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Theses/Dissertations from 2016

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The formation of a rectilinear ridge network, Múlajökull, Iceland, Geoffrey Thomas Gadd

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Magnetic mineralogy and fabrics of small-scale glacial flutes, Múlajökull and Breiðamerkurjökull, Iceland, Libby Rosa Woodford Ives

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Improvement of numerical wind forecasts at wind turbine height for wind ramp events within the stable boundary layer, David E. Jahn

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Butterflies and bow echoes: addressing poor forecasts with ensemble simulations, John Lawson

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Major and trace element chemistry of zincian spinels as an exploration guide for metamorphosed massive sulfide deposits, Joshua Joseph O'Brien

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Evolution and characteristics of Madden-Julian Oscillation convection and clouds during DYNAMO, Cora Lynn Virgei

Theses/Dissertations from 2015

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Culturing benthic foraminifera to understand the effects of changing seawater chemistry and temperature on foraminiferal shell chemistry, Deserae Jennings

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Assessment of a balloon-borne buoy based measurement system with co-located tower and lidar measurements, Gregory Thrasher Matson

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Physical characteristics of drumlins, with implications for their formation, at an active drumlin field, Múlajökull, Iceland, Reba McCracken

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Developing a decadal-scale stalagmite record of hydroclimate and atmospheric variability for western Iberia (Portugal) during the Late Holocene, Diana Lynn Thatcher

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Marine Isotope Stage (MIS) 5 on the Umnak Plateau, Bering Sea (IODP Site U1339): diatom taxonomy, grain size and isotopic composition of marine sediments as proxies for primary productivity and sea ice extent, Derrick Ray Vaughn

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Strong wind shear events and improved numerical prediction of the wind turbine rotor layer in an Iowa tall tower network, Renee Amber Walton

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A comparison of QPF from WRF simulations with operational NAM and GFS output using multiple verification methods, Haifan Yan

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Natural fracture systems in Mowry Shale outcrops, Bighorn Basin, Wyoming, Ning Zhang

Theses/Dissertations from 2014

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An investigation of summer season cold fronts unassociated with an outflow boundary, Amanda Suzanne Black

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Assessing the style of advance and retreat of the Des Moines Lobe using LiDAR topographic data, Sarah Elizabeth Day

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Stable tellurium isotope variability in ore-forming systems: A theoretical and experimental approach, Andrew Fornadel

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Analysis of surface wind speed distributions: A look into NARCCAP models and ASOS data throughout the Contiguous United States, Rachel Hatteberg

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Limitations on the study of tile drainage using a distributed parameter hydrologic model and stable isotopes, Alexander Kevin Morrison

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The impact of radar data assimilation on warm season rainfall forecasts for use in hydrologic models: examples from extreme rain events in Iowa, Ben Moser

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WRF forecast skill of the Great Plains low level jet and its correlation to forecast skill of mesoscale convective system precipitation, Brian Joseph Squitieri

Theses/Dissertations from 2013

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Assimilation of AMSR-E snow water equivalent data in a lumped hydrological model, David Dziubanski

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Late summer Iowa rainfall events in weakly forced environments, Michael Edward Greve

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Further evaluation of improving probabilistic precipitation forecasts through the QPF-POP neighborhood relationship, Michael Charles Kochasic

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Assessment of a General Circulation Model with Modified Convection and Clouds, Zachary Alan Mangin

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Ramifications of spurious precipitation on MCSs modeled in the WRF, Timothy Edward Marquis

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Development of a future typical meteorological year with application to building energy use, Shannon Patton

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CWEX (Crop/Wind-Energy Experiment): Measurements of the interaction between crop agriculture and wind power, Daniel Andrew Rajewski

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Satellite-derived potential evapotranspiration for distributed hydrologic runoff modeling in Midwestern basins, Ryan Randall Spies

Theses/Dissertations from 2012

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Arctic daily temperature and precipitation extremes: Observed and simulated physical behavior, Justin Michael Glisan

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Applying dendrochronology visual crossdating techniques to the marine bivalve Arctica islandica and assessing the utility of master growth chronologies as proxies for temperature and secondary productivity in the Gulf of Maine, Shelly Mae Griffin

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Observations and Laboratory Simulations of Tornadoes in Complex Topographical Regions, Christopher D. Karstens

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A high-resolution geochemical proxy record of ∆14C and d18O in the Gulf of Maine using Arctica islandica shell carbonate, Erin Elizabeth Lower

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Assessing understanding of the nature of science and science self-efficacy in undergraduates involved in research in an introductory geology course, Elizabeth L. Moss

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An experimental study of ice-bed separation during glacial sliding, Benjamin Brett Petersen

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Prediction of convective morphology in near-cloud permitting WRF model simulations, Darren Victor Snively

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Interannual Variability of the Climate System, Jenq-Dar Tsay

Theses/Dissertations from 2011

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West African extreme daily precipitation in observations and stretched-grid simulations by CAM-EULAG, Abayomi Abiodun Abatan

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An evaluation of fall speed characteristics in bin and bulk microphysical schemes and use of bin fall speeds to improve forecasts of warm-season rainfall, Eric Anthony Aligo

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Pursuing a proxy for carbon cycling in the temperate North Atlantic: Investigation of the utility of Arctica islandica shell carbonate to millennial-scale dissolved inorganic carbon reconstructions, Erin Beirne

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Spatial analysis of Des Moines Lobe washboard moraines using LiDAR data, Mitchell Douglas Cline

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Improvements in numerical prediction of low level winds, Adam Joshua Deppe

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WRF simulations of mesoscale convective systems at convection-allowing resolutions, Jeffrey Dean Duda

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Multi-regime states of arctic atmospheric circulation, Brandon Joshua Fisel

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Investigation of MODIS snow cover products for use in streamflow prediction systems, Logan Ray Karsten

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Regional, extreme daily precipitation in NARCCAP simulations, Sho Kawazoe

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Multi-stage exhumation history of the Orocopia schist of southern California and southwestern Arizona, Rachel Elena Lishansky

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Misunderstandings of atmospheric carbon budgets: Advances toward remediation of a common student misconception, Collin Peter Reichert

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Numerical simulations of convective initiation failure: 12 June 2002 International H₂O Project case study, Justin Tyler Schultz

Theses/Dissertations from 2010

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Origin of the 610th Avenue Moraine of the Des Moines Lobe, Story County, Iowa, Suzanne Marie Ankerstjerne

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An experimental study of subglacial clast-bed contact forces, John Louis Byers

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The rainfall over tropical South America generated by multiple scale processes, Carlos Mauricio Carrillo

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Seasonal hydrologic trends in Iowa watersheds over the last half of the 20th century, Kayla Jo Conrad

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Lipid biomarker analysis and stable carbon isotope studies of biofilms in the Green Valley acid mine drainage site, Indiana, U.S.A., Shamik Das Gupta

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Evaluating and understanding the role of convective processes in general circulation model simulations of the Madden-Julian Oscillation, Liping Deng

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Quantitative aspects of vibratory mobilization and break-up of non-wetting fluids in porous media, Wen Deng

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Mineralogical, petrological, stable isotope, and fluid inclusion studies of the Palea Kavala reduced intrusion-related and the transitional Fakos porphyry Cu-Mo to epithermal Au-Te ore systems, Andrew Fornadel

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A study of the groundwater travel time distribution at a rural watershed in Iowa: A systems theory approach to groundwater flow analysis, Priyanka Jindal

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Understanding and Improving Cloud and Radiation Processes Using Year-Long Cloud-Resolving Model Simulations, Sunwook Park

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Comparison of a watershed model (SWAT) and a groundwater flow model (GFLOW) to simulate the hydrology of two agricultural watersheds in Iowa, Lucie Macalister Sawyer

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Improving probabilistic ensemble forecasts of convection through the application of QPF-POP relationships, Christopher John Schaffer

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The Geology and Geochemistry of Base Metal Sulfide Mineralization in the Foster River area, Northern Saskatchewan, Canada, Jeffrey Alan Steadman

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Temperature sensitivity of soil organic matter decomposition and the influence of soil carbon pools and attributes, Jin Zhang

Theses/Dissertations from 2009

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Computational geological approaches for assessing the diversity and ecological distribution of fossils, Bjorn-gustaf James Brooks

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Incorporating radiation inputs into an operational snowmelt model, Phillip John Butcher

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Predictability associated with convection-allowing and convection-parameterizing forecasts, Adam James Clark

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Improved understanding of near-ground winds in hurricanes and tornadoes, Christopher D. Karstens

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Near tropopause water vapor content and exchange processes, Thien Van Le

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A modeling approach for operational flash flood forecasting for small-scale watersheds in central Iowa, William Scott Lincoln

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Dynamics of ice flow and sediment transport at a polythermal glacier terminus: Storglaciaren, Sweden, Peter Lindsay Moore

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The InVEST volcanic concept survey: Assessment of conceptual knowledge about volcanoes among undergraduates in entry-level geoscience courses, Thomas Lyle Parham

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Jurassic and Cretaceous tectonic evolution of the southeast Castle Dome Mountains, southwest Arizona, Jonathan Hunter Reis

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Magnetic fabrics of drumlins of the Green Bay Lobe: Implications for the bed-deformation model of drumlin formation, Nicholas Paul Vreeland

Theses/Dissertations from 2008

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Fault slip velocities inferred from the spectra of ground motion, Nergis Ani Anil-Bayrak

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The geochemistry of carbonate-hosted Pb-Zn-Ag mineralization in the Lavrion District, Attica, Greece: fluid inclusion, stable isotope, and rare earth element studies, Todd Andrew Bonsall

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A hydrogeologic investigation of Ada Hayden Lake in Ames, Iowa, Evan Gary Christianson

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Interannual and intraseasonal variations of the energy budget over the polar regions and its climatic implications, Wan-Ru Huang

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The impact of upper-level flow regime change from spring to summer on QPF accuracy over the Midwest, Mark R. Loeffelbein

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Computational and wind tunnel studies of shelterbelts for reduction of wind flow and wind-induced loads on low-rise buildings, Sarah Ruth Schmidt

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Influences of midtropospheric perturbations on summer convective storms over the United States northern plains, Shih-Yu Wang

Theses/Dissertations from 2007

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Carbon isotopic composition of plant-derived organic matter in tropical sedimentary sequences as a recorder of Late Cretaceous-Early Paleogene changes in the carbon cycle, Humberto Carvajal-Ortiz

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Assessing estuarine health in Rookery Bay National Estuarine Research Reserve using a geochemical approach, Matthew Joseph Dvorak

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Effect of a hydrophobic layer on the upward movement of water under freezing conditions, Heath Gieselman

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Numerical model development and application of shelterbelt and windbreak flow during nocturnal stably stratified conditions, Daniel Andrew Rajewski

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Deformation of the Douglas till, northwestern Wisconsin, Jacqueline Rose Shumway

Theses/Dissertations from 2006

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Geochemical keys for the genesis of Proterozoic garnet-rich rocks and minor metasediment-hosted Pb-Zn-Ag mineralization, southern Curnamona Province, Australia, Adriana Heimann Ríos

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The role of physical scheme interactions on warm season rainfall forecasts , Isidora Jankov

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Laboratory studies of till deformation with implications for the motion and sediment transport of the Lake Michigan Lobe , Jason Fleming Thomason

Theses/Dissertations from 2005

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Quantitative prediction of the effect of vibrations on two-phase immiscible flow in porous media , Pavel P. Iassonov

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Changes in the regional hydroclimate of the Midwest United States between the 6-kBP and current climate , Francis Ochieng Otieno

Theses/Dissertations from 2004

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Aspects of interannual climate variability , Jin-Ho Yoon

Theses/Dissertations from 2003

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Studies of solute transport through fractured till in Iowa , Martin Frederick Helmke

Theses/Dissertations from 2000

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A new perspective on the regional hydrologic cycle over North and South America , Shu-Ping Weng

Theses/Dissertations from 1999

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Laboratory studies of till deformation with implications for Des Moines Lobe motion and sediment transport , Thomas Scott Hooyer

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Experimental investigation of the removal of hydrophobic organic compounds from two Iowa soils using food grade surfactants and recovery of used surfactants , Dal-Heui Lee

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Expansive mineral growth and concrete deterioration: a microstructural and microanalytical study , Hyomin Lee

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Experimental determination of phase relations of pyroxenes in the system Na2O-CaO-MgO-Al2O3-SiO2 (NCMAS) at 2.5 GPa and high temperatures , Zhenjie Wang

Theses/Dissertations from 1998

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Coupling of baroclinic waves, cumulus convection, and surface processes , Weidong Jiang

Theses/Dissertations from 1997

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Stratigraphy and sedimentology of the Hadar Formation Afar, Ethiopia , Tesfaye Yemane

Theses/Dissertations from 1996

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The role of magnesium in concrete deterioration , Guoliang Gan