Survey of Bangladesh (SOB) has started making 1:25,000 scale topographic map for entire Bangladesh and 1:5,000 scale topographic map for divisional cities by digital mapping system. Under the Improvement of Digital Mapping System of Survey of Bangladesh (IDMS) project technically assisted by JICA, Bangladesh digital topographic maps and digital geospatial data will be disseminated to the users in order to help them undertaking various development works.
Objectives of Improvement of Digital Mapping System (IDMS) Project
The following mapping and surveying activities will be accomplished:
Digital Products (Hard Copy)
Digital Products (Soft Copy)
CLIMATE CHANGE AND ENVIRONMENT
Digital Geo-spatial data like DEM, Orthophoto, thematic maps and Tidal observatory data can help to assess the impacts of climate on our environment and ecosystem.DISASTER MANAGEMENT
By analysing geo-referenced and ortho-rectified images in different time line, the agriculture scientists can estimate the crop yield.COSTAL MANAGEMENT
monitoring, oil spill detection, emergencies, environmental impacts and mapping of reclamation activities.
The researchers and scientists can use this geospatial data for assessment and analysis of water temperature, salinity, hydrology, shoreline changes, soil moisture and potential threats to our coast.
Human health, critical wetland and eco-systems, and economic development of the coastal zone very much depends on the proper utilization of the geospatial data.
The products of IDMS project will be very much useful for Defence Mapping and critical decision making process.
Geographical Information System (GIS), Global Positioning System (GPS) and Geodesy experts of Survey of Bangladesh are capable of producing necessary geospatial data for defence and intelligence requirements.
Orthophoto and DEM of any particular area can be useful for quick assessment of any significant construction of engineering projects like-airstrips, bridge, dam, water, power plant, coal mining, sewer line and industrial zone.
The first phase of site selection and evaluation for any major engineering projects largely depends on geospatial data.
There will be many beneficiaries from the products of digital maps. Only few are mentioned below:
Local Government Engineering Department (LGED): Digital Topographical Base Maps and Database can be effectively used for the planning and construction of road infrastructure throughout the country. DEM and contours can be used in a side range of applications.
Department of Land Records and Survey: Topographical maps along with contours and geodetic control network can be very useful for preparation of International Boundary Strip maps for border demarcation.
Roads and Highways Deparment (RHD): Topographical maps along with DEM can effectively be used by RHD for Road Network planning and infrastructure development. Topographical maps will be used for basic information for land acquisition. DEM can be successfully used road alignment and CUT and FILL assessment.
Department of Environment (DOE): Thematic maps on conservation of natural resources and Land use can be produced by DOE by using IDMS products. Deforestation, contamination of surface water, natural calamities, intrusion of salinity, unplanned urbanization, discharge of untreated sewage and industrial wastes, etc. can be better addressed by using digital topographic maps and database.
Water Development Board (WDB): Digital topographic Map and Database can be used for water modeling and flood control activities. DEM and contours will play an important role in water resource management system.
Department of Forest: Thematic maps on Forest and vegetation along with satellite imageries can be effectively used for natural environmental development through forestation program. Orthophotos of Sundarban, Chittagong Hill Tracts and other forest areas will help better management of forest resources of Bangladesh and in the field of biodiversity conservation.
Department of Meteorology: Digital base will help making weather forecast chart. Precise data from permanent GPS stations can be used for monitoring the plate tectonic movement of earth. More over, GPS data processed by Bernese software can be used for assessing the inospheric condition and quality of air. Tide observation data will help in assessing the global warming also.
Department of Relief and Rehabilitation: DEM of disaster prone areas will help in assessing the damage of catastrophe. Use of topographical maps and DEM will ease the selection of relief distribution points, mobilization of relief and rehabilitation of effected people more efficierilly.
BTTB & Mobile Companies: Topographical maps and DEM will be useful for planning of installation for radio relay stations throughout the country. Topographical maps can be effectively used for tower locations and determination of coverage zone.
Armed Forces: Can plan and demonstrate operations/war games using digital maps. DEM would be very useful for planning of radio relay stations. Bangladesh Air Force can use digital map for flight simulation. Digital topographic maps and databases are useful tools for terrain analysis and decision making process. Digital BAF charts would be very helpful for flight plan.
Bangladesh Police & RAB: Digital maps for vehicle navigation system of crime prone zones are very effective tools for criminal tracking. Road network map along with DEM would be useful for finding criminal and subjects.
IDMS TIME SCHEDULE
Bangladesh Digital Mapping Assistance Project
SOB accomplishes IDMS project, and acquires sufficient technologies to maintain the mapping process.
To know more about the technically assisted projects of JICA, Bangladesh for SOB press here.
Surveyor General of Bangladesh
Brig Gen Zakir Ahmed,psc