A GIS-based survey for the optimization of infiltration forecasting models with emphasis on slope effect and land use

Mohammad Dorofki, Ahmed H. Elshafie, Othman Jaafar, Othman A. Karim, Sharifah Mastura Syed Abdullah

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Morphology and specifically slope have an important effect on water losses due to infiltration and obtained runoff from rainfall. Approximately all of infiltration models survey infiltration in the large scale region (like a basin) and through a vertical column. In other words, they work with this assumption that slope is equal to zero. There are few infiltration models such as modified green and Ampt model which use the slope as an input factor. But, since this parameter is the average slope of whole catchment, it cannot be really accurate. This paper is a raster-based investigation of slope effect on infiltration by considering land use which is one of the most important parameters in this case. For this purpose, geographic information system (GIS) has been used to divide Johor river basin in the south of Malaysia to 1436200 separated pixels (10 × 10 m) and study on each pixel as an independent catchment. To corroborate the suitability of the obtained results, eighteen different type of slope has been studied. The correlation coefficient indicates that thesquare cosine of slope is the most suitable function of slope which can be used for infiltration calculations.

Original languageEnglish
Pages (from-to)5738-5751
Number of pages14
JournalInternational Journal of Physical Sciences
Volume6
Issue number24
Publication statusPublished - 16 Oct 2011

Fingerprint

geographic information systems
land use
infiltration
Infiltration
Land use
forecasting
Geographic information systems
slopes
optimization
Catchments
Pixels
pixels
water loss
Runoff
Malaysia
river basins
Rain
drainage
Rivers
correlation coefficients

Keywords

  • Digital elevation model
  • Geographic information system
  • Infiltration forecasting model
  • Land use
  • Malaysia
  • Surface slope

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Electronic, Optical and Magnetic Materials

Cite this

A GIS-based survey for the optimization of infiltration forecasting models with emphasis on slope effect and land use. / Dorofki, Mohammad; Elshafie, Ahmed H.; Jaafar, Othman; A. Karim, Othman; Syed Abdullah, Sharifah Mastura.

In: International Journal of Physical Sciences, Vol. 6, No. 24, 16.10.2011, p. 5738-5751.

Research output: Contribution to journalArticle

@article{cb8487bd55be4837845e38dc79add09c,
title = "A GIS-based survey for the optimization of infiltration forecasting models with emphasis on slope effect and land use",
abstract = "Morphology and specifically slope have an important effect on water losses due to infiltration and obtained runoff from rainfall. Approximately all of infiltration models survey infiltration in the large scale region (like a basin) and through a vertical column. In other words, they work with this assumption that slope is equal to zero. There are few infiltration models such as modified green and Ampt model which use the slope as an input factor. But, since this parameter is the average slope of whole catchment, it cannot be really accurate. This paper is a raster-based investigation of slope effect on infiltration by considering land use which is one of the most important parameters in this case. For this purpose, geographic information system (GIS) has been used to divide Johor river basin in the south of Malaysia to 1436200 separated pixels (10 × 10 m) and study on each pixel as an independent catchment. To corroborate the suitability of the obtained results, eighteen different type of slope has been studied. The correlation coefficient indicates that thesquare cosine of slope is the most suitable function of slope which can be used for infiltration calculations.",
keywords = "Digital elevation model, Geographic information system, Infiltration forecasting model, Land use, Malaysia, Surface slope",
author = "Mohammad Dorofki and Elshafie, {Ahmed H.} and Othman Jaafar and {A. Karim}, Othman and {Syed Abdullah}, {Sharifah Mastura}",
year = "2011",
month = "10",
day = "16",
language = "English",
volume = "6",
pages = "5738--5751",
journal = "International Journal of Physical Sciences",
issn = "1992-1950",
publisher = "Academic Journals",
number = "24",

}

TY - JOUR

T1 - A GIS-based survey for the optimization of infiltration forecasting models with emphasis on slope effect and land use

AU - Dorofki, Mohammad

AU - Elshafie, Ahmed H.

AU - Jaafar, Othman

AU - A. Karim, Othman

AU - Syed Abdullah, Sharifah Mastura

PY - 2011/10/16

Y1 - 2011/10/16

N2 - Morphology and specifically slope have an important effect on water losses due to infiltration and obtained runoff from rainfall. Approximately all of infiltration models survey infiltration in the large scale region (like a basin) and through a vertical column. In other words, they work with this assumption that slope is equal to zero. There are few infiltration models such as modified green and Ampt model which use the slope as an input factor. But, since this parameter is the average slope of whole catchment, it cannot be really accurate. This paper is a raster-based investigation of slope effect on infiltration by considering land use which is one of the most important parameters in this case. For this purpose, geographic information system (GIS) has been used to divide Johor river basin in the south of Malaysia to 1436200 separated pixels (10 × 10 m) and study on each pixel as an independent catchment. To corroborate the suitability of the obtained results, eighteen different type of slope has been studied. The correlation coefficient indicates that thesquare cosine of slope is the most suitable function of slope which can be used for infiltration calculations.

AB - Morphology and specifically slope have an important effect on water losses due to infiltration and obtained runoff from rainfall. Approximately all of infiltration models survey infiltration in the large scale region (like a basin) and through a vertical column. In other words, they work with this assumption that slope is equal to zero. There are few infiltration models such as modified green and Ampt model which use the slope as an input factor. But, since this parameter is the average slope of whole catchment, it cannot be really accurate. This paper is a raster-based investigation of slope effect on infiltration by considering land use which is one of the most important parameters in this case. For this purpose, geographic information system (GIS) has been used to divide Johor river basin in the south of Malaysia to 1436200 separated pixels (10 × 10 m) and study on each pixel as an independent catchment. To corroborate the suitability of the obtained results, eighteen different type of slope has been studied. The correlation coefficient indicates that thesquare cosine of slope is the most suitable function of slope which can be used for infiltration calculations.

KW - Digital elevation model

KW - Geographic information system

KW - Infiltration forecasting model

KW - Land use

KW - Malaysia

KW - Surface slope

UR - http://www.scopus.com/inward/record.url?scp=80355126318&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80355126318&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:80355126318

VL - 6

SP - 5738

EP - 5751

JO - International Journal of Physical Sciences

JF - International Journal of Physical Sciences

SN - 1992-1950

IS - 24

ER -