The surface water is a reflection of the climatic and topographical conditions basin in study area, affects estimation amount runoff on inside basin. It also possible to measure running know periods increase, scarcity this quantity, other hand, take advantage from for all fields uses. Qalachwalan one basins located at north city Sulaymaniyah with an area (876.1) km2, its sources are within bord...

The main goal of this paper is to propose a new practical method for hydrologic soil group estimation in surface runoff process based on geomorphology facieses and slop. The determination of CN based on this method can reduce the time and cost of project. In this research the upstream rivers of Glinak Watershed have been used as a case study to examine the efficiency of proposed method with a c...

the main goal of this paper is to propose a new practical method for hydrologic soil group estimation in surface runoff process based on geomorphology facieses and slop. the determination of cn based on this method can reduce the time and cost of project. in this research the upstream rivers of glinak watershed have been used as a case study to examine the efficiency of proposed method with a c...

Hydrologic models can be categorized as being either Newtonian or Darwinian in nature. The Newtonian approach requires a thorough understanding of the individual physical processes acting in a watershed in order to build a detailed hydrologic model based on the conservation equations. The Darwinian approach seeks to explain the behavior of a hydrologic system as a whole by identifying simple an...

Channel dynamics is an inherent characteristic of river in the floodplain region. It has some significant impacts on ecosystem and human life. GIS-based, DSAS CA-Markov models are efficient techniques to measure historical predictive changes following channel shifting LULC change. In this study, forty-eight years (1972–2020) earth observatory data were taken demarcate detect bank position chang...

The SCS curve number (SCS-CN) method has gained widespread popularity for simulating rainfall excess in various events due to its simplicity and practicality. However, it possesses inherent structural issues that limit performance accurately infiltration over time. objective of this study was develop a modified CN with temporally varying intensity (MCN-TVR) by combining soil moisture accounting...

Pembangunan konstruksi keairan seiring berjalannya waktu semakin meningkat dengan tujuan mencegah banjir, menaikkan tinggi muka air, maupun membantu manajemen sumber daya air. Tetapi pada perencanaannya butuh data debit selama 20 tahun yang sangat sulit didapat. Oleh karena itu adanya metode Hidrograf Satuan Sintetik (HSS) untuk menganalisa tanpa menggunakan curah hujan dan hanya karakteristik ...

Fast economic development and population growth has been the major impression in Taiwan for the past twenty years. However, the development has put pressure on the agriculture and overall hydrology of the nation. For example, peak runoff increases significantly in the urbanized area due to the increase of runoff coefficient, which was caused by the over-development of neighboring farmland, the ...