Websites
1. Freitas M.I., (2000), An Alternative to Updating Topographic Maps Using SPOT Images, International Archives of Photogrammetry and Remote Sensing, XXXIII/B4, (Accessed: 2 June 2026).
2. Ottichilo, W. & Khamala, E., (2002), MAP UPDATING USING HIGH RESOLUTION SATELITE IMAGERY A CASE OF THE KINGDOM OF SWAZILAND. (Accessed: 2 June 2026).
3. Google (2022), Google Earth. (Accessed: 2 June 2026).
4. National Land Survey of Finland. (2022), Map updating. (Accessed: 2 June 2026).
5.Gao, M., Xu, X., Klinger, Y. et al, (2017), High-resolution mapping based on an Unmanned Aerial Vehicle (UAV) to capture paleoseismic offsets along the Altyn-Tagh fault, China. (Accessed: 2 June 2026).
6. Ngondi, S., Makanga, J., Sweta, L., Buyengo, J., Mtaroni, V. and Wahome, A., (2019), Topographical Map Updating Using Sentinel 2A. (Accessed: 2 June 2026).
7. Jasim, O., (2007), Digital Geomatics Trends for Production and Updating Topographic Map by Using Digital Generalization Procedures. (Accessed: 2 June 2026).
8. Lunar and Planetary Institute, (2023), Topography and Satellite Images. (Accessed: 2 June 2026).
9. Shrestha, K.G. (no date) Updating of topographic maps in Nepal, Journal on Geoinformatics, Nepal. (Accessed: 2 June 2026).
10. Author links open overlay panelD.A. Holland et al. (2006), Updating topographic mapping in Great Britain using imagery from high-resolution satellite sensors, ISPRS Journal of Photogrammetry and Remote Sensing. (Accessed: 2 June 2026).
12. Stadia Maps (2025), 2025 satellite imagery map refresh. (Accessed: 2 June 2026).
13. EOS Data Analytics (2026), EOSDA LandViewer. (Accessed: 2 June 2026).
15. U.S. Geological Survey (2026), The National Map. (Accessed: 2 June 2026).
16.. Copernicus Sentinel Missions (2026), Sentinel Online. (Accessed: 2 June 2026).
19. Stadia Maps (2025), 2025 satellite imagery map refresh. (Accessed: 2 June 2026).
21. GISGeography, (n.d.), GIS Dictionary – Geospatial Definition Glossary. (Accessed: 2 June 2026).
