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Research Output 1995 2019

2019
1 Citation (Scopus)

Change in fish community composition following weir removal, field observations, and physical habitat simulations

Im, D., Choi, B. & Choi, S. U., 2019 Sep 1, In : River Research and Applications. 35, 7, p. 1062-1071 10 p.

Research output: Contribution to journalArticle

weir
Fish
community composition
habitat
fish
Korean Peninsula
case studies
habitat
habitats
methodology

Ecological evaluation of weir removal based on physical habitat simulations for macroinvertebrate community

Kim, S. K. & Choi, S. U., 2019 Nov, In : Ecological Engineering. 138, p. 362-373 12 p.

Research output: Contribution to journalArticle

weir
macroinvertebrate
Functional groups
functional group
habitat
2018

Estimation of environmental flow in a stream using physical habitat simulation

Kim, S. K. & Choi, S-U., 2018 Sep 1, Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018. Hambali, R., Ahmad, J. S. M., Benazir, Karlina, Setiawan, H., Warniyati, W., Legono, D., Olii, M. R. & Hairani, A. (eds.). Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada, p. 617-623 7 p. (Proceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hydraulics
habitat
simulation
hydraulics
Fish
2 Citations (Scopus)

Impacts of hydropeaking and thermopeaking on the downstream habitat in the Dal River, Korea

Choi, B. & Choi, S-U., 2018 Jan 1, In : Ecological Informatics. 43, p. 1-11 11 p.

Research output: Contribution to journalArticle

Korean Peninsula
water temperature
Rivers
dams (hydrology)
Water
3 Citations (Scopus)

Physical habitat simulation for a fish community using the ANFIS method

Im, D., Choi, S-U. & Choi, B., 2018 Jan 1, In : Ecological Informatics. 43, p. 73-83 11 p.

Research output: Contribution to journalArticle

Physical Simulation
Adaptive Neuro-fuzzy Inference System
Fuzzy inference
Fish
habitat
1 Citation (Scopus)

Prediction of suitable feeding habitat for fishes in a stream using physical habitat simulations

Kim, S. K. & Choi, S-U., 2018 Oct 10, In : Ecological Modelling. 385, p. 65-77 13 p.

Research output: Contribution to journalArticle

habitat
fish
prediction
simulation
macroinvertebrate
2017
3 Citations (Scopus)

Impact of hydropeaking on downstream fish habitat at the Goesan Dam in Korea

Choi, S. U., Kim, S. K., Choi, B. & Kim, Y., 2017 Sep 1, In : Ecohydrology. 10, 6, e1861.

Research output: Contribution to journalArticle

dams (hydrology)
Korean Peninsula
dam
habitat
fish

Physically based probabilistic analysis of sediment deposition in open channel flow

Oh, J., Choi, J., Choi, S-U. & Tsai, C. W., 2017 May 1, In : Journal of Hydraulic Engineering. 143, 5, 04016106.

Research output: Contribution to journalArticle

Open channel flow
open channel flow
Sediments
probability density function
Probability density function
5 Citations (Scopus)

Prediction of local scour around bridge piers using the ANFIS method

Choi, S. U., Choi, B. & Lee, S., 2017 Feb 1, In : Neural Computing and Applications. 28, 2, p. 335-344 10 p.

Research output: Contribution to journalArticle

Bridge piers
Scour
Fuzzy inference
Neural networks
Piers
2016
3 Citations (Scopus)
submerged vegetation
Turbulence
turbulence
Statistics
submergence
9 Citations (Scopus)

Prediction of time-dependent local scour around bridge piers

Choi, S. U. & Choi, B., 2016 Mar 1, In : Water and Environment Journal. 30, 1-2, p. 14-21 8 p.

Research output: Contribution to journalArticle

Bridge piers
Scour
pier
scour
prediction
2015
2 Citations (Scopus)

A quasi-2D and quasi-steady hydraulic model for physical habitat simulations

Choi, S. U., Jung, S. & Kim, S. K., 2015 Mar 1, In : Ecohydrology. 8, 2, p. 263-272 10 p.

Research output: Contribution to journalArticle

physical models
fluid mechanics
hydraulics
habitat
habitats
17 Citations (Scopus)

Assessment of coastal ecosystem services for conservation strategies in South Korea

Chung, M. G., Kang, H. & Choi, S. U., 2015 Jul 29, In : PloS one. 10, 7, 0133856.

Research output: Contribution to journalArticle

Republic of Korea
South Korea
ecosystem services
Ecosystems
Ecosystem
7 Citations (Scopus)

Assessment of total sediment load in rivers using lateral distribution method

Choi, S. U. & Lee, J., 2015 Sep 1, In : Journal of Hydro-Environment Research. 9, 3, p. 381-387 7 p.

Research output: Contribution to journalArticle

Sediments
Rivers
river
suspended load
sediment
4 Citations (Scopus)

Improving predictions made by ANN model using data quality assessment: An application to local scour around bridge piers

Choi, S. U., Choi, B. & Choi, S., 2015 Nov, In : Journal of Hydroinformatics. 17, 6, p. 977-989 13 p.

Research output: Contribution to journalArticle

Bridge piers
Scour
pier
scour
data quality
21 Citations (Scopus)

Optimal atmospheric correction for above-ground forest biomass estimation with the ETM+ remote sensor

Nguyen, H. C., Jung, J., Lee, J., Choi, S. U., Hong, S. Y. & Heo, J., 2015 Jul 31, In : Sensors (Switzerland). 15, 8, p. 18865-18886 22 p.

Research output: Contribution to journalArticle

remote sensors
atmospheric correction
Steam
biomass
Biomass
8 Citations (Scopus)

Parametric assessment of water use vulnerability variations using SWAT and fuzzy TOPSIS coupled with entropy

Won, K., Chung, E. S. & Choi, S. U., 2015 Jan 1, In : Sustainability (Switzerland). 7, 9, p. 12052-12070 19 p.

Research output: Contribution to journalArticle

entropy
water use
vulnerability
Entropy
Rivers
11 Citations (Scopus)

Physical habitat simulations of the Dal River in Korea using the GEP Model

Choi, B. & Choi, S. U., 2015 Oct 1, In : Ecological Engineering. 83, p. 456-465 10 p.

Research output: Contribution to journalArticle

Rivers
habitat
river
simulation
Composite materials
9 Citations (Scopus)

Prediction of composite suitability index for physical habitat simulations using the ANFIS method

Jung, S. H. & Choi, S. U., 2015 Jun 10, In : Applied Soft Computing Journal. 34, p. 502-512 11 p.

Research output: Contribution to journalArticle

Rivers
Composite materials
Monitoring
Hydraulic models
Watersheds
3 Citations (Scopus)
river bed
sand
prediction
sediment
suspended sediment
2 Citations (Scopus)
Open channel flow
open channel flow
Sediments
Turbulence
sediment
7 Citations (Scopus)

Robust priority for strategic environmental assessment with incomplete information using multi-criteria decision making analysis

Park, D., Kim, Y., Um, M. J. & Choi, S. U., 2015 Jan 1, In : Sustainability (Switzerland). 7, 8, p. 10233-10249 17 p.

Research output: Contribution to journalArticle

decision making criterion
strategic environmental assessment
dam construction
Dams
Decision making
18 Citations (Scopus)

The effect of particle size on thermal conduction in granular mixtures

Lee, J., Yun, T. S. & Choi, S. U., 2015 Jan 1, In : Materials. 8, 7, p. 3975-3991 17 p.

Research output: Contribution to journalArticle

Particle size
Thermal conductivity
Rubber
Tires
Insulating materials
24 Citations (Scopus)

The Regulation by Phenolic Compounds of Soil Organic Matter Dynamics under a Changing Environment

Min, K., Freeman, C., Kang, H. & Choi, S. U., 2015 Jan 1, In : BioMed Research International. 2015, 825098.

Research output: Contribution to journalReview article

Biological materials
Soil
Soils
Carbon
Decomposition
4 Citations (Scopus)

Transferability of monitoring data from neighboring streams in a physical habitat simulation

Choi, B., Choi, S. U. & Kang, H., 2015 Jan 1, In : Water (Switzerland). 7, 8, p. 4537-4551 15 p.

Research output: Contribution to journalArticle

habitat
Ecosystem
monitoring
simulation
Monitoring
2013

Hydraulic Modelling of Floodplain Vegetation in Korea: Development and Applications

Woo, H. & Choi, S-U., 2013 Jan 1, Ecohydraulics: An Integrated Approach. wiley, p. 293-307 15 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hydraulics
2012
5 Citations (Scopus)

Numerical prediction of morphological change of straight trapezoidal open-channel

Choi, S. U. & Joung, Y., 2012 May 1, In : Journal of Hydro-Environment Research. 6, 2, p. 111-118 8 p.

Research output: Contribution to journalArticle

prediction
Topography
Shear stress
Numerical models
Surface roughness
2011
24 Citations (Scopus)

Changes of river morphology and physical fish habitat following weir removal

Im, D., Kang, H., Kim, K. H. & Choi, S. U., 2011 Jun 1, In : Ecological Engineering. 37, 6, p. 883-892 10 p.

Research output: Contribution to journalArticle

weir
Fish
Rivers
habitat
fish

Guest editorial

Choi, S. U., 2011 Jan 1, In : International Journal of River Basin Management. 9, 3-4, 1 p.

Research output: Contribution to journalArticle

Impact of floodplain vegetation on morphological process in the straight compound open-channel: A numerical study

Choi, S-U. & Bae, H., 2011 Jan 1, 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. International Association for Hydro-Environment Engineering and Research (IAHR), p. 3427-3433 7 p. (34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

floodplain
bedload
vegetation
Drag
Numerical models
2010
51 Citations (Scopus)

A two-layer approach for depth-limited open-channel flows with submerged vegetation

Yang, W. & Choi, S. U., 2010 Aug 1, In : Journal of Hydraulic Research. 48, 4, p. 466-475 10 p.

Research output: Contribution to journalArticle

submerged vegetation
Open channel flow
open channel flow
Suspended sediments
Surface roughness
3 Citations (Scopus)

Direct numerical simulation of low Reynolds number flows in an open-channel with sidewalls

Joung, Y. & Choi, S. U., 2010 Mar 1, In : International Journal for Numerical Methods in Fluids. 62, 8, p. 854-874 21 p.

Research output: Contribution to journalArticle

Open Channel
Secondary Flow
Secondary flow
Low Reynolds number
Direct numerical simulation
2009
7 Citations (Scopus)
backwater
partial pressure
Surface waters
Vietnam
Partial pressure
17 Citations (Scopus)
Geographic information systems
Rivers
GIS
curvature
Secondary flow
3 Citations (Scopus)

Depth-avegraged modeling of vegetated open-channel flows using finite element

Kim, T. B. & Choi, S. U., 2009 Jan 1, Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS. Springer-Verlag Berlin Heidelberg, p. 411-416 6 p. (Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open channel flow
Galerkin methods
Rivers
Computer simulation
Water levels
32 Citations (Scopus)
submerged vegetation
Open channel flow
open channel flow
Shear stress
Turbulence

Mean and turbulence strutures of open-channel flows with submerged vegetation

Yang, W. & Choi, S. U., 2009 Jan 1, Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS. Springer-Verlag Berlin Heidelberg, p. 429-434 6 p. (Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open channel flow
Turbulence
Shear stress
Anemometers
Polyethylenes
3 Citations (Scopus)

Scalar flux modeling of solute transport in open channel flows: Numerical tests and effects of secondary currents

Kang, H. & Choi, S. U., 2009 Dec 28, In : Journal of Hydraulic Research. 47, 5, p. 643-655 13 p.

Research output: Contribution to journalArticle

Open channel flow
Solute transport
open channel flow
solute transport
Fluxes
3 Citations (Scopus)

Turbulence modeling of solute transport in open-channel flows over submerged vegetation

Kang, H. & Choi, S. U., 2009 Jan 1, Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS. Springer-Verlag Berlin Heidelberg, p. 674-679 6 p. (Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open channel flow
Solute transport
Turbulence
Computer simulation
Advection
2008
5 Citations (Scopus)

Investigation of twin vortices near the interface in turbulent compound open-channel flows using DNS data

Joung, Y. & Choi, S. U., 2008 Nov 26, In : Journal of Hydraulic Engineering. 134, 12, p. 1744-1756 13 p.

Research output: Contribution to journalArticle

Open channel flow
open channel flow
Direct numerical simulation
vortex
Shear stress

Recent advancements in river flow modeling

Woo, H., Choi, S. U. & Kim, W., 2008 Dec 1, World Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008. (World Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008; vol. 316).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

flow modeling
river flow
Rivers
Open channel flow
open channel flow

Reynolds stress modeling of turbulent open-channel flows

Choi, S. U. & Kang, H., 2008 Dec 1, Water Resources Research Progress. Nova Science Publishers, Inc., p. 351-414 64 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

open channel flow
modeling
turbulence
finite volume method
turbulent diffusion
2007

An experimental study of local scour around V-deflector over fine-grained bed

Yu, D., Choi, S. U. & Woo, H., 2007 Dec 1, In : Water International. 32, SUPPL. 1, p. 786-797 12 p.

Research output: Contribution to journalArticle

scour
experimental study
Froude number
shelter
dry season
30 Citations (Scopus)

Direct numerical simulation of turbulent flow in a square duct: Analysis of secondary flows

Joung, Y., Choi, S. U. & Choi, J. I., 2007 Feb 1, In : Journal of Engineering Mechanics. 133, 2, p. 213-221 9 p.

Research output: Contribution to journalArticle

Secondary flow
Direct numerical simulation
Ducts
Turbulent flow
Momentum transfer

Non-linear k-ε model for open-channel flows over sand ridges and troughs

Choi, S. U., Park, M. & Kang, H., 2007 Dec 1, 9th International Symposium on Fluid Control Measurement and Visualization 2007, FLUCOME 2007. p. 963-974 12 p. (9th International Symposium on Fluid Control Measurement and Visualization 2007, FLUCOME 2007; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open channel flow
Sediments
Vortex flow
Sand
Turbulence models
7 Citations (Scopus)
Open channel flow
Suspended sediments
open channel flow
Sediment transport
suspended sediment
2006
5 Citations (Scopus)

2D finite element modeling of bed elevation change in a curved channel

Choi, S. U., Kim, T. B. & Min, K. D., 2006 Dec 1, River, Coastal and Estuarine Morphodynamics: RCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. p. 737-744 8 p. (River, Coastal and Estuarine Morphodynamics: RCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Numerical models
modeling
Galerkin method
shallow-water equation
Galerkin methods

Impact of floodplain vegetation on the shear layer at the interface in 1d model for compound open-channel flows

Choi, S. U., Park, M. & Kang, H., 2006 Jan 1, Advances in Geosciences Volume 4: Hydrological Science (HS). World Scientific Publishing Co., p. 123-128 6 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

open channel flow
channel flow
floodplain
eddy
viscosity
29 Citations (Scopus)
Open channel flow
open channel flow
Turbulence
turbulence
flow structure