KARAKTERISTIK OSEANOGRAFI FISIK (BATIMETRI, PASANG SURUT, GELOMBANG SIGNIFIKAN DAN ARUS LAUT) PERAIRAN TELUK BUNGUS

Abstract

Bungus bay waters have a lot of activity, but there is no reliable data related to their oceanographic parameters. It is necessary to study their physical oceanography, to acquire basic information of physical oceanographic characteristics that are useful for the daily activities around these waters. Bathymetric data obtained from the map issued by Dishidros, analyzed in the form of 2D and 3D map display. Tide data measured from ADCP measuring devices, a measuring instrument for the major ocean currents, and also HOBO which has a pressure sensor in the device. While the wave data obtained from ECMWF in the form of significant wave height, but it also contained model/forecasting a significant wave height of BMKG. The depth of the bay of Bungus relatively shallow sea, which reaches 30 m. Form of the sea bottom relief not seen a significant impact on the influence of the ocean, because the waters are adequately protected by the shape of the bay. Tide that occur is predominantly a mixture of type double, 139.30 cm (October-November 2013). Significant wave Bungus bay waters and surrounding areas (January- October 2013) is 0.42 to 1.7 m and 0.3 to 2.5 m (August-December 2015). Largest wave height occurs mainly dated October 9, 2013 until October 11, 2013 is 1.5-1.7 m, and 8 to 14 September 2015 to reach 2.25 m. Currents in Bungus bay waters generally dominated by the influence of zonal flows, both the depth current of 10.5 m and 18.5 m. The average velocity of depth current of 10.5 m by 0.0477 m/s, but there was a large current 0.5240 m / sec November 11, 2013 at 14:50 am with the South-East direction. At a depth of 18.5 m, the average current velocity 0.3799 m/s and a maximum current of 0.9320 m/s on 14 November 2013 at 22:00 pm at South West direction.