Pola akumulasi dan karakteristik sedimen di perairan delta sungai Bodri, Kabupaten Kendal, Jawa Tengah=Accumulation pattern and Sediment characteristics in the bodri river delta Keldal regency , Central Java

• Main Author: Perpustakaan UGM, i-lib
• Format: Article NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2006
• Subjects: Jurnal i-lib UGM
• Online Access: https://repository.ugm.ac.id/17748/; http://i-lib.ugm.ac.id/jurnal/download.php?dataId=513
• Institution: Universitas Gadjah Mada

ABSTRACT: The problem of this research are (1) the accumulation pattern of delta sediment in the Bodri river delta, (2) the sediment characteristics of the Bodri river delta, and (3) the dominant oceanographic factors that influence to the accummulation pattern of the sediment in the Bodri river delta. The aims of this research are : (1) to analyze sediment accummulation patterns, and the characteristics of the Bodri river delta, (2) to define the dominant oceanographic factors to the accummulation pattern of the Bodri river delta. The research method include measuring tide, bathymetry, currents, wave, as well as sediment collection at every sample location. Laboratorium analysis was conducted to the whole data collected during field measurement. Results of the research indicated that Bodri river discharge is 11.3315 m3/ sec, while the sediment discharge is 0.0835 kg/sec., the bight of lowest tides 37 cm., while the bight of the highest tide is 98 cm., with an average of the sea water level (MSL) is 58.65 cm. The depth od the subsurface water is (-11) cm to (-111) cm. The velocity of current is between 0.15 m/ sec to 0.68 cm/sec., with current direction between North 210° East to North 267° East. The hight of the wave is 0.08 m to 1.5 m, with the wave direction between North 200° East to North 318° East. The subsurface morphology of Bodri river delta is aimed to the sea and it spreadsout of the left and the right of the river estuary, more or less paralel to the shoreline. The sediment distribution at the Bodri river delta in the estuary has fine texture (sandy loam). Out of river estuary the sediment size become coarser (lommy sand to sand), where wave energy dominantly affected the accummulation pattern of sediment at the Bodri river delta. Key words : accummulation pattern, sediment characteristics, Bodri river delta.