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H L Salim
Pusat Litbang Sumberdaya Laut dan Pesisir, Badan Litbang KP, KKP

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Identification and Spatial Pattern of Kao Bay Bathymetry Based on UNCLOS Yulius, Yulius; Salim, H L
Forum Geografi Vol 29, No 1 (2015): Forum Geografi
Publisher : Forum Geografi

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Abstract

Kao Bay is located in the province of North Maluku between Regency of North Halmahera and West Halmahera. The study aims are to identify bay criteria according to UNCLOS and bathymetry based on Nautical Chart. The methods used in this study are the identification of the bay area under UNCLOS and spatial analysis using GIS software. The result shows that Kao Bay has a coast line length of 127.7 km, a mouth bay cover line of 11.1 km, total surface area of  964.38  km2, and total surface semi-circular bay cover area of 48.4 km2. The total surface area larger than the area of the semicircle bay cover area. It has been full compliance with the criteria required by UNCLOS. Spatial analysis, found that for the depth of water in Kao Bay can be divided into six classes, these are: (1) 0 – 100 meter with area of 964,38 km2, (2) 100 - 200 meter with area of 667.25 km2, (3) 200 - 300 meter with area of 556.95 km2, (4) 300 - 400 meter with area of 376.89 km2, (5) 400 - 500 meter with area of 202.44 km2, (6) 500 - 600 meter with area of 2.22 km2.
Spatial Pattern of Bathymetry in Wangi-Wangi Island and Its Surrounding Based on GEBCO Data and Nautical Map Yulius, Yulius; Salim, H L; Ramdhan, M
Forum Geografi Vol 29, No 2 (2015): Forum Geografi
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The study aims is to define bathymetry based on General Bathymetric Chart of the Oceans (GEBCO) and Nautical Map using GIS technique. The methods used in this study are the kriging method which combines the spatial correlation among the data using GIS and Remote Sensing software. The result shows that bathymetry at research area can be divided into five classes, these are: (1) 0-2 meter with area of 1.797,61 hectare, (2) 2-5 meter with area of 2.059,06 hectare, (3) 5-10 meter with area of 1.184,02 hectare, (4) 10-25 meter with area of 3.025.00 hectare, (5) 25-200 meter with area of 5.648.62 hectare.The spatial pattern of bathymetry dispersed from the shallow water at the edge of beach and more deep at the offshore, except at the eastern side of Wangi-Wangi island which has barrier reef and created basin between them.
Spatial Pattern of Bathymetry in Wangi-Wangi Island and Its Surrounding Based on GEBCO Data and Nautical Map Yulius, Yulius; Salim, H L; Ramdhan, M
Forum Geografi Vol 29, No 2 (2015): December 2015
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v29i2.1113

Abstract

The study aims is to define bathymetry based on General Bathymetric Chart of the Oceans (GEBCO) and Nautical Map using GIS technique. The methods used in this study are the kriging method which combines the spatial correlation among the data using GIS and Remote Sensing software. The result shows that bathymetry at research area can be divided into five classes, these are: (1) 0-2 meter with area of 1.797,61 hectare, (2) 2-5 meter with area of 2.059,06 hectare, (3) 5-10 meter with area of 1.184,02 hectare, (4) 10-25 meter with area of 3.025.00 hectare, (5) 25-200 meter with area of 5.648.62 hectare.The spatial pattern of bathymetry dispersed from the shallow water at the edge of beach and more deep at the offshore, except at the eastern side of Wangi-Wangi island which has barrier reef and created basin between them.
Identification and Spatial Pattern of Kao Bay Bathymetry Based on UNCLOS Yulius, Yulius; Salim, H L
Forum Geografi Vol 29, No 1 (2015): July 2015
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v29i1.788

Abstract

Kao Bay is located in the province of North Maluku between Regency of North Halmahera and West Halmahera. The study aims are to identify bay criteria according to UNCLOS and bathymetry based on Nautical Chart. The methods used in this study are the identification of the bay area under UNCLOS and spatial analysis using GIS software. The result shows that Kao Bay has a coast line length of 127.7 km, a mouth bay cover line of 11.1 km, total surface area of  964.38  km2, and total surface semi-circular bay cover area of 48.4 km2. The total surface area larger than the area of the semicircle bay cover area. It has been full compliance with the criteria required by UNCLOS. Spatial analysis, found that for the depth of water in Kao Bay can be divided into six classes, these are: (1) 0 – 100 meter with area of 964,38 km2, (2) 100 - 200 meter with area of 667.25 km2, (3) 200 - 300 meter with area of 556.95 km2, (4) 300 - 400 meter with area of 376.89 km2, (5) 400 - 500 meter with area of 202.44 km2, (6) 500 - 600 meter with area of 2.22 km2.