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Description.

Project Details

PT Karta Bhumi Nusantara and its team have completed a topographic survey of the Way Garuntang and Way Balau Rivers in Bandar Lampung City, Lampung Province. This survey was conducted using UAV LiDAR for detailed elevation mapping and GNSS RTK for determining ground control points and validating data accuracy.

Project Name
Topographic Survey for the Way Garuntang and Way Balau River Boundaries, Lampung
Category
Planning

Project Summery

Topographic Survey for the Way Garuntang and Way Balau River Boundaries, Lampung
PT Karta Bhumi Nusantara, along with its implementing team, successfully completed a topographic survey of the Way Garuntang and Way Balau River boundaries in Bandar Lampung City, Lampung Province. This survey was conducted to obtain high-precision spatial data that can be used as a basis for determining river boundaries along approximately 26.9 km. Given the river's location across an urban area with a relatively high population density, this survey plays a crucial role in the development of spatial planning policies, flood control, and the protection of protected areas along the riverbanks.
The methodology applied in this survey utilized UAV LiDAR technology for detailed elevation data acquisition and GNSS RTK for ground control point (GCP) measurements, which serve to bind and validate the LiDAR data. The combination of these two methods resulted in the acquisition of precise topographic data, both in the form of 0.5-meter interval contours and digital surface models (DSMs) and digital elevation models (DEMs). The advantage of UAV LiDAR is that it allows for dense vegetation penetration along riverbanks, allowing for a clearer understanding of the underlying morphology of the land.
The mapping scope not only focuses on the main river channel but also includes the banks on both sides of the river, which are included in the riparian area. The data obtained is used to produce detailed topographic maps, cross-sections at specific intervals, and long sections along the river alignment. This information is crucial for identifying changes in river channel geometry, potential erosion, critical landslide points, and areas prone to flooding. Thus, the survey results provide a comprehensive picture of the existing condition of the river and surrounding land.
The main problem faced in this area is the high pressure of human activities along the riverbanks, ranging from settlements and economic activities to waste disposal. This often leads to flooding, siltation, and reduced environmental quality. With this survey data, the local government and relevant technical agencies have a strong basis for establishing riparian lines in accordance with regulations and developing disaster mitigation programs based on current data.
In addition to technical and environmental aspects, the survey results also contribute to the development of regional medium-term development planning documents (RPJMD), detailed spatial planning plans (RDTR), and flood control master plans in the Bandar Lampung urban area.
With UAV LiDAR and GNSS RTK technology-based solutions, PT Karta Bhumi Nusantara is able to provide accurate, fast, and comprehensive data to support the needs of both the government and the private sector in river management. This work not only produces maps and topographic models but also serves as a crucial instrument in efforts to maintain ecological balance and sustainable development in the Lampung urban area. With valid data, it is hoped that decision-making can be more targeted, effective, and oriented towards environmental sustainability.
#LiDAR #UAVLiDAR #Photogrammetry #PointCloud #GeoSpatial #3DMapping #DroneMapping #Surveying #Mapping #Topography #Consultant #SpatialData #GNSSRTK #GpsGeodetic #MappingConsultant #GIS #GISAnalysis #Forestry #topoghrapicmapping #LongandCrossSection #Countur #MappingSpasial

Project Details

PT Karta Bhumi Nusantara and its team have completed a topographic survey using UAV LiDAR, photogrammetry, and bathymetry in the Muara Enim area of ​​South Sumatra. This activity encompassed mapping approximately 89 hectares of land and approximately 22.5 hectares of river bodies, including the Bangke River, Mbiung River, and Kiahaan River. The survey was conducted to support technical planning, hydrological analysis, and environmental management in the mining concession area.

Project Name
Topographic Survey for mining area – Muara Enim Regency
Category
Planning

Project Summery

Topographic Survey for mining area - Muara Enim Regency
PT Karta Bhumi Nusantara has completed an integrated topographic survey using UAV LiDAR, photogrammetry, and bathymetry in the PT Manambang Muara Enim concession area in South Sumatra. This activity focused on three main rivers: the Bangke River, the Mbiung River, and the Kiahaan River, which have complex morphological characteristics, combining open land, dense vegetation, and river bodies with varying depths.
Monitoring was carried out over approximately 89 hectares of land and approximately 22.5 hectares of river bodies. To obtain accurate data, the team installed control points (CPs) using static GNSS methods, followed by UAV LiDAR and photogrammetry data acquisition. The mapping results produced high-resolution aerial orthophotos with an accuracy of 2 cm per pixel, as well as LiDAR point clouds, which were then classified into ground, vegetation, and other objects.
In addition, bathymetric surveys using a USV equipped with a Garmin 585 Plus Single Beam Echo Sounder (SBES) sensor were conducted in the Mbiung and Kiahaan Rivers, while RTK GNSS methods were used in the Bangke River. The results were a riverbed elevation model, bathymetric maps, and longitudinal and cross-sectional profiles that provide details on depth, width, and bank conditions.
The resulting outputs included orthophoto maps, 0.5 m contour maps, digital elevation models, lengths and cross-sections, and coordinate descriptions of the watershed. All of this data has been integrated into the official coordinate system, allowing for direct use to support technical planning and hydrological modeling.
The survey results also revealed significant changes in the landscape from 2013 to 2024, primarily due to open-pit mining activities around the Bangke and Mbiung Rivers. These changes affected vegetation cover, sedimentation potential, and river hydrological patterns, making this updated spatial data crucial for environmental impact planning and mitigation.
By utilizing UAV LiDAR, RTK GNSS, and USV Bathymetry technology, PT Karta Bhumi Nusantara continues to deliver modern survey solutions that are accurate, efficient, and sustainable. The resulting data serves as a critical foundation for supporting air resource management, risk mitigation, and environmentally conscious infrastructure development in the Muara Enim region.
#LiDAR #UAVLiDAR #Photogrammetry #PointCloud #GeoSpatial #3DMapping #DroneMapping #Surveying #Mapping #Topography #Consultant #SpatialData #MappingConsultant #GIS #GISAnalysis #Forestry #miningmapping #LongandCrossSection #Countur #MappingSpasial

Project Details

PT Karta Bhumi Nusantara conducted a 3D survey of the Makarti Muktitama Building in Jakarta as part of its efforts to provide high-accuracy spatial data for facility management, planning, and infrastructure development. The survey aimed to provide a detailed 3D representation of the building to support asset documentation, renovation planning, and digital transformation in building management.

The survey utilized advanced 3D scanning technology and UAV photogrammetry, enabling the production of precise point clouds, 3D models, and digital twins. The results ensured accurate visualization and measurement of the building structure, supporting stakeholders in data-driven decision-making for efficient design, monitoring, and future development.

Project Name
3D Survey of the Makarti Muktitama Building – Jakarta
Category
Planning

Project Summery

📍 3D Survey of the Makarti Muktitama Building – Jakarta
3D surveys of buildings play a crucial role in recording existing conditions in detail and precision. All elements of the building, from the main structure to architectural details, are documented in the form of accurate three-dimensional models. This data serves as a crucial basis for renovations, technical audits, and long-term asset management.For this activity, the Karta Bhumi Nusantara team used the CHCNAV RS-10 SLAM 3D Laser Scan. Simultaneous Localization and Mapping (SLAM) technology enables GPS-free scanning, ideal for indoor areas or locations with signal obstructions. This process produces a high-resolution point cloud that represents the shape and size of each building element in detail.
The results are then processed into a 3D As-Built Model, which serves as an accurate reference for architects, engineers, and building managers. With this digital documentation, management and decision-making can be data-driven, making them more efficient, cost-effective, and targeted.
#KartaBhumiNusantara #CHCNAV #3DLaserScan #SLAMTechnology #AsBuiltModeling #Surveying #Geospatial #DigitalTwin #BIM #3DModeling #MakartiMuktitamaHall

Project Details

PT Karta Bhumi Nusantara conducted topographic surveys in several irrigation areas as part of its contribution to the Ministry of Public Works and Public Housing’s Land and Water Optimization (OPLAH) program. These surveys aim to support sustainable agricultural development by providing accurate spatial data for planning, monitoring, and optimizing water and land resources.

This activity was conducted using the RTK GNSS survey method, which allows for the production of precise topographic maps, irrigation channel cross-sections, and other critical data to ensure the effective design and implementation of irrigation infrastructure improvements.

Project Name
Topographic Survey for Land and Water Optimization in Banten
Category
Planning

Project Summery

The results of a topographic survey conducted in 28 Irrigation Areas (D.I.) in Banten Province revealed varying conditions in the irrigation network, both in terms of construction and functionality. While most canals are constructed using concrete, many sections of earthen canals are still susceptible to damage, leaks, and sedimentation. The obtained elevation, contour, and cross-sectional and longitudinal data provide a detailed picture of the canal's capacity and physical condition, which can serve as a basis for technical planning for irrigation network repairs and rehabilitation. 
With a total surveyed canal length of 138.86 km, RTK GNSS measurement data, 1:1,000-scale contour maps, and 50-meter long and cross-section profiles have been compiled as the primary output. This information is expected to support the Ministry of Public Works and Public Housing (PUPR) through its OPLAH program in making strategic decisions regarding the rehabilitation, improvement, and maintenance of irrigation canals in Banten. Accurate geospatial data allows for more targeted planning, thereby increasing agricultural productivity and supporting national food security.

Project Details

PT Karta Bhumi Nusantara conducted an aerial mapping survey along the Cikampek-Haurgeulis railway line as part of its efforts to provide high-quality spatial data for railway infrastructure planning, monitoring, and development. This activity was carried out using high-tech UAV (drone mapping) capable of producing high-resolution orthophotos and digital elevation models efficiently and accurately.

Project Name
Aerial Photo Survey on the Cikampek – Haurgeulis Railway Line
Client
PT. Tigenco Graha Persada
Category
Planning
Location
Karawang, West Java
Year
2025

Project Summery

Photogrammetric surveying is a method of measuring and mapping the Earth's surface by analyzing aerial photographs or imagery taken from aircraft, drones (UAVs), or satellites. This technique utilizes principles of geometry and optics to transform two-dimensional images into three-dimensional spatial information, such as contours, elevations, and the position of objects on the ground. 
In practice, photogrammetric surveys are conducted by taking a series of overlapping photographs, which are then processed using specialized software to produce products such as orthophotos, digital elevation models (DEM/DTM/DSM), and topographic maps. This method is highly efficient for mapping large areas with a high degree of accuracy and is widely used in the fields of construction, transportation, forestry, mining, and regional planning.

Project Details

PT. Karta Bhumi Nusantara telah melaksanakan Penetapan dan Penegasan Batas Wilayah di Kabupaten Raja Ampat dengan jumlah wilayah 10 Distrik (48 Desa), Penetapan dan Penegasan Batas Wilayah Desa dilakukan secara kartometrik berdasarkan kesepakatan bersama para pihak terkait yang berbatasan.

Project Name
Penetapan dan Penegasan Batas Wilayah (PPBW) di Kabupaten Raja Ampat
Client
Raja Ampat Regency Regional Government
Category
Geospasial,GIS
Location
Raja Ampat Regency
Year
2025

Project Summery

The Determination and Confirmation of Village Boundaries (PPBW) is a strategic step in strengthening legal certainty in administrative boundaries at the village level. This activity includes the verification of legal documents and cartometric boundary tracing. With clear and agreed-upon boundaries, village governments have a strong legal basis for preparing planning documents, implementing development, and managing village assets in an orderly manner.
PPBW not only impacts administrative and legal aspects but also plays a crucial role in supporting national spatial data integration, such as the One Map Policy. Established village boundaries can be used as a reference for mapping regional potential, providing public services, distributing village funds, and mitigating inter-regional boundary conflicts. Therefore, this process requires the active involvement of all stakeholders, from local governments and community leaders to technical institutions, to ensure accurate, participatory, and sustainable results.

Project Details

PT. Karta Bhumi Nusantara telah melaksanakan survei batimetri sebagai data informasi kedalaman untuk studi batas wilayah Sungai Citarum.

Survei batimetri merupakan kegiatan pengukuran kedalaman perairan yang bertujuan untuk mengetahui morfologi dasar laut, sungai, danau, atau rawa. Data yang dihasilkan dari survei ini sangat penting untuk berbagai kebutuhan, seperti pemetaan dasar perairan, perencanaan infrastruktur, pemantauan sedimentasi, hingga pengelolaan lingkungan perairan. Dalam pelaksanaannya, survei batimetri menggunakan perangkat echo sounder, high-precision positioning system (GNSS RTK), dan perangkat pendukung lainnya seperti USV (Unmanned Surface Vehicle) untuk pengumpulan data yang efisien di wilayah yang sulit dijangkau.

Project Name
Survei Batimetri untuk Kajian Sempadan Sungai Citarum
Client
BBWS
Category
Hidrografi,Planning
Location
Citarum, West Java
Year
2025

Project Summery

Single Beam Echo Sounder (SBES) adalah alat survei batimetri yang digunakan untuk mengukur kedalaman perairan pada satu titik secara vertikal, tepat di bawah sensor. Alat ini bekerja dengan memancarkan gelombang suara (sonar) ke dasar sungai, dan menghitung waktu pantulan gelombang tersebut untuk menentukan kedalaman. SBES banyak digunakan dalam survei sungai, danau, waduk, maupun wilayah pesisir karena operasionalnya yang relatif sederhana dan efisien. Dalam kajian sempadan sungai, SBES menjadi instrumen penting untuk mendapatkan data profil dasar sungai secara linier sepanjang lintasan survei. Data kedalaman yang dikumpulkan akan dikombinasikan dengan data posisi dari GNSS serta dikoreksi menggunakan data pasang surut, sehingga menghasilkan informasi batimetri yang akurat dan dapat digunakan untuk analisis geomorfologi sungai serta penentuan batas sempadan yang sesuai dengan regulasi.
Pasang surut (pasut) adalah fenomena naik turunnya muka air laut atau sungai yang disebabkan oleh gaya gravitasi bulan dan matahari terhadap bumi. Dalam konteks survei batimetri, pengukuran pasut sangat penting untuk mengoreksi data kedalaman yang diperoleh agar dapat direferensikan ke datum vertikal yang konsisten, seperti Mean Sea Level (MSL). Tanpa koreksi pasut, hasil pengukuran kedalaman menggunakan alat seperti Single Beam Echo Sounder (SBES) dapat menghasilkan data yang tidak akurat akibat fluktuasi muka air saat survei dilakukan. Pengukuran pasut dapat dilakukan secara manual menggunakan mistar pasut (tide staff) atau secara otomatis dengan alat pencatat pasut digital (tide gauge). Data pasut yang dikumpulkan selama periode survei akan digunakan dalam proses koreksi (tide correction) sehingga kedalaman akhir mencerminkan kondisi sebenarnya dasar perairan. Hal ini menjadi dasar penting dalam kajian teknis seperti penetapan sempadan sungai, analisis banjir, dan pengelolaan wilayah pesisir atau daerah aliran sungai.

Project Details

Dalam rangka mendukung pengelolaan sempadan sungai yang berbasis data dan akurat, PT. Karta Bhumi Nusantara melaksanakan survei topografi menggunakan teknologi UAV LiDAR di sepanjang koridor Sungai Citarum di wilayah administrasi Jawa Tengah. Kegiatan ini merupakan bagian dari upaya sistematis dalam penataan ruang dan mitigasi risiko banjir di wilayah rawan banjir.

Project Name
Survei UAV LiDAR untuk Kajian Sempadan Sungai Citarum
Client
BBWS
Category
Aerial Mapping,Planning
Location
Citarum, West Java
Year
2025

Project Summery

Hasil survei ini akan digunakan sebagai dasar penyusunan kebijakan zonasi, perlindungan ekosistem bantaran sungai, dan pengendalian kegiatan pembangunan di wilayah sekitar sungai. Penetapan batas tersebut sangat penting untuk menjaga fungsi ekologis sungai dan mencegah kerusakan lingkungan akibat pemanfaatan ruang yang tidak terkendali.                                                                                                                                                                                                                               Teknologi UAV (Unmanned Aerial Vehicle) LiDAR dipilih karena kemampuannya dalam memperoleh data elevasi beresolusi tinggi secara cepat, efisien, dan akurat, bahkan di wilayah dengan vegetasi yang rapat atau morfologi yang kompleks. Dengan menggunakan sensor LiDAR (Light Detection and Ranging), kami berhasil mengumpulkan data titik awan yang mampu membedakan antara tajuk vegetasi, bangunan, dan permukaan tanah (tanah kosong), yang sangat krusial dalam pembuatan model elevasi digital (DTM) untuk penentuan batas sungai.

Project Details

PT. Karta Bhumi Nusantara telah melakukan survei batimetri sepanjang 7 kilometer di wilayah pesisir Kabupaten Demak, Jawa Tengah. Survei ini bertujuan untuk mendapatkan gambaran morfologi dan kedalaman perairan yang akan dijadikan acuan dalam berbagai kegiatan perencanaan dan pengelolaan DAS.

Project Name
Survei Batimetri di Kabupaten Demak
Category
Hidrografi,Property
Location
Demak, Central Java
Year
2025

Project Summery

Survei batimetri merupakan kegiatan pemetaan dasar perairan untuk mengetahui kedalaman dan morfologi dasar laut atau sungai. Salah satu metode yang umum digunakan dalam survei ini adalah singlebeam echosounder, yaitu alat yang memancarkan gelombang suara tegak lurus ke dasar perairan dan merekam waktu pantulan gelombang tersebut untuk menghitung kedalaman. Metode ini efektif digunakan untuk survei di area dengan cakupan sempit hingga menengah, seperti sungai, danau, atau pesisir pantai. Dalam pelaksanaannya, singlebeam echosounder dikombinasikan dengan sistem navigasi GPS atau DGPS guna memperoleh posisi horizontal yang akurat dari setiap titik pengukuran kedalaman. Data yang diperoleh kemudian diolah dan dikoreksi terhadap pasang surut agar menghasilkan peta batimetri yang representatif dan siap digunakan untuk berbagai keperluan teknis, seperti perencanaan pelabuhan, pengendalian abrasi, reklamasi, serta pengelolaan wilayah pesisir dan sumber daya kelautan.

Project Details

PT Karta Bhumi Nusantara telah mengerjakan berbagai proyek dari tahun 2021 sampai sekarang, diawal tahun 2025 ini proyek yang telah dikerjakan. Salah satu nya yaitu Survei UAV LiDAR untuk Proyek Properti di Godean, Yogyakarta.

Project Name
Survei UAV LiDAR untuk Proyek Properti
Category
Construction,Property
Location
Godean, DIY
Year
2025

Project Summery

LiDAR (Light Detection and Ranging) adalah teknologi yang menggunakan sinar laser untuk mengukur jarak ke suatu objek. Dalam konteks properti, LiDAR digunakan untuk membuat peta tiga dimensi (3D) yang sangat detail dari suatu area. Peta 3D ini kemudian dapat digunakan untuk berbagai keperluan, mulai dari perencanaan proyek hingga pemantauan konstruksi.