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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