in iran, most mountainous watersheds do not have enough hydrometery stations and defective stations have sparse data. because of limited availability of hydrologic data, watershed modeling plays a crucial role in development of local resources. in this study, swat was applied to simulate runoff in marun dam (idanak) watershed, a sub-basin of marun catchment. calibration and sensivity analyses w...

Large-scale simulation models are essential tools for scientific research and environmental decision-making because they can be used to synthesize knowledge, predict consequences of potential scenarios, and develop optimal solutions (Clark et al. 2001, Berk et al. 2002, Katz 2002). Modeling is often the only means of addressing complex environmental problems that occur at large scales (Klepper ...

Abstract The identification of rainfall catastrophe characteristics is important for consistency testing in hydrostatistical analysis. In this study, a new classification framework method (trend, mean and change-rate catastrophe) coupled Sequential Mann-Kendall (SQ-MK) algorithm Bernaola-Galvan heuristic segmentation (B-G) was proposed, scheme carried out the Qinglong River watershed, Northern ...

assessment of watershed management activities is one of the main subjects for future planning of practical projects and natural resources management. due to the lack of any tool for assessment of watershed processes in many cases, distributed hydrological models can be useful. the purpose of this study was evaluation of watershed management activities in kan watershed by hec-hms (hydrologic mod...

Unsustainable management of land resources aggravates degradation. An accurate assessment soil erosion is needed to reduce the problem loss in highly fragile mountainous areas. Modeling impact LULCC on a vital process for watershed planning. This study aimed examine effect changing LULC upper Mile sub watershed, North Eastern highlands Ethiopia. It was done by quantifying and evaluating over ye...

Phosphorus pollution from excessive litter application causes eutorphication of lakes in the Eucha-Spavinaw watershed in eastern Oklahoma and western Arkansas. Consequent algal blooms impair the taste of municipal water supply drawn from the watershed. The paper shows how GIS data based biophysical modeling can be used to derive spatially optimal, least-cost allocation of management practices t...

Many of Alabama's rivers and streams do not meet the Clean Water Act's "swimmable" goal due to fecal contamination. Catoma Creek in Montgomery County has been included on Alabama's Section 303(d) List due to elevated numbers of fecal coliform bacteria and organic enrichment. Both urban and agricultural land uses exist in the watershed. The objectives of this research were to construct a library...