Upscaling soil hydraulic properties at locall scale through topography

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

BABAEIAN EBRAHIM; HOMAEI MAHDI; NOROOZI ALI AKBAR

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Soil and Water Research Year:2018 | Volume:49 | Issue:3 Page(s): 561-571

Download Full-Text

Persian Verion

View:

408

Download:

Cites:

Information Journal Paper

Title

Upscaling soil hydraulic properties at locall scale through topography

Author(s)

BABAEIAN EBRAHIM | HOMAEI MAHDI | NOROOZI ALI AKBAR | Issue Writer Certificate

Keywords

Pedotransfer functionsQ2

spectrotransfer functionsQ2

topographyQ2

UpscalingQ1

power average operatorQ1

Abstract

Estimating effective soil hydraulic properties for largescale is an outstanding challenge in hydrologic modelling. The aim of this study was to provide effective van Genuchten-Mualem hydraulic parameters at localscale through topography-based Upscaling Pedotransfer functions (PTFs) and spectrotransfer functions (STFs, SPTFs). The Zanjanrood sub-watershed with an area about 250 Km2 was selected as the study area for this research. hereby, a topography-based aggregation scheme, the so-called power average operator, PAO, was used to upscale (1Km×1Km) point scale parameters of, , and. With respect to the results, considerable and significant correlations (R>0. 50) were obtained between measured and estimated hydraulic parameters. Upscaled STFs showed the largest and significant correlations with upscaled measurements of (0. 65), (0. 70), (0. 86), while upscaled PTFs performed best for (0. 55). The PAO performed best in the pixels which have the highest topographic index (CTI). The biggest R values were obtained between shape parameters (i. e., and ) andthe standard deviation CTI as well as between and with the average CTI. The ASAR estimated soil moisture values appeared to be significantly (p<0. 005) correlated (-0. 453) with the average CTI. The results of this study indicate that the topography is an important factor in characterization ofeffective soil hydraulic properties at localscale.

Cites

No record.

References

No record.

Cite

APA: Copy

BABAEIAN, EBRAHIM, HOMAEI, MAHDI, & NOROOZI, ALI AKBAR. (2018). Upscaling soil hydraulic properties at locall scale through topography. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 49(3 ), 561-571. SID. https://sid.ir/paper/225631/en

Vancouver: Copy

BABAEIAN EBRAHIM, HOMAEI MAHDI, NOROOZI ALI AKBAR. Upscaling soil hydraulic properties at locall scale through topography. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2018;49(3 ):561-571. Available from: https://sid.ir/paper/225631/en

IEEE: Copy

EBRAHIM BABAEIAN, MAHDI HOMAEI, and ALI AKBAR NOROOZI, “Upscaling soil hydraulic properties at locall scale through topography,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 49, no. 3 , pp. 561–571, 2018, [Online]. Available: https://sid.ir/paper/225631/en

Related Journal Papers