PENENTUAN TIPE SUBSTRAT DASAR PERAIRAN MENGGUNAKAN METODE HIDROAKUSTIK DI SEBAGIAN PESISIR TIMUR BANYUASIN

LIYANI, MEGA and Fauziyah, Fauziyah and Aryawati, Riris (2018) PENENTUAN TIPE SUBSTRAT DASAR PERAIRAN MENGGUNAKAN METODE HIDROAKUSTIK DI SEBAGIAN PESISIR TIMUR BANYUASIN. Undergraduate thesis, Sriwijaya University.

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Abstract

Determination of the water bottom substrate types can be viewed using hidroakustik. This method is environmentally friendly and estimates used a relatively short time. The collection of acoustic data obtained by surveying as many 13 ESDU with a total distance of 24.05 nmi or 44.603 km for 3 days using acoustic equipment a single beam echosounder SIMRAD EK-15 with a single frequency of 200 kHz. Sampel collected by using ekman grab in 7 stations that using stratified random sampling method. The measurement results substrate category basedwaters, Triangle Shepard there are 4 types of clayeysand, clayeysilt, sand silt clayand silty clay. Substrate type classification surface backscattering strength (SS), there are 3 types of acoustic, clayey sand (-47.06 dB to -49.72 dB), sand silt clay (-50.79 dB to -51.50 dB) and silty clay (-52.68 dB to -53.76 dB). Clayey sand has avalue surface backscattering strength (SS) the bigges because clayey sand has a roughness (E1) of (-17.55 dB to -14.26 dB), hardness (E2) by (-48.23 dB to -41.03 dB) and the grain size is larger than other types of substrates. The correlation (r) between the surface backscattering strength (SS) and substrate type has a strong relationship or positive value that is 0.95.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Hydroacoustic, surface backscattering strength (SS), water substrate type
Subjects: G Geography. Anthropology. Recreation > GB Physical geography > GB1201-1598 Rivers. Stream measurements
G Geography. Anthropology. Recreation > GC Oceanography > GC1-1581 Oceanography
Divisions: 08-Faculty of Mathematics and Natural Science > 54241-Marine Science (S1)
Depositing User: Mrs Dies Meirita Sari
Date Deposited: 26 Jul 2019 08:25
Last Modified: 26 Jul 2019 08:25
URI: http://repository.unsri.ac.id/id/eprint/964

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