GIS and Remote Sensing -Base SCS for Runoff Estimation: Al-Zarqa Basin Jordan

Saleh Taher Daqamseh

Runoff is an important factor for water resources planning and infrastructure developments. This study investigates the application of Soil Conservation Services (SCS) Curve Number (CN) method of runoff depths estimation for Zarqa basin, which covers an area of about 1012.60 km2. To apply the SCS-CN model successfully, various types of hydrological information was required. Data on soil group, drainage, and land use were extracted from satellite image which used for processing of soil and land use map of the watershed, and then SCS model was applied to estimate the runoff for the monthly storm. The estimated runoff was validated with the observed runoff of 2012-2014. The calculated storm runoff was compared to the observed runoff depth of different storm events of different years and found to be close to that of observed. The difference ranged between 5.2-18.6%. It was again found that the percentage of change in runoff due to the land-use change is almost constant with different land-use and the rainfall pattern (different years) for the study area.

Select Volume / Issues:

• Volume 7,Issue 6, Nov. 2016

Year:

2016

Type of Publication:

Article

Keywords:

Runoff; SCS-CN; Hydrological; Soil; Land Use; Runoff Depth

Journal:

IJECCE

Volume:

7

Number:

6

Pages:

358-362

Month:

November

ISSN:

2249-071X