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...

Sub DAS Cikeruh merupakan kawasan dengan laju pertumbuhan penduduk yang tinggi, mana hal tersebut mengakibatkan alih fungsi lahan terjadi di beberapa kecamatan sehingga berimplikasi terhadap menurunnya ketersediaan air dan meningkatnya kebutuhan Cikeruh. Penelitian ini bertujuan untuk mengetahui status daya dukung melalui perbandingan rasio antara air. Kebutuhan dihitung menggunakan standar dit...

Pertambahan jumlah penduduk dan pembangunan yang terus meningkat menjadi permasalahan serius, terutama di wilayah perkotaan pusat perekonomian, pemerintahan, perdagangan perindustrian. Perubahan tata guna lahan akibat dapat menyebabkan sebuah mengalami banjir genangan terjadi pada musim hujan. Sub DAS Cikeruh merupakan bagian dari Citarum hulu. Wilayah dikenal sering musibah banjir. Penelitian ...

soil conservation service curve number method (scs-cn) is a widely applied technique for predicting direct runoff from rainfall has been used around the world. in this study, the curve number maps and entry physical model data of kheyrud basin to hec-hms model, the hec-geohms extension in arcgis software and google earth satellite images were used. in addition to the statistical analysis of sur...

The NRCS-CN (Natural Resources Conservation Service curve number) method, developed by the USDA (U.S. Department of Agriculture) is among most widely used for estimation surface runoff from watersheds. Ever since its introduction in 1950s, although it has been to a great extent engineers and hydrologists, applicability original procedure determine main parameter, number (CN), various regions wi...

The aim of the article was to verify curve number (CN) values given in National Engineering Handbook (NEH) methodology, whether they really correspond all wide-row crops. tested crops were maize, hops and potatoes grown using conventional soil conservation technologies. All these are classified as crops, but very different terms cultivation process. basis for calculation our CN field measuremen...

The Soil Conservation Service Curve Number (SCS-CN) approach is widely used as a simple method for predicting direct runoff volume for a given rainfall event. The CN parameter values corresponding to various soil, land cover, and land management conditions can be selected from tables, but it is preferable to estimate the CN value from measured rainfall-runoff data if available. However, previou...