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  • Scott Hagen: Far from the Farm – IIHR – Hydroscience & Engineering – University of Iowa
    2015 he moved to Louisiana State University where he is a tenured professor in the Department of Civil and Environmental Engineering he also has a half time appointment in the Center for Computation Technology Hagen holds the Louisiana Sea Grant Laborde Chair at LSU Rising Sea Levels Hagen is also director of UCF s Coastal Hydroscience Analysis Modeling and Predictive Simulations Laboratory CHAMPS CHAMPS includes faculty and students from a number of disciplines including engineering biology and communication Researchers focus on current coastal hydroscience challenges including development of an advanced astronomic tidal model to study rising sea levels Hagen is a leader among scientists studying rising sea levels and their impacts He was recently invited to speak at an event sponsored by the National Oceanic and Atmospheric Administration NOAA one of only eight chosen to present at the seminar He spoke about his study of the Ecological Effects of Sea Level Rise in the Northern Gulf of Mexico which is sponsored by NOAA The research focuses on developing models of sea level rise and its impacts along the coast Longing for an Iowa Tomato Hagen who enjoys travel and cooking when he has the time says he s still an Iowa farm boy at heart He especially misses Iowa tomatoes and high quality beef which is only available at four star restaurants in Florida Hagen s wife Denise DeLorme is a Georgia native and a professor of advertising and public relations at UCF She conducts focus groups and provides social science perspective for Hagen s research team Hagen serves on the board of the American Society of Civil Engineers ASCE Coasts Oceans Ports and Rivers Institute and was recently named a fellow of ASCE He is a technical advisor to Louisiana s 2017 Coastal Master Plan and he was selected to lead UCF s major research focus on the Coastal Dynamics of Sea Level Rise CDSLR which has a goal to establish a national center for CDSLR A Massive Model Hagen has not forgotten about his farm roots in fact he hopes to develop a large scale model that would encompass the Farm Belt of the upper Midwest the entire Mississippi River watershed and the Gulf of Mexico It would be huge Hagen says This basin scale model would help scientists understand the transport of nutrients from the Midwest to the Gulf of Mexico where they contribute to the hypoxic Dead Zone The goal would be to develop better more sustainable systems to support a healthy ecosystem It s a big dream but Hagen learned how to make it happen start small and take one modest step at a time He takes his lesson from his work years ago as a student with Dr Krajewski in the hydrometeorology lab which has now developed into the Iowa Flood Center It was basically a closet Hagen remembers And look at what he s built today Tags American Society of Civil Engineers ASCE Dead Zone hydrometeorology Iowa City Iowa Flood Center Jerry Schnoor

    Original URL path: http://www.iihr.uiowa.edu/education/meet-our-alumni/scott-hagen-far-from-the-farm/ (2015-11-11)
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  • J.V. Loperfido: Going with the Flow – IIHR – Hydroscience & Engineering – University of Iowa
    to be faculty advisors Jerry Schnoor and Craig Just when he visited Iowa as a prospective grad student Their knowledge and professionalism impressed him right from the start along with a certain approachable quality They were very down to earth and easy to talk to Loperfido says Loperfido s PhD dissertation High Frequency Sensing of Clear Creek Water Quality Mechanisms of Dissolved Oxygen and Turbidity Dynamics and Nutrient Transport won the 2009 Graduate Deans Distinguished Dissertation Award A Big City Adventure Loperfido and his wife Kim Lamon Loperfido also a UI alumnus are currently enjoying a big city adventure with their three cats in the Washington D C area which offers an almost endless abundance of cultural resources and historical landmarks Loperfido says they have a long list on the refrigerator of the museums galleries and monuments they still want to explore The avid hiking buffs have also found great trails within driving distance of their home in Arlington Va They especially like the mountainous terrain they ve encountered in the Shenandoah National Park A Lego Guy The Stillwater Minn native says he benefitted from growing up with two scientifically inclined parents I m definitely their son Loperfido says His father is a retired PhD chemist at 3M and his mother is a technical service engineer also at 3M Engineering appealed to him early on With his parents encouragement Loperfido knew by the 8th grade that he wanted to be a civil engineer Still he wasn t one of those kids who takes apart every toy in the house to find out how it works I was more of a Lego guy Loperfido says Loperfido says if he hadn t become an engineer he might have been an artist like his grandmother I love colors I love different patterns he explains I have a real interest in art Tags Clear Creek J V Loperfido nutrients Shenandoah National Park USGS water quality Last modified on June 29th 2015 Posted on May 20th 2014 Home About Greetings from the Director Fact Page IIHR at a Glance Where is IIHR Communications History IIHR s Historical Studies History Resources Hans Albert Einstein His Life as a Pioneering Engineer Sustainability at IIHR Evolving with the Times Intellectual Connections Worldwide IIHR Alumni Worldwide Archives Films by Hunter Rouse Employment Contact IIHR Webcam Education Graduate Program Admission Assistantships and Fellowships Graduate Student Opportunities Undergraduate Opportunities International Perspectives Service Projects Habitat for Humanity s Women Build Project Fluids Lab Meet Our Faculty and Staff Brandon Barquist Talking Shop Pablo Carrica Enjoying the Challenge George Constantinescu Rivers Run in the Family Carrie Davis Playing in the Mud Teresa Gaffey Transformations Anton Kruger How Stuff Works Troy Lyons Bridging the Gap Ricardo Mantilla Going with the Flow Jacob Odgaard Making an Impact Michelle Scherer Solving the Puzzle Fred Stern Revolutionizing Ship Hydrodynamics Stephanie Surine She s a Rocker Eric Tate Studying the Human Costs of Flooding H S Udaykumar The Reluctant Engineer Gabriele Villarini Working the Numbers Mark Wilson What

    Original URL path: http://www.iihr.uiowa.edu/education/meet-our-alumni/j-v-loperfido-going-with-the-flow/ (2015-11-11)
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  • The IGS Rock Library – IIHR – Hydroscience & Engineering – University of Iowa
    range of exceptionally well preserved fossils including some of the earliest known eurypterids an extinct group of arthropods related to spiders phyllocarids shrimp like animals what may be the earliest sporangia a plant structure in which spores are stored with in situ spores in the fossil record and much more Some slabs even include imprints of soft tissues which are very rare in the fossil record Liu says his colleagues worldwide were excited by this scientific discovery They called it a gold mine amazing stuff and even the discovery of the decade in Ordovician paleontology This is something special Langel says Now it s on our shelves and Paul Liu knows all about it Rock Chips The discovery of the meteor impact structure started with tiny bags of rock chips The IGS currently has almost 40 000 sets of rock chip samples in its repository which works out to about 1 5 million bags of rock chips IGS student employees carefully wash and process the rock chip samples and then put the prepared samples into small envelopes Austin Potthoff an undergraduate student in geology says he enjoys the work even if it is a bit repetitive You usually find one or two little treasures he says Professional staff later analyze the cleaned rock chips under the microscope You re looking at samples that haven t seen the light of day in 500 million years says IGS Geologist Jason Vogelgesang Each set of chips is translated onto a strip log which uses different colors symbols and abbreviations to visually represent what the well driller turned up Jason Vogelgesang examines a sample under the microscope The strip logs can be quite beautiful Each one is unique and IGS staff create them by hand with colored pencils Tiny neat handwriting is a must It s the hardest part says IGS Research Specialist Ryan Clark The IGS hopes to recreate the strip logs electronically but the complexity makes it challenging Core Samples Tell Iowa s Geological History Useful as the rock chips are IGS staff members get much more excited about drill core samples long cylinders of soil sand and rock drilled from beneath the Earth s surface Core for me is like the holy grail Langel says Core yields more detail and context than chip samples do Researchers can see the finer points sand grains shale layers fossils and fractures that allow groundwater to percolate through the rock and much more The IGS has core from more than 1 200 sites the core samples would stretch more than 100 miles if put end to end Using the chip and core samples researchers can model Iowa s geology in three dimensions across the entire state This information is important not only to scientists but also to industry communities and anyone who drinks water Reading Iowa s Groundwater In Iowa the primary use of geologic information is to better understand groundwater The IGS can provide a well forecast for any area of the state based

    Original URL path: http://www.iihr.uiowa.edu/research/iowa-geological-survey-joins-iihr/the-igs-rock-library/ (2015-11-11)
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  • Water Quality — Everyone’s Responsibility? – IIHR – Hydroscience & Engineering – University of Iowa
    know of a single land manager whose aim is nutrient runoff farmers recognize the economic and environmental costs of nutrient loss Whose Fault Is It Then We all get a share of the blame Ward says because we all benefit from the cheap and plentiful food provided by our current food system which he says is largely subsidized by nitrogen fertilizer Ward says he wants to help Iowans connect the dots to see how actions on the landscape have environmental economic and social consequences He hopes to help inform Iowans on how climate and human systems interact so we can more sustainably manage water resources Ward s focus is on how water moves through the landscape ranging from where the raindrop first touches the ground through the soil column into the groundwater and eventually into the stream network He asks questions such as How much water is moving through different locations on the landscape How long does the water spend in any one place What contaminants move with the water What are the ecological costs or benefits associated with this transport Ward says there are both hot spots and hot moments on the landscape Hot spots are locations where a desired process such as nitrogen removal occurs at a high rate Hot moments are times when these processes turn on at certain locations for a short while We need to match the pollutant source with the hot spots and moments in the system Ward explains For example if wetlands are hot spots for nitrate removal but those wetlands are the most efficient in the late summer their capacity for nitrate removal might not be well matched with peak nitrate loading which occurred in early spring in 2013 Ward says he hopes to work toward management practices in which nitrate loads and efficient removal are well synchronized in the system It s a matter of identifying the right combination of infrastructure and management to meet multiple objectives Ward explains What If Games Ward and several of his colleagues in the University of Iowa s Water Sustainability Initiative WSI recently applied for a National Science Foundation grant to study the environmental political and economic impacts of land management decisions and the information used to make those decisions Where does the information supporting decision making come from Who could influence land managers to take a second look at their practices Being a member of WSI helps build an effective diverse team very quickly Ward says It lets me think about problems a little differently because I know I have a team of experts who are excited about these interdisciplinary issues In his research Ward uses field monitoring to understand how water and solutes move through the system and numerical modeling to test the variables whether related to the science or to human decision making This combination of observations and modeling allows him to make projections of what might happen in the future Field monitoring helps us understand the current situation Ward explains Numerical

    Original URL path: http://www.iihr.uiowa.edu/research/water-sustainability-initiative/water-quality-everyones-responsibility/ (2015-11-11)
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  • Water Communication: A New Field – IIHR – Hydroscience & Engineering – University of Iowa
    fascinating discovery was the important role of opinion leaders In this case they found that bait vendors could influence others to prevent the spread of invasive species Murky Waters When Dalrymple came to Iowa she found a completely new environment In Iowa agriculture dominates the landscape virtually border to border The culture here is unique Dalrymple says and developing a thorough understanding of this Iowa ethos is an essential first step to her work Iowa s unique culture also requires new innovative outreach approaches for groups and communities such as large corporate farms that might not have been considered before Researchers also need to understand the current flow of information and the attitudes that already exist With this in mind Dalrymple and her team of graduate students conducted a statewide public opinion survey in late 2013 to learn what Iowans think about water issues and what differences may exist among groups Dalrymple is also studying how water related information is being disseminated to Iowans through the media primarily newspapers Team Water as Dalrymple calls her research group is collecting two years of water related articles from 11 Iowa newspapers They sorted and coded the articles by the type of information presented how it was framed politically economically and any suggestions for behavior changes that were made With WSI colleague Adam Ward Dalrymple recently applied for a grant from the National Science Foundation to study water sustainability and climate change She hopes the research will help identify Iowa opinion leaders who could affect behavior among land managers in the same way that bait vendors influenced Wisconsin anglers Water management authorities or WMAs could fulfill that role Dalrymple suggests Reaching Out Dalrymple hopes to turn her research into insights on how to communicate more effectively while providing the information that the public wants and needs A larger goal for the university as a whole is to enhance engagement with the public and to improve outreach efforts Researchers can do a better job of participating in the public conversation about water issues Dalrymple says by connecting with journalists and talking about research findings in accessible and useful ways She s excited to be in Iowa which she believes is well positioned for change Iowa could take the lead in the efforts to create a more sustainable future with regard to water Dalrymple says and have a significant impact on water quality nationally I have a lot of pride not only for this state Dalrymple says but also for this university Tags IIHR Kajsa Dalrymple SJMC UI School of Journalism and Mass Communication water quality Water Sustainability Initiative Last modified on June 25th 2015 Posted on June 4th 2014 Home About Greetings from the Director Fact Page IIHR at a Glance Where is IIHR Communications History IIHR s Historical Studies History Resources Hans Albert Einstein His Life as a Pioneering Engineer Sustainability at IIHR Evolving with the Times Intellectual Connections Worldwide IIHR Alumni Worldwide Archives Films by Hunter Rouse Employment Contact IIHR Webcam Education

    Original URL path: http://www.iihr.uiowa.edu/research/water-sustainability-initiative/water-communication-a-new-field/ (2015-11-11)
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  • The Human Costs of Flooding – IIHR – Hydroscience & Engineering – University of Iowa
    cost rather than economic loss front and center If you look at a range of our public policies they re mostly focused on dollars and infrastructure Tate says You really need to assess human impacts on par with economic impacts He believes even a small investment in the social side of flood mitigation could produce a big payout Jumping the Language Gap After completing his PhD Tate came to the University of Iowa as part of the water sustainability faculty cluster He thinks the multidisciplinary approach is key to solving complex problems In order to solve the really big problems in our society you have to be able to work across disciplines or you can t get holistic solutions As an engineer himself Tate has one big advantage in bridging the gap between engineering and geography he speaks the language Language gaps are real he says and make interdisciplinary work harder Sometimes people are talking about the exact same thing but they just use different terms The interdisciplinary cluster facilitates boundary crossing collaborations and opportunities to go after the bigger problems Being a part of this interdisciplinary group has definitely eased the transition to the university Tate says From day one I ve been part of a high profile effort he says It s definitely made a difference Monsoon Harvests Tate s status as a cluster member has already led to a new and interesting collaboration IIHR Research Engineer Nandita Basu heard Tate present at a cluster seminar and soon after invited him to join a research proposal titled Monsoon Harvests to support the study of groundwater sustainability in India Along with IIHR Assistant Research Engineer Craig Just Basu and Tate will travel to India in the near future to begin the research Tate says his contribution is studying sustainability indicators The concept of sustainability indicators can be hard to define Indicators are quantitative metrics to represent a bigger idea Tate explains In this case sustainability indicators could include hydrologic data gathered from sensors as well as census data personal interviews and more These quantitative facts can help researchers assess what kind of progress if any we re making toward sustainability Is This Heaven Tate whose wife s family is from India is looking forward to traveling to that South Asian country But he and his family are also enjoying life in small town Iowa I was kind of worried Tate admits This is the smallest town I ve ever lived in But he says they appreciate Iowa City s funky unique atmosphere and they especially like the freedom their two children have We live in a neighborhood that s just packed with kids Tate says Kids just show up and ask if my children can play They may go off about the neighborhood for hours and I don t feel worried about their safety which is a big change from where I m from Tags Eric Tate flood GIS Hurricane Katrina Iowa flooding sustainability University of Iowa University of

    Original URL path: http://www.iihr.uiowa.edu/research/other-research-initiatives/the-human-costs-of-flooding/ (2015-11-11)
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  • Developing a Digital Lung – IIHR – Hydroscience & Engineering – University of Iowa
    s processing power Helium harnesses the computational power of 3400 total cores 10 6 TB of memory and more than 500 TB of storage Mark Wilson director of research computing at IIHR says researchers in many disciplines rely on Helium s highperformance computing tools and methods The cluster cuts run times dramatically Wilson says Wilson credits Lin for bringing cluster computing to the university Ching Long had a larger vision he says Without him this never would have happened Lin in turn says it would have been almost impossible to build the cluster without Wilson s expertise He is really good The Physiome Project Lin has also established a stereoscopic 3D visualization laboratory enabling the analysis of large datasets on GPU based workstations He hopes to be able to present the results of his CFD work as 3D visualizations CFD scientific computation is one thing he says Presenting your result in this very fascinating way is also important Before Lin joined the digital lung project he conducted research using fluid mechanics and advanced CFD algorithms to study atmospheric boundary layer and two phase flows In 2004 Hoffman invited Lin to apply his knowledge of fluid mechanics and his expertise in highperformance computing to the human lung It is a very interesting area Lin says The UI team s work is part of a worldwide initiative to understand the vast scale of human biology Known as the Physiome Project Lin s digital lung is a crucial piece of this human puzzle Can Work Be Fun For Lin the work continues to be rewarding I enjoy it he says And that includes interacting with students I am lucky to get good students he says I try to encourage their strengths Graduate student Shinjiro Miyawaki came to Iowa from Japan to study river hydrology and found his way to Lin s digital lung team Miyawaki s main role on the team is to simulate tissue motion in the lung through CFD modeling It s really exciting Miyawaki says He also appreciates the respectful way Lin listens to student ideas Lin says he tries hard to avoid putting too much pressure on his students He hopes that they will find a profession as he has that keeps them motivated As long as they can get a job and be happy that s all right Lin says The digital lung project is a collaboration between the UI College of Engineering and the Roy J and Lucille A Carver College of Medicine Lin s UI colleagues include Hoffman and Dr David A Stoltz professor of internal medicine Tags CFD Ching Long Lin computational fluid dynamics health IIHR Iowa Comprehensive Lung Imaging Center Mark Wilson National Institutes of Health UIHC University of Iowa University of Iowa Hospitals and Clinics Last modified on June 25th 2015 Posted on February 27th 2012 Home About Greetings from the Director Fact Page IIHR at a Glance Where is IIHR Communications History IIHR s Historical Studies History Resources Hans Albert Einstein His

    Original URL path: http://www.iihr.uiowa.edu/research/biofluids/developing-a-digital-lung/ (2015-11-11)
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  • The Dynamics of Heart Valves – IIHR – Hydroscience & Engineering – University of Iowa
    challenges in the development of this fluid structure algorithm Chandran says It s much more complicated than normal engineering flow problems Two examples from K B Chandran s collection of mechanical heart valves Biomedical engineers use computer simulations known as computational fluid dynamics or CFD to predict the flow field around a mechanical valve but again blood complicates things In a small 1 mm cube of blood there are millions of red blood cells Chandran explains Currently the computer cannot handle computing all that So engineers are developing multi scale analysis which begins by performing the simulation at the large scale and then zooms in to see the detailed mechanics within a small region In addition to the CFD work IIHR researchers also perform a variety of experiments dealing with flow around a mechanical heart valve As an example using micro PIV micron resolution particle image velocimetry researchers can measure fluid and blood cell dynamics in a microscopic flow The results from the experimental work can then be used as a benchmark to validate the CFD simulations High performance Computing But the simulations are still more than any one computer even a super computer can process For such large scale computations they use a cluster of more than 200 computers The software delegates part of the computation to each processor The computers do the work simultaneously much faster than a single computer could That s called parallelizing the computation Chandran says As technology develops and we get more understanding we can get better and better simulations For Chandran the opportunity to improve the quality of life for others made the work especially rewarding It s a problem close to my heart he says Note Chandran and two of his engineering faculty colleagues are the editors of a book Image based Computational Modeling of the Human Circulatory and Pulmonary Systems Tags artificial heart valves biomedical engineering H S Udaykumar health IIHR K B Chandran Sarah Vigmostad Vijay Govindarajan Last modified on June 25th 2015 Posted on May 6th 2011 Home About Greetings from the Director Fact Page IIHR at a Glance Where is IIHR Communications History IIHR s Historical Studies History Resources Hans Albert Einstein His Life as a Pioneering Engineer Sustainability at IIHR Evolving with the Times Intellectual Connections Worldwide IIHR Alumni Worldwide Archives Films by Hunter Rouse Employment Contact IIHR Webcam Education Graduate Program Admission Assistantships and Fellowships Graduate Student Opportunities Undergraduate Opportunities International Perspectives Service Projects Habitat for Humanity s Women Build Project Fluids Lab Meet Our Faculty and Staff Brandon Barquist Talking Shop Pablo Carrica Enjoying the Challenge George Constantinescu Rivers Run in the Family Carrie Davis Playing in the Mud Teresa Gaffey Transformations Anton Kruger How Stuff Works Troy Lyons Bridging the Gap Ricardo Mantilla Going with the Flow Jacob Odgaard Making an Impact Michelle Scherer Solving the Puzzle Fred Stern Revolutionizing Ship Hydrodynamics Stephanie Surine She s a Rocker Eric Tate Studying the Human Costs of Flooding H S Udaykumar The Reluctant Engineer Gabriele Villarini

    Original URL path: http://www.iihr.uiowa.edu/research/biofluids/fluid-dynamics-of-artificial-heart-valves/ (2015-11-11)
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