Modeling effect of initial soil moisture on sorptivity and infiltration Public Deposited

http://ir.library.oregonstate.edu/concern/articles/zp38wf29w

This is the publisher’s final pdf. The published article is copyrighted by the American Geophysical Union and can be found at:  http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1944-7973.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • A soil’s capillarity, associated with the parameter sorptivity, is a dominant control on infiltration, particularly at the onset of rainfall or irrigation. Many mathematical models used to estimate sorptivity are only valid for dry soils. This paper examines how sorptivity and its capillary component (as wetting front potential) change with initial degree of saturation. We capture these effects with a simple modification to the classic Green-Ampt model of sorptivity. The modified model has practical applications, including (1) accurately describing the relative sorptivity of a soil at various water contents and (2) allowing for quantification of a soil’s saturated hydraulic conductivity from sorptivity measurements, given estimates of the soil’s characteristic curve and initial water content. The latter application is particularly useful in soils of low permeability, where the time required to estimate hydraulic conductivity through steady-state methods can be impractical.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Stewart, R. D., D. E. Rupp, M. R. Abou Najm, and J. S. Selker (2013), Modeling effect of initial soil moisture on sorptivity and infiltration, Water Resources Research, 49, 7037–7047. doi:10.1002/wrcr.20508
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-05-05T15:31:44Z (GMT) No. of bitstreams: 1 StewartRyanBiologicalEcologicalEngineeringModelingEffectInitial.pdf: 737945 bytes, checksum: 4121dcc7d2a4592224430528efd45529 (MD5)
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-05-05T15:30:23Z (GMT) No. of bitstreams: 1 StewartRyanBiologicalEcologicalEngineeringModelingEffectInitial.pdf: 737945 bytes, checksum: 4121dcc7d2a4592224430528efd45529 (MD5)
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-05-05T15:30:06Z No. of bitstreams: 1 StewartRyanBiologicalEcologicalEngineeringModelingEffectInitial.pdf: 737945 bytes, checksum: 4121dcc7d2a4592224430528efd45529 (MD5)
  • description.provenance : Made available in DSpace on 2014-05-05T15:31:44Z (GMT). No. of bitstreams: 1 StewartRyanBiologicalEcologicalEngineeringModelingEffectInitial.pdf: 737945 bytes, checksum: 4121dcc7d2a4592224430528efd45529 (MD5) Previous issue date: 2013-10-28

Relationships

In Administrative Set:
Last modified: 07/26/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items