Implementasi Data Tinggi Global Navigation Satellite System (GNSS) Continuously Operating Reference Stations (CORS) dalam Pengembangan Kadaster 3 Dimensi (3D) di Indonesia

Margaretha Elya Lim Putraningtyas; Leni Sophia  Heliani; Nurrohmat  Widjajanti

doi:10.53686/jp.v12i1.128

Authors

Margaretha Elya Lim Putraningtyas ATR/BPN
Leni Sophia Universitas Gadjah Mada
Widjajanti Universitas Gadjah Mada

DOI:

https://doi.org/10.53686/jp.v12i1.128

Keywords:

kadaster 3 D, sistem tinggi, GNSS CORS, 3D cadastre, height system

Abstract

Abstrak

Representasi sistem kadaster 3D membutuhkan kerangka teknis dalam hal ketelitian posisi dan syarat-syarat teknis. Sistem tinggi yang mempunyai georeferensi pada sistem koordinat horizontal dan vertikal tertentu dapat menentukan lokasi properti dan hubungan geometrik model kadaster 3D. Salah satu solusi alternatif penentuan sistem koordinat vertikal adalah menggunakan tinggi ortometrik yang diikatkan pada sistem tinggi nasional. Seiring dengan perkembangan kadaster 3D dalam beberapa dekade terakhir, berkembang juga teknologi termasuk akuisisi data kadaster 3D, validasi data, dan visualisasi data untuk memenuhi kebutuhan dasar kadaster 3D. Pengukuran objek kadaster 3D secara teliti, baik secara horizontal dan vertikal didukung oleh teknologi pengukuran yang berkembang sangat pesat, seperti GNSS CORS dan laser scanner. Tujuan penyusunan makalah ini adalah menyediakan data kadaster 3D dalam membangun sistem kadaster digital, validasi, dan pemodelan kadaster 3D. Kadaster 3D direpresentasikan menggunakan sistem tinggi ortometrik yang dihasilkan oleh teknologi GNSS CORS dalam tinggi elipsoid. Objek kadaster penelitian adalah Rusunawa Gemawang 2 dan Apartemen Student Park yang mewakili objek rumah susun. Proses georeferensi Rusunawa Gemawang 2 menghasilkan RMSE georeferensi minimum 0,008 m dan maksimum 0,017 m, sementara Apartement Student Park menghasilkan RMSE minimum 0,007 m dan maksimum 0,020 m. Model kadaster 3D divisualisasikan dalam bentuk ruang di tiap-tiap level dan memberikan gambaran geometrik 3D. Konversi tinggi dari tinggi elipsoid menjadi ortometrik merupakan salah satu tantangan dalam representasi kadaster 3D di Indonesia.

ABSTRACT

The representation of the 3D cadastral system requires a technical framework in terms of positional precision and technical requirements. Height systems that have georeference in certain horizontal and vertical coordinate systems can determine the location of properties and geometric relationships cadastre model. One alternative solution for determining the vertical coordinate system is to use an orthometric height tied to the national height system. Along with the development of the 3D cadastre in the last few decades, technology has also evolved including 3D cadastral data acquisition, data validation, and data visualization to meet the basic needs of the 3D cadastre. The meticulous measurement of 3D cadastral objects, both horizontally and vertically, is supported by rapidly developing measurement technologies, such as GNSS CORS and laser scanners. The purpose of this paper is to provide 3D cadastral data in building a digital cadastral system, validation, and 3D cadastral modeling. The 3D cadastre is represented using the orthometric height system generated by GNSS CORS technology using the elipsoid height. The object of the research cadastre is Rusunawa Gemawang 2 and Student Park Apartment which represent the apartment object. The georeferenced process of Rusunawa Gemawang 2 produces a minimum RMSE of 0.008 m and a maximum of 0.017 m, while the Student Park Apartment produces a minimum RMSE of 0.007 m and a maximum of 0.020 m. The 3D cadastral model is visualized in the form of a space at each level and provides a 3D geometric picture. Converting height from ellipsoid height to orthometric is a challenge in 3D cadastral representation in Indonesia.

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