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RECTAS rectas

RECTAS www.rectas.org. Trends in Surveying and Mapping in Nigeria Prof. Isi A. Ikhuoria Executive Director, RECTAS, Ile-Ife, Nigeria e-mail: edrectas@rectas.org +2348033712799. Colonial: 1860-1960 Post-Colonial: 1960-2011. Mapping Authorities Survey Framework and Techniques

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RECTAS rectas

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  1. RECTAS www.rectas.org Trends in Surveying and Mapping in Nigeria Prof. Isi A. Ikhuoria Executive Director, RECTAS, Ile-Ife, Nigeria e-mail: edrectas@rectas.org +2348033712799

  2. Colonial: 1860-1960Post-Colonial: 1960-2011 • Mapping Authorities • Survey Framework and Techniques • Education and Training • Survey & Mapping Professionalism • Resource survey and mapping • Map & Survey Data Use:

  3. Colonial: 1860-1960 • Mapping Authorities: • Directorate of Overseas Surveys in UK • Federal Surveys Department, Lagos, Nigeria • Survey Framework and Techniques • Traditional tools (field sketches by Dos) • Geodetic controls (analogue instruments) • Aerial survey (Canadian aid, 1940s) • Regional Survey Departments • Densification of control networks

  4. Colonial Regime (contd.) • Education and Training • In-house training • Training at DOS, UK • Survey School, Oyo (1908) • Professionalism of Survey & Mapping • Survey School, Oyo (1908) • Nigerian Institution of Surveying (1934) • Registered Surveyors

  5. Colonial Regime (contd.) • Resource survey and mapping • planimetric mapping (<1860-1930s) • topographic mapping (>1940 1:100,000, 1:50,000) • Geological survey and mapping • transportation and resource projects • roads and railway routes • mineral resource (coal, tin, etc) mining • Maps & Survey Data Use • - administration • - planning • - development and management

  6. Map & Survey Data Use • Administrative maps: • Colony of Lagos • Southern Protectorate [Lt Henry Cook, et al from sketches of District officers (DOs)], 1911 • Nigeria(amalgamated) • 3 Regions (northern, eastern and western regions) • Provinces

  7. Map & Survey Data Use (contd.) • Planning • Forest reserve and plantations demarcation • Agricultural plantations (cocoa, oil palm, rubber, etc) • Townships (cadastre, infrastructure) • Development and Management • Utilities, housing, infrastructure, etc

  8. Post Colonial: 1960-2011 • Mapping Authorities: • DOS (mapping of north-east till 1975) • Federal Surveys Department • Regional/State Survey Departments • Geological Survey Department • Forestry Department • National Population Commission • Private Sector (petroleum industries) • Regional Survey Departments • Densification of control networks

  9. Post Colonial Regime (contd.) • Survey Framework and Techniques • Geodetic controls (analogue instruments) • Aerial surveys (Canadian aid, 1960s, Federal & State Govts. > 1970s. 1:2000, 1:6000, 1:10000, 1:25,000 photography) • State Survey Departments • Densification of control networks • Use of satellite imagery (foreign sources) • NASRDA Space programme (32m, 5m-2.5m) • 13 AFREF (GNSS core stations) • GSDI • GIS Policy

  10. Post Colonial Regime (contd.) • Education and Training • In-house training • Federal School of Surveying (ND, HND, PGD) • University Degree (ABU, UNN, Unilag + 5) • Polytechnic (Kadpoly + 4) • RECTAS (1972) - technician - technologist - PGD - MSc

  11. Survey & Mapping Professionalism • Professionals • Registered Surveyors (< 3000) • Photogrammetrist • Cartographers • Geographers • GIS Experts • Professional Associations: • NIS, SURCON • Nigerian Cartographic Association • Geoinformation Society of Nigeria Yet to have official recognition at Federal & State Survey Offices

  12. Resource Survey and Mapping • Planimetric (population census) • Topographic (digital conversion of 1:50,000, 1:25,000) • Geology and mining • Forestry (plantations, landuse/landcover with radar) • Agriculture (farm settlements, etc) • Petroleum, etc

  13. Maps & Survey Data Use • Administration • Nigeria • States • Local Councils • Planning • Forestry (plantations, landuse - NigSat1) • Agriculture • Atlases, routes & navigation • Land administration (AGIS, Lagos, EGIS,OGIS, NGIS)

  14. Development and Management • Utilities, housing, infratructure, etc • Communication (mobile phone) • Tourism, web-GIS (Lagos state) • Marketing (brewery products, etc) • Oil and gas (inventory & services) • Health facilities • Land reform • Disaster management • EIA

  15. Rate of adoption of Geoinformatics % 34 “critical mass” occurs A B C D E Time Challenges • Potentials • GI technology diffusion • Critical mass of GI expertise • RECTAS & other Institutions’ greater relevance • Capacity building • Research (3D GIS , Geospatial fusion, etc)

  16. Conclusion • Paradigm shift • knowledge exchange • indigenous content • e-governance • Land administration, reform (1:10000, 1:5000, 1:2000) • Decision support systems

  17. Thank You

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