Hydraulic Engineering Commons^™

Ncma Groundwater Model Using Usgs Modflow-2005/Pest, Brian Matthew Wallace

Master's Theses

A numerical model for the NCMA aquifer complex is presented. The objective of the study is to develop a numerical groundwater model for the NCMA aquifer system to enhance the understanding of subsurface groundwater flow. Infiltration, streamflow, pumping, and return flows are implemented to characterize the aquifer complex over time. The numerical model is calibrated to municipal and monitoring well data, average monthly water balances, and hydraulic contours. Transient aquifer inflows and outflows are assessed in the results of the study and are compared to balance terms from previous studies. The 2007 Todd Engineers Study subsurface inflows and outflows generate …

Bathymetric Survey For Lakes Azuei And Enriquillo, Hispaniola, Michael Piasecki, Mahrokh Moknatian, Fred Moshary, Joseph Cleto, Yolanda Leon, Jorge Gonzalez, Daniel Comarazamy

Publications and Research

The two largest lakes on the Caribbean Island of Hispaniola, Lake Azuei in Haiti and Lake Enriquillo in the Dominican Republic, have experienced dramatic growth and surface area expansion over the past few years leading to severe flooding and loss of arable land around the lake perimeters. In order to better understand the reasons for this unprecedented rate of expansion and the resulting consequences a multi-disciplinary team comprised of researchers from Haiti, the DR, and the US have embarked on an extensive data collecting and hydrologic and climatological modeling campaign. While the sensor deployment entails stations that measure climatological data …

Multi-Regression Prediction Of Metal Partition Coefficients Under Various Physical/Chemical Conditions Design Of Experiments As, Cr, Cu, Ni And Zn, Eid A. Alkhatib, Danielle Grunzke, Trey Chabot

Chemistry & Physics Faculty Publications

The behavior of metals in surface water is complex and their partition coefficients can be impacted by many factors. Organic matter (OM) content in sediments, pH and salinity, are factors that may influence speciation and partitioning of metals. The difficulty in describing the impacts and relationships are that these processes are interconnected with no dominant associations among all. In this study, the partitioning of five metals (As, Cr, Cu, Ni and Zn) under different levels of salinity, pH, and OM content were investigated. A series of factorial design experiments are evaluated in which three levels of OM are tested each …

The Use Of Semi-Structured Interviews For The Characterisation Of Farmer Irrigation Practices, Jimmy O’Keeffe, Wouter Buytaert, Ana Mijic, N. Brozovic, Rajiv Sinha

Daugherty Water for Food Global Institute: Faculty Publications

For the development of sustainable and realistic water security, generating information on the behaviours, characteristics, and drivers of users, as well as on the resource itself, is essential. In this paper we present a methodology for collecting qualitative and quantitative data on water use practices through semi-structured interviews. This approach facilitates the collection of detailed information on actors’ decisions in a convenient and cost-effective manner. Semi-structured interviews are organised around a topic guide, which helps lead the conversation in a standardised way while allowing sufficient opportunity for relevant issues to emerge. In addition, they can be used to obtain certain …

Mapping Evapotranspiration With High-Resolution Aircraft Imagery Over Vineyards Using One- And Two-Source Modeling Schemes, Ting Xia, William P. Kustas, Martha C. Anderson, Joseph G. Alfieri, Feng Gao, Lynn Mckee, John H. Prueger, Hatim M.E. Geli, C.M.U. Neale, Luis Sanchez, Maria Mar Alsina, Zhongjing Wang

Daugherty Water for Food Global Institute: Faculty Publications

Thermal and multispectral remote sensing data from low-altitude aircraft can provide high spatial resolution necessary for sub-field ( 10 m) and plant canopy (1 m) scale evapotranspiration (ET) monitoring. In this study, highresolution (sub-meter-scale) thermal infrared and multispectral shortwave data from aircraft are used to map ET over vineyards in central California with the two-source energy balance (TSEB) model and with a simple model having operational immediate capabilities called DATTUTDUT (Deriving Atmosphere Turbulent Transport Useful To Dummies Using Temperature). The latter uses contextual information within the image to scale between radiometric land surface temperature (TR) values representing hydrologic limits of …

Small Scale Water Filtration Project, Elaine Yang, Lang Ming, Alex Tees, Lauren Galle, Tristan Coffey, Andria Tattersfield, Colin Brock

PSU High School Innovation Challenge

Access to clean drinking water is a large problem that our world is facing today. Consuming contaminated water can lead to the spread of water-borne illnesses. Populations without the security of water struggle to develop, as seen predominately in Africa. As Oregonians prepare for life after a major earthquake which could devastate the infrastructure that delivers clean water to our homes, a water filtration system should be part of a family’s emergency preparedness plan.

There are a large variety of processes for achieving fresh water. Combining all of the necessary components to lead to clean water is a complex process, …

De La Salle Sensor, Shayla Adams, Geraldine Hernandez, Gloria Joseph, Elias Taylor, Elli Cooney

PSU High School Innovation Challenge

There is a huge amount of water being wasted and with climate change causing widespread water shortages, it is important that the people of Portland become more water conscious. With the our product, it will help you become aware of your water bill and the amount of water you use with a built in calculator.

Puddl: Gamifying Water Conservation, Quince Assenberg, Jack Chen, Denny Glenn, Jessica Lam

PSU High School Innovation Challenge

As the global population surges, the demand for fresh water will only increase. With no technological breakthrough on the horizon, it is more important than ever to conserve water and not waste this precious resource. Water conservation is a serious issue, and will only become more severe as global warming worsens. As the global temperature increases, and rainfall becomes more sporadic, it will be important for communities to find new ways to save water. This push has already been made in certain areas in the united states, California, where they were forced to reduce their water consumption by 25%.

Through …

Larc: Local Agricultural Resource Conservation, Dash Justice, Josh Davis, Sid Crumble, Ashlie Kinney

PSU High School Innovation Challenge

In America today, over 75% of the nation’s water is used in the irrigation of agriculture. The main users -- and abusers -- of water in the United States are farmers. In addition, many areas in the U.S. are facing drought conditions, especially in western states. Also, while the drought conditions in California are receding, water shortage as an issue demands a long term solution.

Isolated Water Circulation And Filtration System, Adrik Gurganus, Mellonie Mwawai, Wysteria Cedillo-Nielsen, Morgan Rekart, Zander Hoffman

PSU High School Innovation Challenge

One big issue we are addressing is the large amount greywater produced by average households around the country. Still, the main problem is that, in areas affected by drought such as California, people have little available clean water, and this system will greatly benefit these people directly. The Isolated water system uses a filtration combined of organic materials, soaps, dirt, foods and sink to filter out the grey used water. Since the water system is not connected with the local water system if there were a natural disaster the owner would have free access to a water source while the …

Residential Greywater Recycling System, Sophia Bui, Clare Clark, Anthony Hoang, Kim Le, Skyler Mishler, Janette Soler, Teresa Tran

PSU High School Innovation Challenge

In a typical household, a majority of the fresh water is utilized by the shower, bathroom sinks and laundry. Water exiting from these fixtures is considered greywater. This is wasteful because the greywater is being combined with blackwater making it unusable. If greywater could be separated and captured, it can be reused for other purposes. We came to the conclusion that greywater is able to be recycled and reused for flushing excreta.

A Genetic Approach To Designing A Novel Biological Sensor To Monitor Water Contamination, Cynthia Bui, Anissa Rosbaugh, Israel Gonzalez, Julie Lu, Colin Kuhns, Joel Crandall, Alyssa Faulk, Miriam Nguyen

PSU High School Innovation Challenge

Many cities across the country have experienced extreme water problems. The City of Portland has issued several water boiling advisories due to E. coli contamination. Additionally, there has been incidents of serious contaminants like lead leaching in water systems (Flint, Michigan). The Portland Water Bureau does not use a water treatment plant due to the quality of our water sources; a chlorination plant is used to chlorinate the water from the Bull Run Watershed (our main water source). Not having a water treatment plant makes Oregon more prone to a prolonged absence of potable water should the supply be contaminated. …

Aqua Band, Jessica Peterson, Sam Behrens, Michael Desimone, Aiden Nelson, Alexandra Leamy

PSU High School Innovation Challenge

People drown all of the time. Whether it's a young child playing in the river or a college student partying on a boat, there is always the danger of drowning. It is not always easy to tell if somebody is drowning. If you are a parent, you won’t always be watching your kids. When you look away and they start drowning, there is no safe way to be alerted of your child’s situation.

Channel Movement, Error Analysis, And Impacts For Neighboring Landowners: A Lower Bear River, Ut Case Study, Russell Babb, Kellie Shawn, Todd Brown, Ayman Alafifi, David Rosenberg

Spring Runoff Conference

The Bear River Fellows program is a unique learning experience for undergraduate students giving hands-on experience in collecting, synthesizing, and analyzing environmental and ecological data. The Bear River is an important resource that provides water to farms, reservoirs, wetlands, wildlife, and hydropower generation. Because of the river’s value, it is important to understand how the Bear River channel moves and how that affects the surrounding landscape, which is a topic of interest for local land owners but especially conservationists in protecting wetlands and river ecology. We collected hydrological, topologic, and vegetative data from three persisting research sites along an 8 …

Seasonal Flow Rates Along The Lower Bear River, Ut, Todd Keniry, Dahlia Curiel, Dylan Anderson, Ayman Alafifi, David E. Rosenberg

Spring Runoff Conference

The goal of this research is to identify how flow on the Bear River in Cache Valley has changed over the last three years and how flow changes seasonally. Identifying flows is important to manage water resources along the Bear River. We collected and processed water pressure data every 30 minutes using HOBO transducers at two sites in Cache Valley (Morton, just downstream of highway 142, and Confluence which is located at the confluence of the Bear and Cub Rivers) south of the Idaho‐Utah border in 2015. We also measured flow and water stage up to three times per year …

Exploring Large-Scale Parameterization Of Irrigation In The Northern High Plains, Mitch Maguire, Daniel Rico, Katherine Smith, Francisco Munoz-Arriola

UCARE: Research Products

Research Question – Objective - Hypothesis

How does irrigation respond to the demands of Crop Irrigation Requirements under extreme hydrometeorological events?

Implement a parameterization of irrigation into the land surface hydrology model VIC.

Changes in evapotranspiration (ET) will be more conspicuous during dry years, highlighting the limiting role of soil moisture in the model.

Estimating River Discharge Using Multiple-Tide Gauges Distributed Along A Channel, Hamed R. Moftakhari, David A. Jay, Stefan Talke

Civil and Environmental Engineering Faculty Publications and Presentations

Reliable estimation of freshwater inflow to the ocean from large tidal rivers is vital for water resources management and climate analyses. Discharge gauging stations are typically located beyond the tidal intrusion reach, such that inputs and losses occurring closer to the ocean are not included. Here, we develop a method of estimating river discharge using multiple gauges and time-dependent tidal statistics determined via wavelet analysis. The Multiple-gauge Tidal Discharge Estimate (MTDE) method is developed using data from the Columbia River and Fraser River estuaries and calibrated against river discharge. Next, we evaluate the general applicability of MTDE by testing an …

Estimating Evapotranspiration Of An Apple Orchard Using A Remote Sensing-Based Soil Water Balance, Magali Odi-Lara, Isidro Campos, C.M.U. Neale, Samuel Ortega-Farías, Carlos Poblete-Echeverria, Claudio Balbontín, Alfonso Calera

Daugherty Water for Food Global Institute: Faculty Publications

The main goal of this research was to estimate the actual evapotranspiration (ETc) of a drip-irrigated apple orchard located in the semi-arid region of Talca Valley (Chile) using a remote sensing-based soil water balance model. The methodology to estimate ETc is a modified version of the Food and Agriculture Organization of the United Nations (FAO) dual crop coefficient approach, in which the basal crop coefficient (Kcb) was derived from the soil adjusted vegetation index (SAVI) calculated from satellite images and incorporated into a daily soil water balance in the root zone. A linear relationship between the Kcb and SAVI was …

Storm Damage - Sr-57 June 2008, Dale Sedler, Mark Bailey

Purdue Road School

A review of the impact of the White River leaving its watershed and destroying a box culvert under SR-57 in Greene County, IN. Includes discussion about impact of illegal levee, and photos and discussion on contraction scour.

Storm Damage - Murphy's Law, Dale Sedler, Mark Bailey

Purdue Road School

Examination of a disastrous event that required 4 coinciding occurrences happening that individually would likely have resulted in minor or no damage.