عنوان

Estuarine hydraulics in a shallow deltaic estuary with reference to the Kali Garang Estuary, Semarang, Indonesia

TLpq304017849

انگلیسی

Estuarine hydraulics in a shallow deltaic estuary with reference to the Kali Garang Estuary, Semarang, Indonesia

[Thesis]

Suripin

Memorial University of Newfoundland (Canada)

1992

259

M.Eng.

Memorial University of Newfoundland (Canada)

1992

Tidal excursion, salinity distribution and circulation patterns are used to represent the estuarine behaviour. The Discharge Effectiveness Index is used to evaluate the relative contribution of river flow versus marine forces to the development of deltas. Field observations of water level, salinity, temperature, currents, and sediments were made during the dry season of 1991. The study shows that the Kali Garang Estuary experiences a small-diurnal tide-range (usd\approxusd65 cm). In the manmade West Channel the tide propagates up the estuary as far as the weir. The tidal range decreases landward and the fresh water discharge flows seaward over the saline water that intrudes landward below it. In the Kali Semarang, the tide propagates as far as its mid length. Fresh water mixes directly with seawater, and a weak vertical stratification is experienced. The saline water moves up and down the estuary due to the flood and ebb tides. The coast where the estuary discharges to the sea is subject to a very moderate wave climate. Maximum wave power occurs in phase with maximum river discharge and this results in the formation of a wave-dominated delta. The high river sediment during the rainy season is spread out by waves generated by the west monsoon. This material is then redistributed along the shoreline by waves generated by the east monsoon during the low freshwater flow of the dry season. (Abstract shortened by UMI.)

Applied sciences

Earth sciences

Hydrology

Hydrology

Mechanical engineering

Suripin

p

[Thesis]

276903

a

Y