ANALISIS LUAS PENGELOLAAN WILAYAH LAUT JAWA TENGAH PADA BEBERAPA SISTEM PROYEKSI DAN SISTEM KOORDINAT

Moehammad Awaluddin; Fauzi Janu Ammarohman; Arief Laila Nugraha; Bandi Sasmito; Khofifatul Azizah

doi:10.14710/elipsoida.2020.9201

DOI: https://doi.org/10.14710/elipsoida.2020.9201

ANALISIS LUAS PENGELOLAAN WILAYAH LAUT JAWA TENGAH PADA BEBERAPA SISTEM PROYEKSI DAN SISTEM KOORDINAT

Moehammad Awaluddin

, Fauzi Janu Ammarohman, Arief Laila Nugraha, Bandi Sasmito, Khofifatul Azizah

Departemen Teknik Geodesi, Fakultas Teknik, Universitas Diponegoro, Indonesia

Received: 18 Oct 2020; Published: 4 Dec 2020.

BibTex Citation Data :

@article{ELIPSOIDA9201,
author = {Moehammad Awaluddin and Fauzi Ammarohman and Arief Nugraha and Bandi Sasmito and Khofifatul Azizah},
title = {ANALISIS LUAS PENGELOLAAN WILAYAH LAUT JAWA TENGAH PADA BEBERAPA SISTEM PROYEKSI DAN SISTEM KOORDINAT},
journal = {Elipsoida : Jurnal Geodesi dan Geomatika},
volume = {3},
number = {02},
year = {2020},
keywords = {},
abstract = { Permendagri No. 141 tahun 2017 menyebutkan bahwa Peta Batas Daerah termasuk Peta Batas Pengelolaan Wilayah Laut menggunakan sistem proyeksi Transverse Mercator dan sistem koordinat UTM. Sistem proyeksi ini bersifat konform yang mempertahankan bentuk (sudut) tetapi tidak mempertahankan luas dan jarak. Penelitian ini menghitung perbedaan luas pada beberapa sistem proyeksi dan sistem koordinat di batas pengelolaan wilayah laut Provinsi Jawa Tengah. Sistem proyeksi dan sistem koordinat yang digunakan adalah: Proyeksi Lambert Silinder Equal Area , Proyeksi UTM Zona 49 Selatan, Proyeksi Transverse Mercator dan Proyeksi Mercator dengan dua sistem koordinat yang berbeda. Selisih luas dihitung terhadap luas hasil proyeksi Lambert Silinder Equal Area yang mempertahankan luas pada sistem proyeksinya. Luas daerah pengelolaan wilayah laut Provinsi Jawa Tengah pada proyeksi UTM dan Transverse Mercator mempunyai persentasi selisih luas yang kecil jika dibandingkan dengan luas proyeksi Lambert Silinder Equal Area . Besarnya persentase selisih luas tidak signifikan sehingga penarikan batas pengelolaan wilayah laut Provinsi Jawa Tengah dapat dilakukan pada sistem proyeksi konform UTM. Perbedaan persentasi luas yang besar pada proyeksi Mercator dibandingkan dengan proyeksi UTM dan Transverse Mercator disebabkan letak daerah yang berjarak paling jauh pada garis yang mempunyai distorsi nol. Permendagri No. 141 of 2017 states that the regional boundary map including the maritime area management boundary map uses the Transverse Mercator projection system and the UTM coordinate system. This projection system is conform projection which maintains shape (angle) but does not maintain area and distance. This study calculates the area differences in several projection systems and coordinate in the management boundaries of the sea territory of The Central Java Province. The projection system and coordinate system used are: Equal Area Cylindrical Lambert Projection, UTM Projection zone 49 south, Transverse Mercator Projection and Mercator Projection with two different coordinate systems. The difference in area is calculated against the projected area of the Lambert Cylindrical Equal Area which maintains the area of the projection system. The area of the sea management area of Central Java Province in the UTM and Transverse Mercator projections has a small percentage difference in area when compared to the projected area of the Lambert Cylindrical Equal Area. The magnitude of the percentage difference in area is not significant so that the drawing of boundaries for the management of the sea area of Central Java Province can be carried out on the UTM conforming projection system. The bigger percentage of area difference of the Mercator projection compared to the UTM and Transverse Mercator projections is due to the location of the area that is the farthest away from the line which has zero distortion. },
issn = {2621-9883}, pages = {185--191} doi = {10.14710/elipsoida.2020.9201},
url = {https://ejournal2.undip.ac.id/index.php/elipsoida/article/view/9201}
}

Citation Format:

Abstract

Permendagri No. 141 tahun 2017 menyebutkan bahwa Peta Batas Daerah termasuk Peta Batas Pengelolaan Wilayah Laut menggunakan sistem proyeksi Transverse Mercator dan sistem koordinat UTM. Sistem proyeksi ini bersifat konform yang mempertahankan bentuk (sudut) tetapi tidak mempertahankan luas dan jarak. Penelitian ini menghitung perbedaan luas pada beberapa sistem proyeksi dan sistem koordinat di batas pengelolaan wilayah laut Provinsi Jawa Tengah. Sistem proyeksi dan sistem koordinat yang digunakan adalah: Proyeksi Lambert Silinder Equal Area, Proyeksi UTM Zona 49 Selatan, Proyeksi Transverse Mercator dan Proyeksi Mercator dengan dua sistem koordinat yang berbeda. Selisih luas dihitung terhadap luas hasil proyeksi Lambert Silinder Equal Area yang mempertahankan luas pada sistem proyeksinya. Luas daerah pengelolaan wilayah laut Provinsi Jawa Tengah pada proyeksi UTM dan Transverse Mercator mempunyai persentasi selisih luas yang kecil jika dibandingkan dengan luas proyeksi Lambert Silinder Equal Area. Besarnya persentase selisih luas tidak signifikan sehingga penarikan batas pengelolaan wilayah laut Provinsi Jawa Tengah dapat dilakukan pada sistem proyeksi konform UTM. Perbedaan persentasi luas yang besar pada proyeksi Mercator dibandingkan dengan proyeksi UTM dan Transverse Mercator disebabkan letak daerah yang berjarak paling jauh pada garis yang mempunyai distorsi nol.

Permendagri No. 141 of 2017 states that the regional boundary map including the maritime area management boundary map uses the Transverse Mercator projection system and the UTM coordinate system. This projection system is conform projection which maintains shape (angle) but does not maintain area and distance. This study calculates the area differences in several projection systems and coordinate in the management boundaries of the sea territory of The Central Java Province. The projection system and coordinate system used are: Equal Area Cylindrical Lambert Projection, UTM Projection zone 49 south, Transverse Mercator Projection and Mercator Projection with two different coordinate systems. The difference in area is calculated against the projected area of the Lambert Cylindrical Equal Area which maintains the area of the projection system. The area of the sea management area of Central Java Province in the UTM and Transverse Mercator projections has a small percentage difference in area when compared to the projected area of the Lambert Cylindrical Equal Area. The magnitude of the percentage difference in area is not significant so that the drawing of boundaries for the management of the sea area of Central Java Province can be carried out on the UTM conforming projection system. The bigger percentage of area difference of the Mercator projection compared to the UTM and Transverse Mercator projections is due to the location of the area that is the farthest away from the line which has zero distortion.

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