Effects of soil data resolution on modeling results using physically based rainfall-runoff model.

Persistent Link:
http://hdl.handle.net/10150/191307
Title:
Effects of soil data resolution on modeling results using physically based rainfall-runoff model.
Author:
Bradley, Curtis M.
Issue Date:
2003
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Spatially based data representing soil hydraulic properties are available from the United States Natural Resources Conservation Service (NRCS) at several spatial resolutions. These databases can be used in physically based rainfall runoff models to predict watershed runoff. The advantages of using either a higher or lower resolution database have yet to be determined. In this study, using data from the Walnut Gulch Experimental Watershed in Southeast Arizona, the hydraulic properties from two NRCS databases are compared as well as their effects on the simulated runoff from the physically based rainfall runoff model KINEROS (Kinematic Runoff and Erosion). The two soils databases used in this study were the State Soil Geographic Data Base (STATSGO), and the Soil Survey Geographic Database (SSURGO) from Cochise County, Arizona. It was determined that the STATSGO did not represent a spatial averaging of the higher resolution SSURGO when the hydraulic parameters of the databases were compared. The difference between runoff predictions produced from the two databases did not increase with increasing watershed size. KINEROS was able to simulate observed runoff on 3 of 4 watersheds using the SSURGO database while it was unable to simulated observed runoff on any watershed using the STATSGO database.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Watershed management -- Arizona.; Runoff -- Arizona -- Cochise County -- Mathematical models.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Renewable Natural Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Guertin, D. Phillip

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleEffects of soil data resolution on modeling results using physically based rainfall-runoff model.en_US
dc.creatorBradley, Curtis M.en_US
dc.contributor.authorBradley, Curtis M.en_US
dc.date.issued2003en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractSpatially based data representing soil hydraulic properties are available from the United States Natural Resources Conservation Service (NRCS) at several spatial resolutions. These databases can be used in physically based rainfall runoff models to predict watershed runoff. The advantages of using either a higher or lower resolution database have yet to be determined. In this study, using data from the Walnut Gulch Experimental Watershed in Southeast Arizona, the hydraulic properties from two NRCS databases are compared as well as their effects on the simulated runoff from the physically based rainfall runoff model KINEROS (Kinematic Runoff and Erosion). The two soils databases used in this study were the State Soil Geographic Data Base (STATSGO), and the Soil Survey Geographic Database (SSURGO) from Cochise County, Arizona. It was determined that the STATSGO did not represent a spatial averaging of the higher resolution SSURGO when the hydraulic parameters of the databases were compared. The difference between runoff predictions produced from the two databases did not increase with increasing watershed size. KINEROS was able to simulate observed runoff on 3 of 4 watersheds using the SSURGO database while it was unable to simulated observed runoff on any watershed using the STATSGO database.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshWatershed management -- Arizona.en_US
dc.subject.lcshRunoff -- Arizona -- Cochise County -- Mathematical models.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairGuertin, D. Phillipen_US
dc.contributor.committeememberHawkins, Richard H.en_US
dc.contributor.committeememberMiller, Scott N.en_US
dc.identifier.oclc217291670en_US
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