Services
Survey and Area Mapping
Survey and Area Mapping Elucidation
Surveys and mapping of areas with the help of technology can provide a more accurate picture of the survey area. The results of this overview will also help structure work and make better decisions.
Survey and Area Mapping Service Scope
PT SUCOFINDO’s regional survey and mapping services cover the following areas:
Unmanned Aerial Vehicles (UAVs)
Unmanned Aerial Vehicle (UAV) mapping using unmanned aircraft on a large scale with a faster and more efficient time than conventional survey methods in a particular location/region. UAV services have a scope that includes the following:
- Definition and scope of work, including risk identification and methods of carrying out acquisitions in the field (combination or choice):
- LiDAR
- Thermal
- Orthophoto
- Planning
- Preparation of flight plans
- Quality control systems and mechanisms
- Field survey preparation
- Licensing management
- Mobilization of the implementation team
- Implementation of field survey
- Installation and Benchmark Point Measurement (BM) and Ground Control Point (GCP)
- b. Acquisition of aerial data according to the specified method and SOP
- Demobilization of the field team
- Data processing
- Reporting
LiDAR (Light Detection and Ranging)
Light Distance and Ranging (LiDAR) is an object detection method that uses the principle of laser light reflection to measure the distance of objects on the earth’s surface. This system can perform measurements and mapping with fast, accurate results and can be monitored in real-time.
SUCOFINDO uses LiDAR technology which is integrated with unmanned aircraft to acquire an area as well as for inspection activities with the following scopes:
- Definition and scope of work, including risk identification
- Planning
- Preparation of flight plans
- Quality control systems and mechanisms
- Field survey preparation
- Licensing management
- Mobilization of the implementation team
- Implementation of field survey
- Installation and Measurement of Benchmark Point (BM) and Ground Control Point (GCP)
- Acquisition of aerial data according to the specified method and SOP
- Demobilization of the field team
- Data processing
- Reporting
Satellite Imagery
Satellite imagery results from recording or shooting objects from sensor devices mounted on satellites. The satellite image data can be used in various fields such as defense and security, air and sea transportation, mining, disaster management mapping, agriculture, forestry, environmental monitoring, and land change detection.
In practice, many types of satellites (which are generally classified according to their accuracy into three, namely high, medium, and low resolution) are used to record the appearance of the earth’s surface. The different types of satellites used will affect the results of the image recording based on the resolution level.
- Definition and scope of work, including risk identification
- Planning (including system quality control)
- Selection and ordering of satellite images for distributors
- Ground Check Survey (if needed)
- Measuring point coordinates
- Hue sampling and land cover
- Data processing
- Geometric Correction
- Radiometric Correction
- Digitizing (to vector)
- Reporting
Bathymetric Survey
Bathymetric surveys are mapping and data collection activities in water areas. Bathymetric surveys are principally carried out through generalization activities to collect information on the depth of the seabed from the surface to obtain an overview of the topography of the seabed and the location and extent of the objects in it.
- The definition and scope of work, including administration, include:
- Survey personnel and team
- Survey budget planning
- Licensing and coordination with related parties
- Planning
- Collection of survey area base maps and supporting data such as tides, current data, and reference coordinate point data
- Quality control systems and mechanisms, including determining the classification and level of survey accuracy
- Planning an announcement lane
- Planning the distribution of BM installation, tidal station locations, and current and technology observation locations
- Mobilization of the implementation team
- Preliminary survey Pelaksanaan
- Conducting socialization and licensing regarding the survey plan to the relevant agencies
- Site survey to orient the location of control points, shorelines, planned installation of tidal stations, currents, and others
- Survey equipment installation and installation
- Implementation of field survey
- Acquisition of bathymetry data following the announcement plan that has been prepared and still refers to the method and SOP that have been determined
- Monitoring tidal data, currents, and others
- Demobilization of the field team
- Data processing
- Reporting
Tidal Survey
The tidal survey is an activity to monitor and collect data on the rise and fall of sea level through tidal observations over a certain period to determine the datum chart and tidal correction values.
- The selection of the location and number of tidal stations takes into account the following:
- Coverage of areas that have the same tidal properties
- Unaffected by discharge, waves, and settlement due to unstable seabed sediments
- Easy to do station supervision and maintenance
- Tie the tidal palm to the reference point (BM) by leveling following SNI 6988:2004, vertical control net with auto level equipment
- Equipment installation and calibration
- Carry out the description of the tidal station and record the problems that occur
- Recording and initial analysis of tidal data every day. Including monitoring data from all installed tidal stations
- Conduct final analysis of tidal data after the monitoring period ends
- Reporting
Morphometry Sea Base
Seafloor morphometry is a mathematical measure of the configuration of the earth’s surface on the seabed. Morphometric data are needed in seabed space, including for research on marine geology, oceanography, biology, and other related scientific disciplines. This measurement is intended to obtain variations and changes in the seabed’s shape, including dimensional measurements and quantitative analysis.
- Input
- Resource data
- Enter audio data
- Input tidal monitoring data, currents, and other hydro-oceanographic data
- Process and Analysis
This data processing stage includes topographic surveys (coastal areas) and bathymetry (seabed and tides). Sounding and tidal data will be processed and overlapped to produce bathymetric maps, which will be analyzed as needed.
- Output
Bathymetric maps, current pattern maps, tidal data (hardcopy, softcopy, and electronic form).