Integrasi Data Batimetri Dan Mosaik Backscatter Multibeam Untuk Identifikasi Fitur Dasar Laut

Fadhillah, Cut Ulfah (2021) Integrasi Data Batimetri Dan Mosaik Backscatter Multibeam Untuk Identifikasi Fitur Dasar Laut. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

Text 03311740000009_Undergraduate Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2023. Download (2MB) | Request a copy

Abstract

Adanya ekspansi wilayah di perairan Papahānaumokuākea Marine National Monument pada tahun 2016, menjadikan wilayah ekspansi pada perairan tersebut masih banyak yang belum disurvei. Oleh karena itu, pada tahun 2018 National Oceanic and Atmospheric Administration (NOAA) melakukan ekpedisi yang bertujuan untuk memberikan informasi mengenai kondisi perairan penelitian kepada manajemen Papahānaumokuākea Marine National Monument. Penelitian ini akan memberikan informasi mengenai kondisi topografi, mengidentifikasi fitur pada perairan tersebut beserta karakteristiknya di perairan Papahānaumokuākea dengan menggunakan data batimetri dan backscatter multibeam echosounder berfrekuensi 30 kHz.
Pengeditan data batimetri dilakukan menggunakan kombinasi dari metode-metode area-based manual point editing di 3D Editor dan Slice Editor, Filter Operations (seperti: Spline), dan CUBE Filtering yang terkandung dalam perangkat lunak Qimera. Sedangkan untuk pengolahan data hambur balik (backscatter) menggunakan Geocoder yang terkandung dalam perangkat lunak FMGT. Untuk klasifikasi jenis sedimen menggunakan metode ARA.
Dari pengolahan data tersebut diperoleh tiga fitur gunung bawah laut berupa satu seamount dan dua guyot beserta dua belas jenis sedimen yang tersebar di area penelitian yang didominasi oleh pasir sangat halus dan pasir lempung. Untuk memudahkan dalam penjabaran, peneliti membagi lokasi menjadi tiga bagian yaitu Lokasi A, Lokasi B dan Lokasi C. Pada lokasi A ditemukan sebuah seamount yang memiliki bentuk puncak menyerupai kerucut dengan luas 198,618 km2 dan memiliki ketinggian 2.586 m. Seamount tersebut didominasi oleh kemiringan lereng yang curam dengan luas kemiringan 132,971 km2 dan didominasi oleh sedimen pasir berlumpur seluas 63,99 km2. Pada lokasi B ditemukan sebuah guyot yang mempunyai luas 561,692 km2 dengan ketinggian 3.208 m dan memiliki puncak datar dengan panjang mencapai 2.580 m. Guyot tersebut didominasi oleh kemiringan lereng yang curam dengan luas kemiringan 243,442 km2 dan didominasi oleh sedimen pasir sangat halus seluas 218,43 km2. Pada lokasi C ditemukan sebuah guyot dengan luas 875,913 km2 dengan ketinggian 3.382 m, puncak datar dengan panjang mencapai 6.720 m dan kemiringan lereng yang didominasi oleh lereng yang agak curam dengan luas kemiringan 281,536 km2 dan didominasi oleh sedimen pasir sangat halus seluas 242,28 km2.
=====================================================================================================
The existence of territorial expansion in the Papahānaumokuākea Marine National Monument in 2016 has caused the expansion area in the marine monument to be rarely surveyed. Therefore, in 2018 the National Oceanic and Atmospheric Administration (NOAA) conducted an expedition in the attempt to provide information regarding the condition of the research location to the management authority of Papahānaumokuākea Marine National Monument. This study will provide information specifically on the topographic conditions and also identify the features and characteristics of Papahānaumokuākea waters by using bathymetry data and and backscatter multibeam echosounder with a frequency of 30 kHz.
The bathymetric data editing was perfomed by using the combination of area-based manual point editing methods in the 3D Editor and Slice Edictor, Filter Operations (such as Spline), and also CUBE Filtering contained in the Qimera software. On the other hand, the backscatter data processing was done by using the Geocoder which is included in the FMGT software. Furthermore, the classification of sediment types was conducted by using the ARA method.
There were three underwater mountain featured obtained from the data processing in the forms of one seamount and two guyots along with twelve types of sediments deployed in the research area, mainly dominated by very fine sand and also clayey sand. In order to simplify the description, the researchers divided the study location into three parts, including Location A, Location B, and Location C. At location A, a seamount was found with a cone-shaped peak with an area of 198.618 km2 and a height of 2,586 meters. Furthermore, the seamount is also dominated by a steep slope with an area of 132.971 km2 and mostly covered by muddy sand sediment with an area of 63.99 km2. At location B, a guyot was found with an area of 561.692 km2 and a height of 3,208 meters and it has a flat peak with a length of 2,580 meters. The guyot is dominated by a steep slope with an area of 243.422 km2 and mostly covered by very fine sand sediment with an area of 218.43 km2. At location C, a guyot was found with an area of 875.913 km2 and a height of 3,382 meters and also it has a flat peak with a length of 6,720 meters. The slope area of the location is dominated by moderately steep slope with an area of 281.563 km2 and it is mostly consisted by very fine sand sediment covering 242.28 km2 of study area.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Multibeam Echosounder, Batimetri, Backscatter, Seamount, Guyot, Sedimen,Multibeam Echosounder, Bathymetry, Backscatter, Seamount, Guyot, Sediment
Subjects:	G Geography. Anthropology. Recreation > GC Oceanography > GC1018.5 Ocean zoning. Q Science > QE Geology > QE471 Sedimentary rocks. Sedimentology Q Science > QE Geology > QE601 Geology, Structural
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User:	Cut Ulfah Fadhillah
Date Deposited:	22 Aug 2021 06:25
Last Modified:	22 Aug 2021 06:25
URI:	http://repository.its.ac.id/id/eprint/88196

Actions (login required)

View Item