| GSTARS computer models and their applications, part I： theoretical development |
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| 引用本文： | Chih Ted YANG and Francisco J. M. SIMES Borland Prof. of Water Resources and Director of Hydroscience and Training Center,Department of Civil and Environmental Engineering,Colorado State University,Fort Collins,CO -,U. S. A., Research Hydrologist,US Geological Survey,Geomorphology and Sediment Transport Laboratory, Technology Drive,Suite ,Golden,CO ,U. S. A..GSTARS computer models and their applications, part I： theoretical development[J].国际泥沙研究,2008,23(3):197-211. |
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| 作者姓名： | Chih Ted YANG and Francisco J. M. SIMES Borland Prof. of Water Resources and Director of Hydroscience and Training Center |
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| 作者单位： | Borland Prof. of Water Resources and Director of Hydroscience and Training Center，Department of Civil and Environmental Engineering，Colorado State University，Fort Collins，CO 80523-1372，U. S. A.，Research Hydrologist，US Geological Survey，Geomorphology and Sediment Transport Laboratory，4620 Technology Drive，Suite 400，Golden，CO 80403，U. S. A. |
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| 摘 要： | GSTARS is a series of computer models developed by the U.S. Bureau of Reclamation for alluvial river and reservoir sedimentation studies while the authors were employed by that agency. The first version of GSTARS was released in 1986 using Fortran IV for mainframe computers. GSTARS 2.0 was released in 1998 for personal computer application with most of the code in the original GSTARS revised, improved, and expanded using Fortran IV/77. GSTARS 2.1 is an improved and revised GSTARS 2.0 with graphical user interface. The unique features of all GSTARS models are the conjunctive use of the stream tube concept and of the minimum stream power theory. The application of minimum stream power theory allows the determination of optimum channel geometry with variable channel width and cross-sectional shape. The use of the stream tube concept enables the simulation of river hydraulics using one-dimensional numerical solutions to obtain a semi-two- dimensional presentation of the hydraulic conditions along and across an alluvial channel. According to the stream tube concept, no water or sediment particles can cross the walls of stream tubes, which is valid for many natural rivers. At and near sharp bends, however, sediment particles may cross the boundaries of stream tubes. GSTARS3, based on FORTRAN 90/95, addresses this phenomenon and further expands the capabilities of GSTARS 2.1 for cohesive and non-cohesive sediment transport in rivers and reservoirs. This paper presents the concepts, methods, and techniques used to develop the GSTARS series of computer models, especially GSTARS3.
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| 关 键 词： | 数字模型 沉淀物 河流 地理形态 |
GSTARS computer models and their applications, part I: theoretical development |
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| Chih Ted YANG,Francisco J. M. SIMES.GSTARS computer models and their applications, part I: theoretical development[J].International Journal of Sediment Research,2008,23(3):197-211. |
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| Authors: | Chih Ted YANG Francisco J M SIMES |
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| Institution: | [1]Borland Prof. of Water Resources and Director of Hydroscience and Training Center [2]Research Hydrologist, US Geological Survey, Geomorphology Technology Drive, Suite 400, Golden, CO 80403, U. S. A. |
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| Abstract: | GSTARS is a series of computer models developed by the U.S. Bureau of Reclamation for alluvial river and reservoir sedimentation studies while the authors were employed by that agency. The first version of GSTARS was released in 1986 using Fortran IV for mainframe computers. GSTARS 2.0 was released in 1998 for personal computer application with most of the code in the original GSTARS revised, improved, and expanded using Fortran IV/77. GSTARS 2.1 is an improved and revised GSTARS 2.0 with graphical user interface. The unique features of all GSTARS models are the conjunctive use of the stream tube concept and of the minimum stream power theory. The application of minimum stream power theory allows the determination of optimum channel geometry with variable channel width and cross-sectional shape. The use of the stream tube concept enables the simulation of river hydraulics using one-dimensional numerical solutions to obtain a semi-two-dimensional presentation of the hydraulic conditions along and across an alluvial channel. According to the stream tube concept, no water or sediment particles can cross the walls of stream tubes, which is valid for many natural rivers. At and near sharp bends, however, sediment particles may cross the boundaries of stream tubes. GSTARS3, based on FORTRAN 90/95, addresses this phenomenon and further expands the capabilities of GSTARS 2.1 for cohesive and non-cohesive sediment transport in rivers and reservoirs. This paper presents the concepts, methods, and techniques used to develop the GSTARS series of computer models, especially GSTARS3. |
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| Keywords: | Numerical modeling Sediment transport Backwater computations Stream tubes Stream power minimization |
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