| Title | Field Investigations and Numerical Simulations on Sediment Transport in Kaohsiung Coastal Area (II) |
| Dept | Transportation Technology and Information Division |
| Year | 2004 |
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| Summary | Published in March 2004 IOT SERIAL No. 93-35-783, 198pp. This is a two-year collaborative project, mainly consisting of two parts: field investigations on sediment transport along Kaohsiung coasts and numerical simulation of sediment transport in the Kaohsiung coastal area. The former is performed by the Department of Civil Engineering, National Taiwan University, while the latter is performed by the Harbor & Marine Technology Center, Institute of Transportation. This is the final report of the second year. In this project, the field investigations at the upriver were performed once a year. Field investigations were carried out twice on the beach in the first year, and twice on the seabed in the second year. The aim of investigation is to collect the deposits from the filed, and then to analyze the grain sizes and the mineral components. The results of the grain size analysis indicate that the deposits on the seabed in the Kaohsiung coastal area are finer than those on the beach. However, the deposits in the downstream region of the Erjen River are much finer than those on the seabed or on the beach. Comparing these grain size distributions, there seems to be more diversity of grain sizes in the seabed. The grain size appears more uniform on the beach. The results of the mineral component analysis show that the drifts along the shore possibly come from the Koaping River because there was high component of chlorite, which is an important index of mineral content in that river. Thus, on the whole, the direction of sediment transport along the coast, from the shoreline to the 15 m deep near-shore, is affirmatively proven to be northward. |
| Post date | 2005/08/15 |
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