Comparison of infiltration model parameter estimation techniques under different land use/land covers
by Tabasum Rasool; Abdul Qayoom Dar; Mushtaq Ahmad Wani
International Journal of Hydrology Science and Technology (IJHST), Vol. 12, No. 4, 2021

Abstract: Quantification of infiltration rate of the soil is a complex problem because of its variability, selection of suitable infiltration model, and determination of infiltration model parameters which depend on various soil characteristics and land use/land cover. This study compares three parameter-estimation techniques viz. conventional graphical method, generalised reduced gradient (GRG) optimisation and Levenberg-Marquardt algorithm (LMA) for estimation of infiltration model parameters of Horton, Kostiakov, modified Kostiakov and Philip, and select the best fit method. Infiltration experiments were conducted to measure infiltration rate on three different land covers viz. farmland, built-up and shrubland under the soil textures of clay and sandy clay in an urban sub-basin of lesser Himalayas, India. The performance was assessed by computing different statistical indicators, and an overall performance index was computed to rank the techniques. From the comparative analysis, it was observed that LMA is the most suitable technique to ascertain the parameters of selected infiltration models.

Online publication date: Wed, 20-Oct-2021

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Hydrology Science and Technology (IJHST):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com