estimated accurately 18261, 33073, 42212, 49207, 55845 and 62198 in cubic meters per second respectively, over the Ajichay's catchment.
Authors and Affiliations
Ali. Hanafi, Faramarz Khoshakhlagh
Keywords
Related Articles
- EP ID EP38141
- DOI -
- Views 166
- Downloads 0
Species richness and diversity of terrestrial molluscs (Mollusca, Gastropoda) in Yapo classified forest, Côted’Ivoire
The land snail species richness and diversity in Yapo classified forest, Côte d’Ivoire, was studied using a combination of direct search and leaf-litter sieving techniques. In total, 27 species and 1045 individuals in 8...
Genetic diversity and phylogeography of hawksbill turtle in the Persian Gulf
Genetic diversity and phylogeography of Hawksbill sea turtle was studied by using sequencing of the mitochondrial DNA (D-loop and tRNA pro region). 45 dead embryos were collected from the Qeshm (25 samples) and Kish Is...
Effect of anthropisation and revegetation efforts on soil bacterial community structure in Terga sandpit, Algeria
Impact of anthropisation and revegetation on soil microbial diversity was studied by characterizing bacterial community structure in a sandpit located in Terga (Algeria). Soil samples were collected from several sites: a...
Flulc mapping and assessment of a typical sub watershed of Central India using IRS-P6 LISS 3 data
The forest land use/ land cover (FLULC) mapping and assessment of Chornai sub watershed has done by using IRS P6 LISS3 data of 2008 dataset. The study area is located in the eastern part of the Hasdeo river basin, Chha...
Knowledge, perception and attitude towards the current status of Cagayan de Oro River, Philippines
Rivers and river systems played a key role in the emergence of the world’s ancient civilization. Increasing knowledge, awareness and appreciation of the diverse values of the current status of CDO River, is necessary to...