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Mehmet Melih Koşucu
Hydraulics Division, Civil Engineering Faculty, Istanbul Technical University, 34469 Istanbul, Turkey

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Software
Published: 15 July 2021
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EPANET hydraulic solver is enhanced with Rigid Water Column Global Gradient Algorithm i.e. unsteady incompressible flow analysis algorithm of WDNs. Valve representation which produces resistance according to valve opening is defined on EPANET. In order to provide convergence globally Convergence Tracking Control Method is added to EPANET. The developments and additions are performed on three WDNs varying complexity.

ACS Style

Lew Rossman; Sam Hatchett; Xuxi; Brad Eck; Mario Castro Gama; Tom Taxon; Mehmet Melih Koşucu; Albay Enes; Mehmet Cüneyd Demirel. MehmetMelihKosucu/epanet-dev: EPANET-RWCGGA. 2021, 1 .

AMA Style

Lew Rossman, Sam Hatchett, Xuxi, Brad Eck, Mario Castro Gama, Tom Taxon, Mehmet Melih Koşucu, Albay Enes, Mehmet Cüneyd Demirel. MehmetMelihKosucu/epanet-dev: EPANET-RWCGGA. . 2021; ():1.

Chicago/Turabian Style

Lew Rossman; Sam Hatchett; Xuxi; Brad Eck; Mario Castro Gama; Tom Taxon; Mehmet Melih Koşucu; Albay Enes; Mehmet Cüneyd Demirel. 2021. "MehmetMelihKosucu/epanet-dev: EPANET-RWCGGA." , no. : 1.

Software
Published: 15 July 2021
Reads 0
Downloads 0

EPANET hydraulic solver is enhanced with Rigid Water Column Global Gradient Algorithm i.e. unsteady incompressible flow analysis algorithm of WDNs. Valve representation which produces resistance according to valve opening is defined on EPANET. In order to provide convergence globally Convergence Tracking Control Method is added to EPANET. The developments and additions are performed on three WDNs varying complexity.

ACS Style

Lew Rossman; Sam Hatchett; Xuxi; Brad Eck; Mario Castro Gama; Tom Taxon; Mehmet Melih Koşucu; Albay Enes; Mehmet Cüneyd Demirel. MehmetMelihKosucu/epanet-dev: EPANET-RWCGGA. 2021, 1 .

AMA Style

Lew Rossman, Sam Hatchett, Xuxi, Brad Eck, Mario Castro Gama, Tom Taxon, Mehmet Melih Koşucu, Albay Enes, Mehmet Cüneyd Demirel. MehmetMelihKosucu/epanet-dev: EPANET-RWCGGA. . 2021; ():1.

Chicago/Turabian Style

Lew Rossman; Sam Hatchett; Xuxi; Brad Eck; Mario Castro Gama; Tom Taxon; Mehmet Melih Koşucu; Albay Enes; Mehmet Cüneyd Demirel. 2021. "MehmetMelihKosucu/epanet-dev: EPANET-RWCGGA." , no. : 1.

Correction
Published: 06 February 2020 in Processes
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We were not aware of an error made in the proofreading phase; therefore, we wish to make the following correction to Figure 1b from this paper

ACS Style

Mehmet Melih Koşucu; Mehmet Cüneyd Demirel; V.S. Ozgur Kirca; Mehmet Özger. Correction: Koşucu, M.M., et al. Hydrodynamic and Hydrographic Modeling of Istanbul Strait. Processes 2019, 7, 710. Processes 2020, 8, 205 .

AMA Style

Mehmet Melih Koşucu, Mehmet Cüneyd Demirel, V.S. Ozgur Kirca, Mehmet Özger. Correction: Koşucu, M.M., et al. Hydrodynamic and Hydrographic Modeling of Istanbul Strait. Processes 2019, 7, 710. Processes. 2020; 8 (2):205.

Chicago/Turabian Style

Mehmet Melih Koşucu; Mehmet Cüneyd Demirel; V.S. Ozgur Kirca; Mehmet Özger. 2020. "Correction: Koşucu, M.M., et al. Hydrodynamic and Hydrographic Modeling of Istanbul Strait. Processes 2019, 7, 710." Processes 8, no. 2: 205.

Journal article
Published: 07 October 2019 in Processes
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The aim of this study is to model the hydrodynamic processes of the Istanbul Strait with its stratified flow characteristics, and calibrate the most important parameters using local and global search algorithms. For that, two open boundary conditions are defined, which are in the northern and southern parts of the Strait. Observed bathymetric, hydrographic, meteorological, and water-level data are used to set up the Delft3D-FLOW model. First, the sensitivities of the model parameters on the numerical model outputs are assessed using Parameter EStimation Tool (PEST) toolbox. Then, the model is calibrated based on the objective functions, focusing on the flow rates of the upper and lower layers. The salinity and temperature profiles of the strait are only used for model validation. The results show that the calibrated model outputs of the Istanbul Strait are reliable and consistent with the in situ measurements. The sensitivity analysis reveals that the spatial low-pass filter coefficient, horizontal eddy viscosity, Prandtl–Schmidt number, slope in log–log spectrum, and Manning roughness coefficient are most sensitive parameters affecting the flow rate performance of the model. The agreement between observed salinity profiles and simulated model outputs is promising, whereas the match between observed and simulated temperature profiles is weak, showing that the model can be improved, particularly for simulating the mixing layer.

ACS Style

Mehmet Melih Koşucu; Mehmet Cüneyd Demirel; V.S. Ozgur Kirca; Mehmet Özger. Hydrodynamic and Hydrographic Modeling of Istanbul Strait. Processes 2019, 7, 710 .

AMA Style

Mehmet Melih Koşucu, Mehmet Cüneyd Demirel, V.S. Ozgur Kirca, Mehmet Özger. Hydrodynamic and Hydrographic Modeling of Istanbul Strait. Processes. 2019; 7 (10):710.

Chicago/Turabian Style

Mehmet Melih Koşucu; Mehmet Cüneyd Demirel; V.S. Ozgur Kirca; Mehmet Özger. 2019. "Hydrodynamic and Hydrographic Modeling of Istanbul Strait." Processes 7, no. 10: 710.

Article
Published: 06 October 2019 in Water
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Although the complexity of physically-based models continues to increase, they still need to be calibrated. In recent years, there has been an increasing interest in using new satellite technologies and products with high resolution in model evaluations and decision-making. The aim of this study is to investigate the value of different remote sensing products and groundwater level measurements in the temporal calibration of a well-known hydrologic model i.e., Hydrologiska Bryåns Vattenbalansavdelning (HBV). This has rarely been done for conceptual models, as satellite data are often used in the spatial calibration of the distributed models. Three different soil moisture products from the European Space Agency Climate Change Initiative Soil Measure (ESA CCI SM v04.4), The Advanced Microwave Scanning Radiometer on the Earth Observing System (EOS) Aqua satellite (AMSR-E), soil moisture active passive (SMAP), and total water storage anomalies from Gravity Recovery and Climate Experiment (GRACE) are collected and spatially averaged over the Moselle River Basin in Germany and France. Different combinations of objective functions and search algorithms, all targeting a good fit between observed and simulated streamflow, groundwater and soil moisture, are used to analyze the contribution of each individual source of information.

ACS Style

Mehmet Cüneyd Demirel; Alparslan Özen; Selen Orta; Emir Toker; Hatice Kübra Demir; Ömer Ekmekcioğlu; Hüsamettin Tayşi; Sinan Eruçar; Ahmet Bilal Sağ; Ömer Sarı; Ecem Tuncer; Hayrettin Hancı; Türkan Irem Özcan; Hilal Erdem; Mehmet Melih Koşucu; Eyyup Ensar Başakın; Kamal Ahmed; Awat Anwar; Muhammet Bahattin Avcuoğlu; Ömer Vanlı; Simon Stisen; Martijn J. Booij. Additional Value of Using Satellite-Based Soil Moisture and Two Sources of Groundwater Data for Hydrological Model Calibration. Water 2019, 11, 2083 .

AMA Style

Mehmet Cüneyd Demirel, Alparslan Özen, Selen Orta, Emir Toker, Hatice Kübra Demir, Ömer Ekmekcioğlu, Hüsamettin Tayşi, Sinan Eruçar, Ahmet Bilal Sağ, Ömer Sarı, Ecem Tuncer, Hayrettin Hancı, Türkan Irem Özcan, Hilal Erdem, Mehmet Melih Koşucu, Eyyup Ensar Başakın, Kamal Ahmed, Awat Anwar, Muhammet Bahattin Avcuoğlu, Ömer Vanlı, Simon Stisen, Martijn J. Booij. Additional Value of Using Satellite-Based Soil Moisture and Two Sources of Groundwater Data for Hydrological Model Calibration. Water. 2019; 11 (10):2083.

Chicago/Turabian Style

Mehmet Cüneyd Demirel; Alparslan Özen; Selen Orta; Emir Toker; Hatice Kübra Demir; Ömer Ekmekcioğlu; Hüsamettin Tayşi; Sinan Eruçar; Ahmet Bilal Sağ; Ömer Sarı; Ecem Tuncer; Hayrettin Hancı; Türkan Irem Özcan; Hilal Erdem; Mehmet Melih Koşucu; Eyyup Ensar Başakın; Kamal Ahmed; Awat Anwar; Muhammet Bahattin Avcuoğlu; Ömer Vanlı; Simon Stisen; Martijn J. Booij. 2019. "Additional Value of Using Satellite-Based Soil Moisture and Two Sources of Groundwater Data for Hydrological Model Calibration." Water 11, no. 10: 2083.

Preprint
Published: 28 August 2019
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The aim of this study is to model hydrodynamic processes of the Istanbul Strait with its stratified flow characteristic and calibrate the most important parameters using local and global search algorithms. For that two open boundary conditions are defined, which are in the North and South part of the Strait. Observed bathymetric, hydrographic, meteorological and water level data are used to set up the Delft3D-FLOW model. First, the sensitivities of model parameters on the numerical model outputs are assessed using PEST toolbox. Then, the model is calibrated based on the objective functions focusing on the flowrates of upper and lower layers. The salinity and temperature profiles of the Strait are only used for model validation. The results show that the calibrated model outputs of Istanbul Strait are reliable and consistent with the in-situ measurements. The sensitivity analysis reveals that the Spatial Low-Pass Filter Coefficient, Horizontal Eddy Viscosity, Prandtl-Schmidt Number, Slope in log-log Spectrum and Manning Roughness Coefficient are most sensitive parameters affecting flowrate performance of the model. The agreement between observed salinity profiles and simulated model outputs is promising whereas the match between observed and simulated temperature profiles is weak showing that the model can be improved particularly for simulating the mixing layer.

ACS Style

Mehmet Melih Koşucu; Mehmet Cüneyd Demirel; V.S. Ozgur Kirca; Mehmet Özger. Hydrodynamic and Hydrographic Modeling of Istanbul Strait. 2019, 1 .

AMA Style

Mehmet Melih Koşucu, Mehmet Cüneyd Demirel, V.S. Ozgur Kirca, Mehmet Özger. Hydrodynamic and Hydrographic Modeling of Istanbul Strait. . 2019; ():1.

Chicago/Turabian Style

Mehmet Melih Koşucu; Mehmet Cüneyd Demirel; V.S. Ozgur Kirca; Mehmet Özger. 2019. "Hydrodynamic and Hydrographic Modeling of Istanbul Strait." , no. : 1.