@article{brilli_stark_castro-bolinaga_2024, title={Relating Geotechnical Sediment Properties and Erodibility at a Sandy Beach}, volume={150}, ISSN={["1943-5460"]}, url={https://doi.org/10.1061/JWPED5.WWENG-2016}, DOI={10.1061/JWPED5.WWENG-2016}, abstractNote={Geotechnical sediment properties, morphological change, and hydrodynamics were measured as part of the During Nearshore Event Experiment (DUNEX) in October 2021 at the sandy Atlantic side beach in Duck, North Carolina. In this study, direct relationships were explored between in situ soil properties and direct erodibility measurements in the context of morphological change. Moisture content, grain size, total density, relative density, void ratio, and sediment strength were compared to bed-level change using ground-based LiDAR and erodibility parameters from laboratory jet erosion tests (JETs) conducted along a cross-shore transect stretching from the dune toe to the lower intertidal zone. Directly relating changes in sediment properties to changes in morphology from LiDAR proved inconclusive due to the complex interactions between sediments, hydrodynamics, and morphology, even on a local scale, but initial observations and possibly impacting factors were discussed. Void ratio and total unit weight correlated well with the detachment rate coefficient from JETs, with denser sediments testing as less erodible. In situ sediment strength measurements related—as expected—to total unit weight, void ratio, and water content, with increases in firmness factor associated with increases in total unit weight, void ratio, and water content. These strength measurements were also found to have a correlation with the detachment coefficient from the JET, with stronger/firmer sediments being less erodible than weaker ones.}, number={4}, journal={JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING}, author={Brilli, Nicola C. and Stark, Nina and Castro-Bolinaga, Celso}, year={2024}, month={Jul} }
 @article{nguyen_ore_castro-bolinaga_hall_young_2024, title={TOWARDS AUTONOMOUS, OPTIMAL WATER SAMPLING WITH AERIAL AND SURFACE VEHICLES FOR RAPID WATER QUALITY ASSESSMENT}, volume={67}, ISSN={["2769-3287"]}, DOI={10.13031/ja.15796}, abstractNote={Highlights A practical workflow for optimizing sampling tours for a team of surface and aerial vehicles was developed. Proposed workflow considers unique sensing capabilities of surface vehicles when assigning sampling locations. Likely optimal tours can be found in less than 30 s for practical water quality sampling requirements. Abstract. Most current marine aquaculture operations are located in coastal estuarine areas within one mile of the shoreline, and water quality in these production areas can quickly become unfavorable due to hydrodynamic processes and excessive runoff. The deployment of autonomous, robotic systems can improve the speed and spatiotemporal resolution of water sampling and sensing in mariculture production areas to assess water quality in the context of food safety. Specifically, teams of both aerial and surface vehicles can be deployed simultaneously to capitalize on the benefits of each system; however, a method to optimally design a feasible sampling tour for each robot is needed to maximize sample capacity and ensure efficient water sampling missions. This research brief presents the problem formulation and a solution method to determine optimal tours for a team of aquatic surface and aerial vehicles while considering different vehicle sampling capacities and endurance constraints. This method was implemented to design sampling missions of 15, 20, and 30 samples in both a 0.25 km2 and 3.9 km2 site, using sampling capacity and endurance constraints corresponding to real-world robots used for water sampling in mariculture environments. Results indicate that this optimization problem can be solved in near-real time in the field and yields feasible sampling tours for surface and aerial vehicles under different constraints. This work is a practical step towards developing teams of collaborative robots to persistently monitor adverse mariculture growing conditions so producers can implement data-driven, timely management strategies. Keywords: Mariculture, Robotics, Traveling salesperson problem, Vehicle routing.}, number={1}, journal={JOURNAL OF THE ASABE}, author={Nguyen, Anh and Ore, John -Paul and Castro-Bolinaga, Celso and Hall, Steven G. and Young, Sierra}, year={2024}, pages={91–98} }
 @article{moursi_youssef_poole_castro-bolinaga_chescheir_richardson_2023, title={Drainage water recycling reduced nitrogen, phosphorus, and sediment losses from a drained agricultural field in eastern North Carolina, USA}, volume={279}, ISSN={["1873-2283"]}, DOI={10.1016/j.agwat.2023.108179}, abstractNote={An experimental study was conducted to evaluate the effect of drainage water recycling (DWR) on reducing nitrogen (N), phosphorus (P), and sediment losses from agricultural fields to downstream surface water bodies. The two-year study (May 2019-April 2021) was conducted at an agricultural field in eastern North Carolina, U.S.A. A reservoir existed at the site was used to store subsurface drainage and surface runoff water during wet periods and provide supplemental irrigation during dry periods of the crop growing season. On average, the reservoir retained 14% of received inflow, with a higher flow reduction in the dry year (2019–2020; 29%) than the wet year (2020–2021; 8%). The hydraulic retention time (HRT) for the reservoir was 33.8 days for the dry year and 12.4 days for the wet year. The reservoir significantly reduced the loadings of N by 47%, P by 30% and sediment by 87%. Nitrogen load reduction was primarily driven by nitrate assimilation, the dominant form of N in the reservoir. Phosphorus load reduction was attributed to Orthophosphate assimilation as the reservoir released more particulate P than received. Reductions in both water flow and species concentration contributed to nutrient load reductions. Results suggested the removal efficiency of the reservoir would be highest during the summer and early fall months when the reservoir has a smaller water volume (due to irrigation), longer HRT, and warmer temperature. This study clearly demonstrated the potential of DWR for significantly reducing N, P, and sediment losses from agricultural land to receiving surface water. Further research is needed to investigate the physical, chemical, and biological processes that occur in the storage reservoir and affect the fate and transport of nutrients and sediment. The understanding of these processes will enable optimizing the treatment efficiency of DWR, which maximizes the system’s benefits and reduces construction cost.}, journal={AGRICULTURAL WATER MANAGEMENT}, author={Moursi, Hossam and Youssef, Mohamed A. and Poole, Chad A. and Castro-Bolinaga, Celso F. and Chescheir, George M. and Richardson, Robert J.}, year={2023}, month={Apr} }
 @article{hatley_shehata_sayde_castro-bolinaga_2023, title={High-Resolution Monitoring of Scour Using a Novel Fiber-Optic Distributed Temperature Sensing Device: A Proof-of-Concept Laboratory Study}, volume={23}, ISSN={1424-8220}, url={https://doi.org/10.3390/s23073758}, DOI={10.3390/s23073758}, abstractNote={Scour events can severely change the characteristics of streams and impose detrimental hazards on any structures built on them. The development of robust and accurate devices to monitor scour is therefore essential for studying and developing mitigation strategies for these adverse consequences. This technical note introduces a novel scour-monitoring device that utilizes new advances in the fiber-optic distributed temperature sensing (FO-DTS) technology. The novel FO-DTS scour-monitoring device utilizes the differential thermal responses of sediment, water, and air media to a heating event to accurately identify the locations of the interfaces between them. The performance of the device was tested in a laboratory flume under flow conditions with water velocities ranging from 0 m/s to 0.16 m/s. In addition, the effect of the measurement duration on the device’s measurement accuracy was also investigated. The FO-DTS scour-monitoring device managed to detect the sediment–water and water–air interfaces with average absolute errors of 1.60 cm and 0.63 cm, respectively. A measurement duration of fewer than 238 s was sufficient to obtain stable measurements of the locations of the sediment–water and water–air interfaces for all the tested flow conditions.}, number={7}, journal={SENSORS}, author={Hatley, Rebecca and Shehata, Mahmoud and Sayde, Chadi and Castro-Bolinaga, Celso}, year={2023}, month={Apr}, pages={3758} }
 @article{kassa_castro-bolinaga_guertault_fox_russell_brown_2023, title={Quantifying the Impact of Model Selection When Examining Bank Retreat and Sediment Transport in Stream Restoration}, volume={15}, ISSN={["2073-4441"]}, url={https://doi.org/10.3390/w15081448}, DOI={10.3390/w15081448}, abstractNote={The objective of this study was to assess the performance of form-based and process-based models, and of local-scale and reach-scale models, used to examine bank retreat and sediment transport in stream restoration. The evaluated models were the Bank Erosion Hazard Index (BEHI), Bank Assessment for Nonpoint Source Consequences of Sediment (BANCS), Bank Stability and Toe Erosion Model (BSTEM), and HEC River Analysis System (HEC-RAS 1D). Model-to-model assessments were conducted to quantify the impact of model selection when predicting applied stress and geomorphic change in a restored stream in North Carolina, USA. Results indicated that the mobility of the bed dictated model selection at the reach-scale. The process-based HEC-RAS 1D was needed to accurately analyze the sand-bed stream, predicting amounts of geomorphic change comparable to measured data and up to three orders of magnitude higher than those from local-scale models. At the local-scale, results indicated that the bank retreat mechanism and flow variability constrained model selection. The form-based BEHI and BANCS did not directly account for geotechnical failure nor capture severe floods, underpredicting amounts of geomorphic change by an order of magnitude when compared to the process-based BSTEM, and failing to characterize erosion potential and applied stresses after short-term morphodynamic adjustments.}, number={8}, journal={WATER}, author={Kassa, Kayla and Castro-Bolinaga, Celso and Guertault, Lucie and Fox, Garey A. A. and Russell, Periann and Brown, Emily D. D.}, year={2023}, month={Apr} }
 @article{castro-bolinaga_mittelstet_mankin_2023, title={STREAMBANK EROSION PHENOMENA AND UNDERSTANDING: CURRENT RESEARCH AND FUTURE DIRECTIONS}, volume={66}, ISSN={["2769-3287"]}, DOI={10.13031/ja.15613}, abstractNote={Highlights High rates of streambank erosion are detrimental to the stability and function of streams. This collection brings together six studies that represent key advances in streambank erosion research. Current research directions on streambank erosion, erodibility characterization, and sediment loading are presented. Future research directions and challenges related to high-frequency data collection and modeling are discussed. Abstract. Streams are in dynamic equilibrium with their environments, and as that environment is altered by human development and changing climate, streambank erosion is a common, but little understood, result. This article highlights the contributions of the special collection “Streambank Erosion, Sediment Dynamics, and Restoration (SER),” which assembled six studies that represent key advances in streambank erosion research, highlight current research in the field, and identify directions for future research. The studies in this special collection were grouped into three central themes: (1) streambank erosion monitoring, (2) streambank erodibility characterization, and (3) streambank erosion loading. In this article, key findings within each of these central themes are summarized, emphasizing the significant contributions of each study. Likewise, perspectives on future research directions are discussed, outlining important challenges that remain to be addressed. Overall, the studies in this special collection are unified in their overarching goal of improving quantitative and predictive understanding of streambank erosion phenomena. Keywords: Keywords., Erodibility Parameters, Jet Erosion Test, Monitoring, Sediment, Soil Erosion, Stabilization Practices, Streambank, Stream Restoration.}, number={5}, journal={JOURNAL OF THE ASABE}, author={Castro-Bolinaga, Celso and Mittelstet, Aaron and Mankin, Kyle}, year={2023}, pages={1223–1228} }
 @inproceedings{sharma_castro-bolinaga_nelson_2022, title={A reflectance-turbidity model to evaluate the propagation of fluvial sediment pulses following dam removals: A case study from the Elwha River, Washington, USA}, booktitle={Proceedings of the 39th IAHR World Congress}, author={Sharma, Abhinav and Castro-Bolinaga, Celso and Nelson, Natalie}, year={2022}, pages={938–945} }
 @article{consolvo_stark_castellanos_castro-bolinaga_hall_massey_2022, title={Effects of Shell Hash on Friction Angles of Surficial Seafloor Sediments near Oysters}, volume={148}, ISSN={["1943-5460"]}, url={https://doi.org/10.1061/(ASCE)WW.1943-5460.0000716}, DOI={10.1061/(ASCE)WW.1943-5460.0000716}, abstractNote={Oysters are hypothesized to affect the shear strength of nearby surficial seafloor sediment as fragments of oyster shells (shell hash) are typically more angular relative to sand particles alone, among other differences. Resistance to shearing is well characterized by the friction angle, which is estimated in this study from vacuum triaxial laboratory and portable free-fall penetrometer field tests. Friction angles of sediment with shell hash were higher relative to those of sediment without shell hash (via hydrochloric acid treatment) on average by about 19% (36.0°–30.2°, respectively). Triaxial confining pressures ranged between 2.1 and 49.0 kPa to simulate subtidal and intertidal aquatic conditions. Regularity (average of particle roundness and sphericity) values of sediment samples with shell hash were found to be less than those of samples without by about 6% (0.66 and 0.70, respectively), which indicates the particle shapes of the former are, overall, more angular and less spherical. Further study and methodology improvements are needed to decrease the approximate 9° friction angle discrepancy estimated from fieldand laboratory-based tests. Knowing oysters have the potential to increase sediment shearing resistance helps establish a pathway of how shellfish colonies may contribute to mitigating surficial erosion around coastal infrastructure. DOI: 10.1061/(ASCE)WW.1943-5460.0000716. This work is made available under the terms of the Creative Commons Attribution 4.0 International license, https://creativecommons.org/licenses/by/4.0/.}, number={5}, journal={JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING}, author={Consolvo, Samuel T. and Stark, Nina and Castellanos, Bernardo and Castro-Bolinaga, Celso F. and Hall, Steven and Massey, Grace}, year={2022}, month={Sep} }
 @article{fox_guertault_castro-bolinaga_swanson_2022, title={GUIDANCE ON APPLIED PRESSURE HEADS FOR QUANTIFYING COHESIVE SOIL ERODIBILITY WITH A JET EROSION TEST (JET)}, volume={65}, ISSN={["2769-3287"]}, DOI={10.13031/ja.14884}, abstractNote={
						Highlights
					}, number={6}, journal={JOURNAL OF THE ASABE}, author={Fox, Garey A. and Guertault, Lucie and Castro-Bolinaga, Celso and Swanson, Alexis}, year={2022}, pages={1443–1450} }
 @article{fox_guertault_castro-bolinaga_allen_bigham_bonelli_hunt_kassa_langendoen_porter_et al._2022, title={PERSPECTIVE: LESSONS LEARNED, CHALLENGES, AND OPPORTUNITIES IN QUANTIFYING COHESIVE SOIL ERODIBILITY WITH THE JET EROSION TEST (JET)}, volume={65}, ISSN={["2769-3287"]}, url={http://dx.doi.org/10.13031/ja.14714}, DOI={10.13031/ja.14714}, abstractNote={Highlights}, number={2}, journal={JOURNAL OF THE ASABE}, author={Fox, Garey A. and Guertault, Lucie and Castro-Bolinaga, Celso and Allen, Peter and Bigham, Kari A. and Bonelli, Stephane and Hunt, Sherry Lynn and Kassa, Kayla and Langendoen, Eddy J. and Porter, Erin and et al.}, year={2022}, pages={197–207} }
 @misc{swanson_castro-bolinaga_2022, title={Streambank Erodibility, Soil Physical Properties and Environmental Conditions for Streams within the North Carolina Piedmont Region}, url={https://knb.ecoinformatics.org/view/doi:10.5063/F1FB51C5}, DOI={10.5063/F1FB51C5}, publisher={KNB Data Repository}, author={Swanson, Alexis E. and Castro-Bolinaga, Celso F.}, year={2022} }
 @inproceedings{hatley_castro-bolinaga_sayde_lauffer_morgan_snead_2021, title={Can Fiber-Optic Distributed Temperature Sensing Improve Bridge Scour Monitoring?}, booktitle={Proceedings of the 10th International Conference on Scour and Erosion (ICSE-10), Rice, J., Liu, X., McIlroy, M., Sasanakul, I., and Xiao, M. (Eds)}, author={Hatley, Rebecca and Castro-Bolinaga, Celso and Sayde, Chadi and Lauffer, Matthew S. and Morgan, Stephen R. and Snead, Jerry M.}, year={2021}, pages={1108–1115} }
 @inproceedings{thomas_quiah_castro-bolinaga_massey_hall_stark_consolvo_2021, title={Do Oyster Colonies Influence Sediment Erodibility? A Hydro-morphodynamic Characterization of Intertidal Estuarine Reefs by Way of Jet Erosion Test and Acoustic Doppler Current Profiler}, booktitle={Proceedings of the 10th International Conference on Scour and Erosion (ICSE-10), Rice, J., Liu, X., McIlroy, M., Sasanakul, I., and Xiao, M. (Eds)}, author={Thomas, Melody and Quiah, Joanna and Castro-Bolinaga, Celso F. and Massey, Grace and Hall, Steve and Stark, Nina and Consolvo, Samuel}, year={2021}, pages={682–691} }
 @article{russell_mittelstet_joeckel_korus_castro-bolinaga_2021, title={IMPACT OF BANK STABILIZATION STRUCTURES ON UPSTREAM AND DOWNSTREAM BANK MOBILIZATION AT CEDAR RIVER, NEBRASKA}, volume={64}, ISSN={["2151-0040"]}, DOI={10.13031/trans.14551}, abstractNote={Highlights}, number={5}, journal={TRANSACTIONS OF THE ASABE}, author={Russell, Matthew V and Mittelstet, Aaron R. and Joeckel, R. Matthew and Korus, Jesse T. and Castro-Bolinaga, Celso F.}, year={2021}, pages={1555–1567} }
 @article{castro‐bolinaga_diplas_bodnar_2020, title={Modeling Hydro‐Morphodynamic Processes During the Propagation of Fluvial Sediment Pulses: A Physics‐Based Framework}, url={https://doi.org/10.1029/2020JF005722}, DOI={10.1029/2020JF005722}, abstractNote={Abstract}, journal={Journal of Geophysical Research: Earth Surface}, author={Castro‐Bolinaga, Celso F. and Diplas, Panayiotis and Bodnar, Robert J.}, year={2020}, month={Dec} }
 @inproceedings{subaqueous sediment characterization near oyster colonies by means of side-scan sonar imaging and portable free-fall penetrometer_2020, url={http://dx.doi.org/10.1061/9780784482810.074}, DOI={10.1061/9780784482810.074}, abstractNote={Bivalve colonies are being explored regarding their potential contribution to erosion and scour mitigation. As a first step toward this goal, the in situ conditions of a tidal riverbed around an oyster reef in the Piankatank River in Virginia were investigated using a rotary side-scan sonar (SSS) and a portable free-fall penetrometer (PFFP), among other methods. The field survey was performed on October 4 and 5, 2018, in an area with a radius of approximately 300 meters in the direct vicinity of an oyster reef. The SSS results showed a significant increase (>20%) in the standard deviation of the backscatter intensity where the oyster reef was located, indicating an increased surface roughness. The PFFP results suggested somewhat of an increase of in situ peak friction angles with increasing proximity to the oyster reef. This correlation can be explained by an expected increase in sharp oyster shell fragments near the oyster reef. Thus, the SSS offered clear imaging and a measure of increased surface roughness of the oyster reef, while the PFFP provided insights into changes in sediment behavior in the riverbed surrounding the reef.}, booktitle={Geo-Congress 2020}, year={2020}, month={Feb} }
 @article{castro-bolinaga_diplas_bodnar_2018, title={Sediment pulses and extreme events: Assessing the effect of storm characteristics on propagation dynamics}, volume={40}, ISSN={2267-1242}, url={http://dx.doi.org/10.1051/E3SCONF/20184006044}, DOI={10.1051/E3SCONF/20184006044}, abstractNote={The objective of this research is to assess the effect that extreme hydrologic events have on the propagation of sediment pulses in river corridors. These sediment-flow hazards are associated with large amounts of loose material suddenly deposited in rivers by the action of external factors or processes of natural or anthropogenic origin, including landslides, debris flows from tributaries, dam removal projects, and mining-related activities. Their occurrence is associated with severe channel aggradation and degradation, floodplain deposition, damage of infrastructure, and impairment of riparian and aquatic ecosystems. Given that the intensity of rainfall events have been significantly enhanced due to the influence of various human activities, sediment pulses are expected to become more common, with a more pronounced downstream impact as such climatic changes directly affect the magnitude, duration, and frequency of flows in riverine environments. Herein, numerical simulations were performed to characterize the propagation of a fine-grained sediment pulse for the 10-, 100-, and 500-yr storms. Results indicate that magnitude, frequency, and duration of the storms primarily influence the temporal variation of the total sediment discharge. In particular, these storm characteristics have a marked impact on the relationship between pre- and post-pulse conditions in the river channel, the dissipation of the pulse peak discharge, and the travel time of the pulse apex.}, journal={E3S Web of Conferences}, publisher={EDP Sciences}, author={Castro-Bolinaga, Celso and Diplas, Panayiotis and Bodnar, Robert}, editor={Paquier, A. and Rivière, N.Editors}, year={2018}, pages={06044} }
 @article{castro-bolinaga_fox_2018, title={Streambank Erosion: Advances in Monitoring, Modeling and Management}, volume={10}, ISSN={2073-4441}, url={http://dx.doi.org/10.3390/w10101346}, DOI={10.3390/w10101346}, abstractNote={The special issue “Streambank Erosion: Monitoring, Modeling, and Management” presents recent progress and outlines new research directions through the compilation of 14 research articles that cover topics relevant to the monitoring, modeling, and management of this morphodynamic process. It contributes to our advancement and understanding of how monitoring campaigns can characterize the effect of external drivers, what the capabilities and limitations of numerical models are when predicting the response of the system, and what the effectiveness of different management practices is in order to prevent and mitigate streambank erosion and failure. The present editorial paper summarizes the main outcomes of the special issue, and further expands on some of the remaining challenges within the realm of monitoring, modeling, and managing streambank erosion and failure. First, it highlights the need to better understand the non-linear behavior of erosion rates with increasing applied boundary shear stress when predicting cohesive soil detachment, and accordingly, to adjust the computational procedures that are currently used to obtain erodibility parameters; and second, it emphasizes the need to incorporate process-based modeling of streambank erosion and failure in the design and assessment of stream restoration projects.}, number={10}, journal={Water}, publisher={MDPI AG}, author={Castro-Bolinaga, Celso and Fox, Garey}, year={2018}, month={Sep}, pages={1346} }
 @article{wardinski_guertault_fox_castro-bolinaga_2018, title={Suitability of a Linear Model for Predicting Cohesive Soil Detachment during Jet Erosion Tests}, volume={23}, ISSN={1084-0699 1943-5584}, url={http://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0001690}, DOI={10.1061/(asce)he.1943-5584.0001690}, abstractNote={AbstractCohesive soil detachment is a complex process that is typically simulated using simplified mathematical models such as the linear excess shear stress equation or power laws. The assumption ...}, number={9}, journal={Journal of Hydrologic Engineering}, publisher={American Society of Civil Engineers (ASCE)}, author={Wardinski, K. M. and Guertault, L. and Fox, G. A. and Castro-Bolinaga, C. F.}, year={2018}, month={Sep}, pages={06018004} }
 @inproceedings{dynamic vs. quasi-steady modeling of morphodynamic processes: a physics-based selection criterion_2016, url={https://www.crcpress.com/River-Flow-2016-Iowa-City-USA-July-11-14-2016/Constantinescu-Garcia-Hanes/p/book/9781138029132}, booktitle={River Flow 2016}, year={2016} }
 @inproceedings{a coupled modelling effort to study the fate of contaminated sediments downstream of the coles hill deposit, virginia, usa_2015, url={http://dx.doi.org/10.5194/piahs-367-272-2015}, DOI={10.5194/piahs-367-272-2015}, abstractNote={Abstract. This paper presents the preliminary results of a coupled modelling effort to study the fate of tailings (radioactive waste-by product) downstream of the Coles Hill uranium deposit located in Virginia, USA. The implementation of the overall modelling process includes a one-dimensional hydraulic model to qualitatively characterize the sediment transport process under severe flooding conditions downstream of the potential mining site, a two-dimensional ANSYS Fluent model to simulate the release of tailings from a containment cell located partially above the local ground surface into the nearby streams, and a one-dimensional finite-volume sediment transport model to examine the propagation of a tailings sediment pulse in the river network located downstream. The findings of this investigation aim to assist in estimating the potential impacts that tailings would have if they were transported into rivers and reservoirs located downstream of the Coles Hill deposit that serve as municipal drinking water supplies.
                    }, booktitle={Proceedings of the International Association of Hydrological Sciences}, year={2015}, month={Mar} }
 @article{castro-bolinaga_diplas_2014, title={Hydraulic Modeling of Extreme Hydrologic Events: Case Study in Southern Virginia}, volume={140}, ISSN={0733-9429 1943-7900}, url={http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0000927}, DOI={10.1061/(ASCE)HY.1943-7900.0000927}, abstractNote={AbstractA comprehensive hydraulic modeling effort that was applied to two rural watersheds in southern Virginia is presented in this paper. The 10-, 50-, 100-, and 500-year storms and the probable maximum flood (PMF), are considered in this study with the objectives of assessing the impact of extreme hydrologic events through the generation of inundation maps, characterizing the sediment transport process under severe flooding conditions, and quantifying the uncertainty associated with the floodplains boundary roughness and its influence on the results. The employed methodology includes the construction of a river terrain model that combines geospatial and field-collected data, a calibration procedure based on regression equations and developed stage-discharge predictor curves, and unsteady flow simulations utilizing discharge hydrographs produced by an event-based hydrologic model. The results highlight the severe flooding conditions associated with the PMF and the necessity of considering it as the wors...}, number={12}, journal={Journal of Hydraulic Engineering}, publisher={American Society of Civil Engineers (ASCE)}, author={Castro-Bolinaga, Celso F. and Diplas, Panayiotis}, year={2014}, month={Dec}, pages={05014007} }
 @inproceedings{one-dimensional flood inundation modeling and sediment transport characterization for a potential mining site in southern virginia, usa_2014, booktitle={River Flow 2014}, year={2014} }
 @inproceedings{probable maximum flood inundation modeling: a case study in southern virginia_2012, booktitle={River Flow 2012}, year={2012} }