| dc.contributor.author | Sande, Leif Andrew | |
| dc.description.abstract | Experimental studies on infiltration/soil-water movement processes are vital to
better understanding movement of soil-water in the vadose zone. The objective of this
experimental research was to investigate infiltration/soil-water movement processes
utilizing laboratory experiments and computer modeling. Small scale laboratory soil box
infiltration experiments were conducted and utilized for the improved parameterization of
the Green-Ampt (GA) saturated moisture content parameter to produce an effective
moisture content parameter (Be) for utilization in a modified GA model. By incorporating ⊖e
values into GA modeling, modeling results showed greatly improved wetting front
prediction across different soil conditions. A new soil packing method was proposed for
replicating complex microtopographical surfaces with uniform bulk densities in laboratory
soil box experiments which proved efficient and effective at accomplishing both objectives.
A rainfall simulator and an instantaneous-profile laser scanner were used to simulate
rainfall and quantify surface microtopography for experiments. The results clearly show the
effect of microtopography on infiltration and soil-water movement characteristics. This
offers valuable insight into infiltration/soil-water movement processes as affected by
different soil and surface microtopographic conditions. | en_US |
| dc.publisher | North Dakota State University | en_US |
| dc.rights | NDSU Policy 190.6.2 | |
| dc.title | Experimental Studies on Infiltration/Soil-Water Movement Processes and Green-AMPT Modeling | en_US |
| dc.type | Thesis | en_US |
| dc.date.accessioned | 2019-03-05T20:01:03Z | |
| dc.date.available | 2019-03-05T20:01:03Z | |
| dc.date.issued | 2011 | en_US |
| dc.identifier.uri | https://hdl.handle.net/10365/29329 | |
| dc.subject.lcsh | Soil infiltration rate -- Measurement. | en_US |
| dc.subject.lcsh | Groundwater flow -- Mathematical models. | en_US |
| dc.subject.lcsh | Soil moisture -- Mathematical models. | en_US |
| dc.subject.lcsh | Soil permeability -- Mathematical models. | en_US |
| dc.description.sponsorship | National Science Foundation (Grant No. EAR-0907588) | en_US |
| ndsu.degree | Master of Science (MS) | en_US |
| ndsu.college | Engineering | en_US |
| ndsu.department | Civil and Environmental Engineering | en_US |
| ndsu.program | Civil Engineering | en_US |
| ndsu.advisor | Chu, Xuefeng | |
