CN-Idris: An Idrisi tool for generating curve number maps and estimating direct runoff

نویسندگان

  • Rafael Hernández Guzmán
  • Arturo Ruiz Luna
  • César Alejandro Berlanga Robles
چکیده

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 has the option to include spatial variation in rainfall input. 2011 Elsevier Ltd. All rights reserved. Software availability Name of software: CN-Idris Developer: Rafael Hernández Guzmán Contact address: CIAD, A.C. UnidadMazatlán. Av. Sábalo-Cerritos s/n. P.O. Box 711. Mazatlán, Sinaloa. 82010. México. Phone number: (þ52) 669 989 87 00 Ext. 251 Email: [email protected] First year available: 2010 Software requirements: IdrisiAndes or Idrisi Taiga software Hardware requirements: PCs with Windows. Program language: Visual Basic 6.0 Program size: 0.32 Mb Availability and cost: CN-Idris and data samples are free of charge.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Estimating Height runoff by using curve number method and Arc- CN Runoff tool in Afjeh Catchment

  In Iran, there is a general risk of runoff and flood, and since this country has a dry to semi-arid climate, its predominant rainfall is not evenly distributed in terms of time and place. Routine runoff at the earth's surface can lead to risks such as groundwater abatement, social issues such as population migration, erosion and loss of soil fertility, sedimentation in reservoirs and water q...

متن کامل

Determining Curve Number and Estimating Runoff Yield In HESARAK Catchment

The process of precipitation – runoff of each basin, is influenced by hydrologic, geomorphology conditions, geological formation and vegetation. There are different methods in drainage basins. One way to estimate the runoff height is Curve Number (CN) method. That reperesents the hydrological behavior of basin. data were collected for statistics of climate and then topographic map of 1: 25000 a...

متن کامل

Application of NRCS-curve number method for runoff estimation in a mountainous watershed

The major problem in the assessment of relationships between rainfall and runoff occurs when a study is carried out in ungauged watersheds in the absence of hydro-climatic data. This study aims to evaluate the applicability of Natural Resources Conservation Service-Curve Number (NRCS-CN) method together with GIS in estimating runoff depth in a mountainous watershed. The study was carried out in...

متن کامل

Assessment and Calibration of the Curve Number Method (SCS-CN) for Estimating Runoff in the Aras Sub-basins, North West of Iran

The SCS-curve number is one of the common methods to estimate drirect runoff in the watershed scale. There is often an uncertainty in predicting runoff in many areas due to to the model’s assumption on the initial abstraction ratio (l= 0.20). This study was conducted to evaluate the accuracy of SCS-CN method in estimating runoff in some semi-arid subbasins of the Aras river consits of the Livar...

متن کامل

Surface runoff estimation in an upper watershed using geo-spatial based soil conservation service-curve number method

Runoff assessment and estimation is crucial for watershed management as it provides information that is needed to expedite the course of watershed planning and development. The most commonly used model due to its simplicity and versatility in runoff estimation is the soil conservation service curve number developed by the United States Department of Agriculture. The study estimates the surface ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Environmental Modelling and Software

دوره 26  شماره 

صفحات  -

تاریخ انتشار 2011