twentyseventeen
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action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/hydrogeologymsu/public_html/wordpress/wp-includes/functions.php on line 6121I am a research technologist focused on supporting the lab in a variety of projects, and primarily focus on field work involving surface and groundwater in Northern Michigan. I am split part time between the MSU Hydrogeology lab and the Watershed Science and Ecohydrology Lab (PI Dr. Jay Zarnetske). My research interests include surface and groundwater interaction, urban water quality, and the intersection of hydrological and ecological processes.
]]>I received my Bachelor’s in Environmental Science and Policy from Clarkson
University. My previous research experience has involved studying the growth and
spread of aquatic invasive species in Northern New York. During my Bachelor’s
degree I participated in Clarkson University’s Adirondack Semester Program, where I
participated in a research project examining mercury deposition in Vernal Pools from
the St. Lawrence River to the Adirondack State Park. Outside of academia, I’m
passionate about a variety of outdoor activities including hiking, mountain biking,
and nature photography.
I am a PhD student in the Hydrogeology Lab working with Dr. Anthony D. Kendall. My research aims to better understand three renewable energy landscape subject areas: 1) agricultural security through placement, 2) agricultural and pollinator security through management, and 3) water security through placement and management. To achieve these goals, I use big-data and machine learning analysis with a collection of remotely sensed, survey/census, and modeled data across time and space. A deeper understanding of these practices will help inform future energy infrastructure to mitigate negative effects of our energy needs and possibly regenerate consequences of historical anthropogenic land use. As part of this effort, I am helping develop a field-network of instrumented and managed ground-mounted solar installations in Michigan and across the United States, and invite any external interest for collaboration in this effort. I am also broadly interested in regenerative apiculture, and how regenerative honey production and beekeeping can alter our agricultural landscape for the better.
I received my Bachelors in Geological Sciences from Hope College, and my Masters in Geological Sciences from MSU. My previous research experience includes studying agrisolar co-location in California’s Central Valley and investigating the balance between induced nutritional losses and water security through fallowing of irrigated cropland. During my Master’s degree, I also participated in NASA’s DEVELOP Program at NASA Langley, where I studied salt marsh vulnerability in South Carolina. Aside from academia, I have an astonishingly wonderful wife, Karey, who promotes local and sustainable food consumptions for Taste the Local Difference. I also have an adorable dog aptly named HoneyBee, and enjoy homebrewing mead, the world’s oldest alcoholic beverage.
MSc 2021, Michigan State University, Geological Sciences
Thesis: Detection and Assessment of Food, Energy, and Water Impacts of Solar Photovoltaic Co-Location in the California’s Central Valley
Advisor: Dr. David W. Hyndman
BS 2019, Hope College, Geological Sciences
Stid, J.T., Shukla, S., Anctil, A., Kendall, A.D., Rapp, J., & Hyndman, D.W. (2022). Solar array placement, electricity generation, and cropland displacement across California’s Central Valley. Science of The Total Environment, 835, 155240. https://doi.org/10.1016/j.scitotenv.2022.155240
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My research domain spans from field to basin scale hydrological modelling with a wide range of hydrological models (both numerical and conceptual). In particular, investigating wetlands’ hydrologic and hydraulic interactions with surrounding environments (e.g. rivers and aquifers) has been a preferable area to me over the last couple of years. Under my PhD work, I have developed a variant of Soil and Water Assessment Tool (SWAT) model to enhance SWAT’s capability in simulating riparian wetlands’ hydrology. My research also includes treatment (downscaling and bias correction) of raw Global Climate Model (GCM) generated data and assessing climate change effects on terrestrial water distribution. My current research is simulating groundwater recharge in an Amazonian experimental ranch where I am using the numerical HYDRUS model.
PhD 2017: University College London (UCL), UK; Department of Geography (Wetland Hydrology Unit)
MS 2011: North Dakota State University, USA; Agricultural and Biosystems Engineering Dept.
MS 2006: Bangladesh Agricultural University, Bangladesh; Irrigation and Water Management Dept.
BS 2004: Bangladesh Agricultural University, Bangladesh; Faculty of Agricultural Engineering and Technology.
Rahman, M. M., Thompson, J. R, and Flower, R. J. 2019. Hydrological impacts of climate change on river-wetland systems in the Upper Meghna River Basin (Bangladesh and India) and their implications for rice cultivation. Hydrological Sciences Journal. DOI: 10.1080/02626667.2019.1676427
Rahman, M. M., Thompson, J. R, and Flower, R. J. 2016. An enhanced SWAT wetland module to quantify hydraulic interactions between riparian depressional wetlands, rivers and aquifers. Environmental Modelling and Software, vol: 84, p: 263-289. doi.org/10.1016/j.envsoft.2016.07.003
Rahman, M. M., Z. Lin, X. Jia, D. D. Steele, and T. M. DeSutter. 2014. Impact of subsurface drainage on streamflows in the Red River of the North basin. Journal of Hydrology, vol: 511, p: 474-483. doi.org/10.1016/j.jhydrol.2014.01.070
]]>My research is focused on the geochemistry of modern and ancient sediments. Specifically, I employ a wide variety of tools including stable isotope and trace element geochemistry to reconstruct ancient environments. My previous work was focused on low-oxygen settings and understanding the role of anoxia on local and global ocean chemistry and ecology. Ongoing projects include reconstructing sulfur cycling in methane seep environments and the depositional history of the organic-rich Monterey Formation and its impact on and role in Miocene climate. Current work at Michigan State includes using nitrate nitrogen and oxygen isotopes to determine nitrogen sources to Michigan rivers, and using boron isotopes to quantify septic contamination in freshwater systems.
Ph.D. The University of California Riverside, Earth Science
Graduate Advisor: Timothy W. Lyons
Dissertation Title: Proxy Applications for Reconstructing Carbon and Sulfur Cycling in Ancient Marine Environments
B.S. The University of Georgia, Geology
Hancock, L.G., Hardisty, D.S., Behl R.J., and Lyons T.W., 2019, A multi-basin redox reconstruction for the Miocene Monterey Formation, California, USA: Palaeogeography, Palaeoclimatology, Palaeoecology., v. 520, p. 114-127, 10.1016/j.palaeo.2019.01.031.
Feenstra, E.J., Birgel, D., Heindel, K., Wehrmann, L.M., Jaramillo-Vogel, D., Grobety, B., Frank, N., Hancock, L.G., Van Rooij D., Peckmann, J., and Foubert A., in review, Constraining the formation of authigenic carbonates in a recent seepage affected cold-water coral mound by lipid biomarkers: Geobiology.
Walker, S.E., Hancock, L.G., Bowser, S.S., 2017, Diversity, biogeography, body size, and fossil record of parasitic and suspected parasitic foraminifera: A review: Journal of Foraminiferal Research, v. 47, p. 35-56.
Tarhan, L.G., Haddad, E., Solon, C.M., Dahl, R.M., Hancock, L.G, Henry, S.E., Joel, L.V., and Thompson, T.J., Droser, M.L., 2016, Seafloor colonization in the earliest Paleozoic: evidence from the Cambrian of Death Valley: Proceedings of the Death Valley Natural History Association, p. 3-27.
Loyd, S.J., Sample, J., Tripati, R.E, Defliese, W.F., Brooks, K., Hovland, M., Torres, M., Marlow, J., Hancock, L.G., Martin, R., Lyons, T.W., and Tripati, A.E., 2016, Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures, Nature Communications, v. 7, article 12274.
Hancock, L.G., Walker, S.E., Perez-Huerta, A., and Bowser, S.S., 2015, Population dynamics and parasite load of a foraminifer on its Antarctic scallop host with their carbonate biomass contributions: PLOS ONE, 10(7): DOI: 10.1371/journal.pone.0132534.
Generally, I have interests in interdisciplinary research to better understand the complexity of coupled human environment systems. Specially, I have focused on climate change, extreme climate events, landscape pattern evolution and their impacts on surface runoff, water quality and ecosystem services. Currently, my research involves nutrients transport in Great Lakes Basin using a spatially explicit modeling method, also nutrient simulations using a fully-coupled, process-based integrated hydrologic model in agricultural watersheds.
2018-Present: Ph.D. student in Earth and Environmental Sciences, Michigan State University
2016-2017: visiting student in Agricultural and Biological Engineering, Purdue University
2014-2017: MS in Geography, South China Normal University
2010-2014: BS in Land Resource Management, Hunan Normal University
I grew up in a small farming suburb of Grand Rapids, Michigan where my parents greatly enforced the value of curiosity and discovery. Being surrounded by freshwater my entire life fostered a deep appreciation for the environment and the dynamic interactions between humans and varying ecosystems. During my undergraduate experience at The Ohio State University, I was able to utilize my passion as well as supporting coursework to perform research of groundwater contamination. My Bachelor’s Thesis redirected my interests from analyzing water issues that had already occurred to prevention of water issues that may arise. In my graduate education, my goal is to directly impact people in a positive way through science discovery which is why I work with the Hydrogeology Lab at MSU.
I am interested in the effects of anthropogenic water use on overall environmental, economic, and energetic sustainability. A majority of water withdrawal is used for agricultural irrigation, and irrigation is paramount to sustainability. Through data analysis and the use of models created by the hydrogeology lab, the USGS, and more, I investigate the impacts of agricultural irrigation on the energy footprint and water resources of the Central Valley in California.
Cycles of nitrogen and phosphorus have been driven out of balance by anthropogenic processes. My work seeks to understand nutrient sources and transport at regional scales. As an NSF graduate research fellow, I led development on the Spatially Explicit Nutrient Source Map (SENSMap) in the Great Lakes Basin, a product that quantifies seven N and P source applications at 30 m resolution. I am interested in modelling the fate of these nutrient applications as they move across the land surface and through groundwater.
MS Student September 2017 – present, Environmental Geosciences, Michigan State University
BS Geographic Information Science 2017, Michigan State University
Hamlin, Quercus F., Kendall, Anthony D., Martin, Sherry L., Whitenack, Henry D., Roush, Jacob A., Hannah, Bailey A., Hyndman, David W. “Spatially Explicit Nutrient Source Map (SENSMap): Quantifying Landscape Nutrient Inputs in the Great Lakes Basin.” Journal of Geophysical Research: Biogeosciences (In Review)
Hamlin, Quercus F., Kendall, Anthony D., Martin, Sherry L., Hyndman, David W. “Quantifying Nutrient Loading Landscapes using Spatially Explicit Maps in the Great Lakes Basin”. Poster. American Geophysical Union Fall Meeting. 12 December 2018.
Hamlin, Quercus F., Kendall, Anthony D., Martin, Sherry L., Hyndman, David W. “Quantifying Nutrient Inputs in the Great Lakes Basin with SENSMap (Spatially Explicit Nutrient Source Map)”. Oral. US International Association for Landscape Ecology Annual Meeting. 11 April 2018.
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The health of the High Plains Aquifer is directly related to the extent and demands of the irrigated landscapes that exist within it. My research aims to further the understanding of this irrigation by generating high resolution GIS map products using remotely sensed imagery fused with environmental data.
CV
Posters, Papers, and Publications
]]>Human activity is drastically altering the planet we live on in ways that we don’t fully understand. I am interested in studying the effects of hydropower installation, changes in land use, and climate change on the hydrologic regime of the Mekong River Basin. Study of this system will give crucial insight into how human activity affects one of the world’s largest rivers and how we could further manage this system to sustainably provide fresh water for the millions who depend on it.
I am a PhD candidate in the hydrogeology lab and a student intern with the U.S. Geological Survey’s Upper Midwest Water Science Center in Lansing, MI. My research focuses on better understating water quality and water resources in the Great Lakes though integration of field and remotely sensed data with process-based hydrologic models. My work is focused in two primary research areas: 1) investigating the landscape characteristics and hydrologic processes controlling stream chemistry, with a focus on anthropogenic nutrients and, 2) interactions between the Great Lakes and Michigan’s terrestrial groundwater. I am also interested in the fate and transport of emerging contaminants, and how surface water-groundwater interactions affect aquatic habitats in both streams and wetlands. In addition to my current work, I am actively interested in connecting hunter- and angler-based conservation organizations to academic research hydrology and water quality, to advance habitat protection and restoration efforts.
I received my Bachelors in biology form Albion College, and my Masters in Earth and Environmental Science from MSU in 2020. Between my Bachelors and Masters degrees, I worked at Los Alamos National Laboratory in the Earth and Environmental Sciences Division. My previous research has focused on the fate, transport, and remediation of organic contaminants in groundwater aquifers, nutrient biogeochemistry in groundwater discharge areas with stream channels, and the effects of land cover and climate change on water resources in the Brazilian Amazon. In addition to my academic interest in water, I’m an avid outdoorsman, and an active member of Backcountry Hunters and Anglers, Ducks Unlimited, and Trout Unlimited.
]]>My research interests include determining how human activity can affect water quality and play a role in watershed ecology. More specifically, I am investigating how landscape nutrient loading relates to coastal wetland invasion within the Great Lakes.
Numerical simulation and uncertainty quantification of groundwater flow and solute transport
Water resources sustainability
Coupled climate, hydrologic and social-economic systems
Model-data fusion
Machine learning
Ph.D. Civil Engineering, University of Illinois at Urbana-Champaign, Jun. 2012 – Aug. 2016
Thesis title: An efficient fully Bayesian approach to uncertainty quantification of groundwater models
M.S. Civil Engineering, University of Illinois at Urbana-Champaign, Aug. 2010 – May. 2012
Thesis title: Use of data-driven models to improve prediction of physically based groundwater models.
B.S. Geotechnical Engineering, Nanjing University, China, Sep. 2006 – Jun. 2010
Xu, A. J. Valocchi, M. Ye and F. Liang. Quantifying model structural error: efficient Bayesian calibration of a regional groundwater flow model with a data-driven error model and fast surrogates. Water Resources Research, submitted.
Xu and K. Guan, Temporally and spatially ranging response of rainfed corn yield to climate and extreme events in the U.S. Corn Belt, Global Change Biology, in preparation.
Xu, A. J. Valocchi, M. Ye, F. Liang and Y.F. Lin. Bayesian calibration of groundwater models with input data uncertainty. Water Resources Research, in revision.
Xu and A. J. Valocchi. A Bayesian approach to improved calibration and prediction of groundwater models with structural error. Water Resources Research, 51(11): 9290-9311, 2015.
Xu and A. J. Valocchi. Data-driven methods to improve baseflow prediction of a regional groundwater model. Computers & Geosciences, 85(B): 124-136, 2015.
Choi, J., E. Amir, T. Xu and A. J. Valocchi. Learning relational Kalman filtering. In Proc. 29th AAAI Conf. on Artificial Intelligence (AAAI-15), Austin, TX, Jan. 2015.
T. Xu, A. J. Valocchi, J. Choi, and E. Amir. Use of machine learning methods to reduce predictive error of groundwater models. Groundwater, 52(3): 448-460, 2014.
Complete CV
CV (Last Updated September 2016)
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My research interests involve examining shallow groundwater, surface hydrology and groundwater-surface water interactions through empirical observation and geochemical (isotopic) methods. My interest in this area stems from a desire to help our society better manage these natural resources and best prepare for the changes to these systems due to global climate change. My current research involves examining changes to groundwater and river systems in Michigan’s Lower Peninsula due to changes in snow melt timing and dynamics. Previous research involved the use of stable isotopes to better understand the relations of groundwater, surface water and precipitation at the headwaters of the White River in Manistee National Forest and quantifying groundwater discharge into the White River through the use of seepage meters.
2016-Present: Ph.D. student in Environmental Geoscience, Michigan State University
2014-2016: MS in Geoscience, Western Michigan University
2009-2014: BS in Geology, University of Southern Indiana
Doss, P.K., Feldhaus, A, Ford, C., Stephens, M. and Chambers, T.B., 2014, Long-Term Monitoring of Water Resources with Undergraduate Student Collaborators: Geological Society of America Abstracts with Programs. Vol. 46, No. 6, p.527.
Ford, C. M. and Doss, P. K., 2013, Characterizing Groundwater Seepage In The Headwaters Of The White River, Manistee National Forest, Michigan: Geological Society of America Abstracts with Programs. Vol. 45, No. 7, p.201
Ford, C.M., Hampton, D.R., Doss, P.K., and Krishnamurthy, R.V., 2015, Characterizing Heterogeneous Discharge in the Headwaters of the White River, Manistee National Forest, Michigan: Abstract M-35 presented at the 2015 AGU Chapman Conference: The MADE Challenge for Groundwater Transport in Highly Heterogeneous Aquifers: Insights from 30 Years of Modeling and Characterization at the Field Scale and Promising Future Directions, Valencia, Spain, 5-8 October.
Ford – Curriculum Vitae August 2016
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My research interests include using sensing techniques to quantify near surface transport in order to serve a global society. Currently, I am modeling recharge in the Southern High Plains Aquifer in response to land use and climate change in order to better understand the future of food and water sustainability in this heavily irrigated area. Previously, I have quantified surface water-groundwater exchange using electrical resistivity tomography in order to better understand hyporheic transport as a design goal for stream restoration structures.
2014-Present, PhD student in Environmental Geoscience, Michigan State University
2012-2014, MS in Geoscience, University of Iowa
2008-2012, BS in Geology, Environmental Science, Olivet Nazarene University
PRESENTATIONS
Smidt, SJ, JA Cullin, AS Ward, J Robinson, MA Zimmer, LK Lautz, TA Endreny. A comparison of hyporheic transport at a stream restoration structure and natural feature. Department of Engineering Research Open House, Iowa City, IA. 2014.
Smidt, SJ, AS Ward. Using electrical resistivity tomography to quantify hyporheic exchange. James F. Jakobsen Graduate Conference, Iowa City, IA. 2014.
Smidt, SJ, AS Ward. Electrical resistivity tomography as a hydrogeophysical tool for characterizing surface water-groundwater interactions. Annual Meeting of the Iowa Academy of Science, Fort Dodge, IA. 2014.
Smidt, SJ, AS Ward. Quantifying the controls of discharge and regional hydrogeologic gradients hyporheic exchange. American Geophysical Union Fall Meeting, San Francisco, CA. 2013.
Smidt, SJ, AS Ward. Quantifying the controls of discharge and regional hydrogeologic gradients hyporheic exchange. Geological Society of America Annual Meeting, Denver, CO. 2013.
Smidt, SJ, AS Ward, JA Cullin, J Robinson, TA Endreny, LK Lautz, MA Zimmer. Do stream restoration structures create hyporheic zones that are comparable to those at natural features? Society for Freshwater Science, Jacksonville, FL. 2013.
Smidt, SJ, AS Ward. Experimental design for quantifying the role of stream gradient and discharge on hyporheic exchange. James F. Jakobsen Graduate Conference. Iowa City, IA. 2013.
Ward, AS, J Robinson, TA Endreny, JA Cullin, SJ Smidt, LK Lautz, MA Zimmer. Do stream restoration structures create hyporheic zones that are comparable to those at natural features? American Geophysical Union, San Francisco, CA. 2012.
PUBLICATIONS
Smidt, SJ, JA Cullin, AS Ward, J Robinson, MA Zimmer, LK Lautz, TA Endreny. A comparison of hyporheic transport at a stream restoration structure and natural riffle feature. Groundwater. In Review.
Download my complete CV
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Growing up near a beautiful coast in China, I gained my love for water and rocks. Studying in major about soil and water presented a good basic for my research. I have a strong desire to learn more about nature and help to improve the environment. Satellite-based Estimates of Groundwater Depletion in India by Matthew Rodell published in Nature in 2009 attracted my attention on ground water, which shown in the article, changed more considerably than surface water in India. It is significantly important and challenging, so I made my decision to focus on groundwater more than surface water in my following career.
I am interested in exploring groundwater and how to use groundwater best for human. I’m currently focused on coupling human and natural systems and improve water resources sustainability in metropolis.
I am interested in studying the High Plains Aquifer through the CLASS project. Some of the aspects that intrigue me include the effect of climate change as well as the economic impact of the aquifer. I will use various models to study the aquifer’s changes throughout time such as rate of depletion and recharge.
Download my complete CV.
]]>Download my complete resume.
]]>My research integrates the biophysical, socioeconomic, and political components of human water use to inform sustainable water management. I use satellite remote sensing and economic data to drive physical models of human-water systems, including agricultural and urban water uses. These systems models are then used to understand human water use, governance, and the associated impacts on water resources.
Deines Curriculum Vitae – September 2017
Education
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Some say I was born with a rock in my hand. My first memories are of rocks. In fact, all of my memories involve rocks. When I was very young I was playing in a stream looking for rocks, I noticed that rocks in the stream were much smoother than rocks on the banks of the stream. I thought “That’s pretty neat”. At that moment I knew that I wanted to learn about rocks and water, forever. My only wish was that there was some field of study that incorporated both of those concepts.
No Formal Education.
Nomadic skills acquired from years spent living with wild bears in the heart of the Siberian Forests.
Served as a test dummy for many governmental experiments in the early 2000’s.
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I grew up along the southern edge of the Adirondack Park in upstate New York, spending each summer outside – swimming in lakes, catching crayfish, climbing trees, etc. etc. Fortunately, those experiences gave me an intense appreciation for the quality of the environment and directed my career path towards the earth sciences. As an undergraduate at Brockport, I was lucky enough to study and research within the Water Resources Department while simultaneously gaining problem solving and programming skills as a Physics major. My desire to combine these interests led me to Hydrogeophysics here at MSU, where I’ve been able to apply my diverse abilities to develop models that help us understand how different factors influence the behavior of water in the environment.
I’m interested in using geophysical techniques and modeling to investigate how water moves in the shallow subsurface beyond point scales. Plant-water interactions play a huge role in controlling how water is distributed in the vadose-zone, but are traditionally difficult to quantify. Using non-invasive methods we can get a close look at the system without disturbing it. This kind of information is critical to anticipate how changes in land use and climate will influence future water balances. I’m currently focused on coupling hydrological and geophysical models to optimize root-uptake functions.
Download my complete CV (updated 08/01/2017).
]]>During my undergraduate studies at Illinois State University, I worked as a research assistant for the Geology department’s paleontologist and also as a tutor for an introductory level geology course. After earning my degree, I worked for a petroleum company in southern Illinois managing and monitoring multi-formation water injection wells used in secondary recovery of hydrocarbons.
My research focuses on the possible impacts of biofuel crop production and climate change on future water quality and quantity. More specifically, I am attempting to determine how various cellulosic biofuel feedstocks will affect the water balance when compared to one another as well as more traditional grain-based feedstocks. To do this, I work with data collected from biofuel crop test plots and integrate it with state-of-the-art hydrogeologic models to simulated crop, soil, and water interactions.
Download my complete CV.
]]>Forests cover approximately one third of the global land surface area. Changes induced by human activities can exert significant impacts on the environmental services provided by forests. Nevertheless, the long term footprints of certain types of forest cover conversions on the water and biogeochemical cycles are poorly understood. My research work has focused on observing and predicting hydrological processes in managed forested ecosystems. This is, how the disturbance and recovery of forests can affect the components of the water balance.
Currently, I am investigating the potential effects on the water quantity and quality of the Great Lakes Basin from on-going environmental changes as the intensive development of biofuel crops in the Midwestern United States. I am also involved in the large-scale assessment of the Ogallala-High Plains aquifer, one of the largest aquifers in the world, from a sustainability approach that combines climate, economic, social, crop, and hydrological models. A third topic of my research concerns the observation and modeling of subsurface processes using geophysical methods.
Moreover, I am also interested on additional topics as ecohydrology, desertification, nonlinear patterns in geophysics, climate change and infrastructure and, water management systems.
My research focuses on developing source models for nutrient loading to watersheds in the lower peninsula of Michigan. Watershed nutrient loading models are important tools used to address issues including eutrophication, harmful algal blooms, and decreases in aquatic species diversity. A source specific model will help show the value of detailed source inputs, revealing regional trends while still providing insight to the existence of variability at smaller scales.
I have additional interest and background in groundwater management, characterization, and prediction for mining projects and contaminated sites.
Dartmouth College, 2008 BA
Luscz E.C., Kendall, A.D., Martin, S.L., Hyndman, D.W. (2011): Modeling Nutrient Loading to Watersheds in the Great Lakes Basin: A Detailed Source Model at the Regional Scale, AGU Fall Meeting, San Francisco
Breckenridge, James Larry; Luscz, Emily (2011): Predicting Underground Mine Dewatering Requirements: A Case Study of a Precious Metal Mine in a Subtropical Environment. – In: Rüde, R. T., Freund, A. & Wolkersdorfer, Ch.: Mine Water – Managing the Challenges. – p. 101 – 105; Aachen, Germany.
]]>My primary research interest is the impacts of global change on hydrology and sediment. This encompasses investigating causes of changing streamflow across Michigan, land use impacts due to a ski area in Minnesota, legacy forestry impacts in Northern Michigan, and potential impacts of climate change on hydrology and sediment yield from agricultural watersheds in the southern portion of the Great Lakes Basin.
Certificate, Complex Systems, University of Michigan, Ann Arbor, MI, 2004.
M.S.E., Environmental Engineering, University of Michigan, Ann Arbor, MI, 2003.
B.S., Industrial & Management Engineering, Rensselaer Polytechnic Institute, Troy, NY, 1998.
Calappi TJ, CJ Miller, DD Carpenter, TA Dahl (2011). Developing a Family of Curves for the HEC-18 Scour Equation. Journal of Hydraulic Engineering (In Review)
Stone AG, MS Riedel, TA Dahl, JP Selegean (2010). Application and Validation of a GIS-Based Stream Bank Stability Tool for the Great Lakes Region. J. Soil and Water Conservation, 65 (4): 92A-98A.
Dahl TA and TR Willemain (2001). The effect of long-memory arrivals on queue performance. Oper. Res. Lett. 29(3): 123-127.
Dahl TA, CT Creech, JP Selegean (2011). Reducing Sediment Loads to USACE Harbors: Case Studies from the Great Lakes. U.S. Army Corps of Engineers Infrastructure Systems Conference, June 13-17, Atlanta, GA.
Calappi TJ, TA Dahl, KW Kompoltowicz (2011). Water Level Forecasting and Regulation in the Upper Great Lakes. U.S. Army Corps of Engineers Infrastructure Systems Conference, June 13-17, Atlanta, GA.
Dahl TA, JW Lewis (2011). The Use of Residual Net Basin Supplies in the Great Lakes. IAGLR 54th Conference on Great Lakes Research, May 30-June 3, Duluth, MN.
Creech CT, JP Selegean, TA Dahl (2011). Reducing Sediment Yields to Lake Superior: Case Studies from the Great Lakes Tributary Modeling Program. IAGLR 54th Conference on Great Lakes Research, May 30-June 3, Duluth, MN.
Dahl TA, JL Ryder, JP Selegean (2010). Non-Stationary Annual Peak Flows in the Lower Peninsula of Michigan; Potential Evidence for Climate Change Observed in the Mid-20th Century. American Geophysical Union Fall Meeting, December 15-19, San Francisco, CA.
AG Stone, MS Riedel, TA Dahl, JP Selegean (2010). Boardman River Existing-Conditions SIAM Model for Dam Removal Study. 2nd Joint Federal Interagency Conference, June 27-July 1, Las Vegas, NV.
Riedel MS, TA Dahl, JP Selegean (2010). Sediment Budget Development for the Great Lakes Region. 2nd Joint Federal Interagency Conference, June 27-July 1, Las Vegas, NV.
Creech CT, JP Selegean, TA Dahl (2010). Historic and Modern Sediment Yield from a Forested Watershed and its Impact on Navigation. 2nd Joint Federal Interagency Conference, June 27-July 1, Las Vegas, NV.
JP Selegean, RB Nairn, TA Dahl, CT Creech (2010). Building a better understanding of sediment issues through the application of a long-term fluvial and littoral sediment budget. 2nd Joint Federal Interagency Conference, June 27-July 1, Las Vegas, NV.
Creech CT, JP Selegean, RE McKeever, TA Dahl (2010). The Ontonagon River: A History of Sediment Yields in a Geologically Young Watershed. IAGLR 53rd Conference on Great Lakes Research, May 17-21, Toronto, ON.
Dahl TA, MA Kropfreiter, SJ Tule (2009). 150 Year Old Infrastructure vs. HEC-RAS: Modeling the Lower Fox River, WI. U.S. Army Corps of Engineers Infrastructure SystemsConference, July 20-24, Cleveland, OH.
Dahl TA, JP Selegean, MS Riedel (2009). A GIS-Based Channel Stability Tool for the Great Lakes Region. U.S. Army Corps of Engineers Infrastructure Systems Conference, July 20-24, Cleveland, OH.
Dahl TA, MH Mahoney, JP Selegean (2008). An Observed Regime Shift in SE Michigan Bankfull (Q1.5) Streamflow Records. American Geophysical Union Fall Meeting, December 15-19, San Francisco, CA.
Dahl TA and JP Selegean (2008). The Right Tool for the Job: Creating a Full Suite of Models to Help the Clinton River Decrease Sediment Loading. IAGLR 51st Conference on Great Lakes Research, May 19-23, Peterborough, ON.
McPherson MM and TA Dahl (2008). Modeling the Routing of Water Through the Upper Lakes Using HEC-RAS. IAGLR 51st Conference on Great Lakes Research, May 19-23, Peterborough, ON.
Dahl TA and JP Selegean (2007). Tools to Study Sediment Transport in the St. Joseph River Watershed. State of Lake Michigan Conference, 27-28 September, Traverse City, MI.
Dahl TA and JP Selegean (2007). Modeling Sediment Yield and Flow in a Rapidly Urbanizing Watershed. U.S. Army Corps of Engineers Infrastructure Systems Conference, June 25-29, Detroit, MI.
Selegean JP, TA Dahl, RB Nairn (2007). The Quantification of Sediment Production, Transport and Deposition with Numerical Models. IAGLR 50th Conference on Great Lakes Research, May 28-June 1, State College, PA.
Riedel MS, D Vujisic, JP Selegean, AG Stone, TA Dahl (2007). A GIS Based Streambank Stability Tool for the Great Lakes Region. IAGLR 50th Conference on Great Lakes Research, May 28-June 1, State College, PA.
Stone AG, MS Riedel, TA Dahl, JP Selegean, D Vujisic (2007). Application and Validation of a GIS Based Streambank Stability Tool for the Great Lakes Region. IAGLR 50th Conference on Great Lakes Research, May 28-June 1, State College, PA.
Dahl TA, M Jonas, P O’Brien, JP Selegean (2006). Two-Stage Agricultural Ditch – Hydraulic and Sediment Impacts (Sebewaing River Basin, Michigan). American Geophysical Union Fall Meeting, December 11-15, San Francisco, CA.
Selegean JP and TA Dahl (2006). Modeling Great Lakes Sediments from Source to Sink. NSF MARGINS Conference on Teleconnections Between Source and Sink in Sediment Dispersal Systems. September 17-21, Eureka, CA.
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Interactions between land use change and groundwater availability; sustainability of water resources in the face of change
My work focuses on the ways in which changes on the land surface – particularly changes in management practices – affect aquifers. Myriad feedbacks exist between groundwater availability and the human decisionmaking process. Through my work on the High Plains Aquifer, I am learning to approach complex “coupled human and natural systems” from an interdisciplinary modeling perspective.
2012 American Geophysical Union Conference: “A New Assessment of Groundwater Levels of the High Plains Aquifer: From Predevelopment to Current” (poster)
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My research areas are electrical and electromagnetic methods of geophysics and their applications on hydrogeophysics, archaeogeophysics, environmental geophysics. My Ph.D. thesis research focuses on characterization of a highly heterogeneous aquifer using novel characterization methods such as full-resolution 3D GPR and DPP hydraulic conductivity tool. My other research interests are data processing, numerical solutions, modeling, and simulation since I personally like advanced math and coding in Matlab. For more information see my personal website.
My interests include geophysics and hydrogeology with an application to engineering and environmental issues. Current work includes the development of a field data database and an analysis of soil moisture and temperature variability in the shallow subsurface. I will pursue an advanced degree in either hydrogeology or hydrogeophysics in Fall 2011.
B.S. Geological Sciences, Concentration in Geophysics, Michigan State University, May 2011.
SAGE – Summer of Applied Geophysical Experience 2010, Los Alamos, NM.
Study Abroad – Ecology of the Mountains 2010, Lesser Himalayas, India.
bbchrisman@gmail.com
chrisma8@msu.edu
I take an interdisciplinary approach in researching issues related to water quality and quantity. More specifically, I use the principles of landscape ecology together with biogeochemistry and systems modeling to investigate ecosystem services in a changing landscape. My current research evaluates temporal shifts in coupled human and natural systems. To this end, I am using both multivariate statistical techniques and mechanistic models to investigate the role of historical land use/cover in driving physical, chemical, and biological characteristic currently observed in lake, stream, and wetland ecosystems.
Overall, my goal is to conduct research for the purpose of guiding ecosystem management, with ecosystem type unconstrained by salinity or water residence time. One line of research which I plan on pursuing is the concept of land use/cover legacies.
My research interests are in the application and improvement of near-surface geophysical methods for hydrological and engineering problems, sedimentology and stratigraphy, issues of environmental change, and characterization of soils.
Education
BS 2009, Western Michigan University, Geology
Recent Abstracts
Eustice, BP, DW Hyndman, RL Van Dam, WW Wood, (2010), Modeling and Electrical Imaging of Natural Free Convection Induced by Saline Recharge in a Coastal Sabkha, AGU Fall Meeting, San Francisco
At the age of 15, I watched the Cuyahoga River burn from my back yard. From that point on, I knew I wanted to be in the environmental field. After thirty years of professional experience and management in the environmental field, I elected to return to school and work on my doctorate so that I could bring real world experiences into the classroom.
As a consultant, I’ve had the opportunity to observe the impact of contaminated groundwater on various surface water bodies. In many cases, the impacts were not as anticipated. Surface water quality should be directly linked to both the sources of contaminants and the water body’s capacity to interact with and adjust to changing environmental (hydrologic and geochemical) conditions. Unfortunately, the dynamics of surface and ground-water interactions are very complex and not well understood.
My research focuses on local-scale hydrology at a point bar system located on a tributary of the Muskegon River, where I am examining the relationships among groundwater, surface water, porosity, soil moisture, and hydraulic conductivity. To determine these local relationships, I developed a network of 20 monitoring wells, 2 stream gauging stations, four soil moisture stations and a weather station to collect the appropriate hydrologic data for my dissertation.
M.Engineer, Geologic Engineering, Colorado School of Mines, Golden, Colorado, 1983.
B.S., Geology, University of Cincinnati, Cincinnati, Ohio, 1975.
Bove, J. and L. M Cooper, 1990. “An Introduction to Geosynthetics: Fundamentals, Applications, and Design,” Short Course, 33rd Annual Meeting, Association of Engineering Geologists, Pittsburgh, PA.
Cooper, L. M. and R. Hosfeld, 1986. “Investigation and Remediation of a Pond Contaminated by Diesel Fuel,” 7th National Conference on Management of Uncontrolled Hazardous Waste Sites, HMCRI, Washington, D.C.
Cooke, S. D.; Cooper, L. M and C. W Byrer, 1984. “A Site Characterization and Environmental Monitoring Approach for UCG Research and Development in Bituminous Coals,” 10th Annual UCG Symposium, DOE.
Howard, J. F., Komar, C. A. and L. M. Cooper, Editors, 1984. “Workshop on Remote Sensing/ Lineament Applications for Energy Extraction,” U.S. Department of Energy DOE/METC/84-9, Morgantown, WV
Cooper, L. M., 1983, “Applications of Geophysics to Hydrogeologic Studies in Routt and Jackson Counties, Colorado,” Colorado School of Mines, Golden, Colorado, prepared as an open-file report for the U.S. Geological Survey, Lakewood, Colorado. (Master’s Thesis)
Cooper, L. M., 2007, “Remediation of a “Free-Product” Contaminant Plume at a Leaking UST Site using In-Situ Bio-Remediation and SVE,” American Institute of Professional Geologists, Lansing, Michigan.
Cooper, L. M., 2004. “Dancing with Brownfields: The Zephyr Oil Story,” Association of Engineering Geologists Annual Meeting, Dearborn, Michigan.
Cooper, L. M., 1998. “Remediation of a Chlorinated Solvent Plume,” Association of Engineering Geologists Annual Meeting, Seattle, Washington.
Cooper, L. M., 1996. “Quality Control and Quality Assurance in Environmental Consulting,” Association of Engineering Geologists Annual Meeting, New Brunswick, New Jersey.
I first started my career as geologist knowing that I wanted to major in either environmental geology or hydrogeology in my eighth grade year of middle school at my home town, Spring Lake, MI. I went on through high school never changing what I wanted to be all the way through high school and college by which I eventually graduated from Central Michigan University with a B.S. with a major in Environmental Geology and another major in Environmental Science.
In the fall of 2005 I applied to Michigan State University after being in contact with Dr. Hyndman (my current advisor). I was impressed on how close the research group here was and how closely everyone worked together. There seemed to be an abundance of research topics that I could have worked with ranging from hydrology to near surface geophysics. Two years later I am completing my thesis on Land use effects on sediment and nutrient transport. I have also had the chance to present my research from other projects I have done while at MSU at the American Geophysical Union (held in San Francisco) for three consecutive years and once at GSA in Salt Lake City.
My experience while working in this lab as a hydrologist and Environmental Geophysicist has befitted my career. The skill sets, knowledge, and working synergy that I have come to enjoy have been my number one reason I would recommend this lab to anyone. The unique combinations of modeling capabilities, hydrology related field work, near-surface geophysical methods, and the critical thinking skills that one can develop as a Master’s or PhD will provide a valuable skill set to any company, research group, or institution/agency.
I am currently interviewing for jobs out in the Seattle, Atlanta, and Denver areas. After graduating with my M.S., I hope to work a few years in the consulting industry and then go back for my PhD.
]]>My research has focused on regional-scale landscape hydrology, examining the terrestrial hydrologic cycle and its relationship to climate, vegetation and biogeochemical cycles. I c0-developed the Landscape Hydrology Model (LHM), an integrated modeling tool to study large-scale, fine-resolution hydrologic processes using modest computational tools. Partly due to the challenge of providing fine-resolution inputs at regional scales, and because of the importance of the questions at those scales I have become involved in all aspects of “big data” discovery, processing, and analysis. This includes using machine learning algorithms to yield insights into environmental phenomena and to better prepare inputs for process-based models. I am also (as my photo suggests) actively involved in field data collection, and view this as a critical and foundational aspect of hydrologic sciences.
I have spent most of my research career as part of large, interdisciplinary research teams, working at all levels from undergraduate to Co-PI. Along the way I developed a deep appreciation of the value of interdisciplinary research, and a recognition that most of society’s great questions lie not within the walls of a discipline, but at their intersections. In the last few years I and other members of the Hydrogeology Lab have built strong collaborations with climate scientists, ecologists, agronomists, socio-behavioral scientists, economists, and engineers. These collaborative relationships are driving forward the next generation of research here at MSU and around the world.