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Hydrological reconnaissance for rural water projects using free online information (SamSamWater Foundation)


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Presentation for the 6th Rural Water Supply Network Forum, Kampala, 2011

Free online information can be beneficial in the preparation, design and implementation of rural water projects. Free online sources of meteorological data (rainfall, evaporation), maps (topography, geology), aerial imagery and elevation data are presented together with examples of how this information has been used in rural water projects. This online information can never fully substitute field observations and measurements, but it can provide valuable additional information and make preparation, design and implementation of rural water projects more efficient and successful.

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Hydrological reconnaissance for rural water projects using free online information (SamSamWater Foundation)

  1. 1. Hydrological reconnaissance for rural water projects using free online information Rural Water Supply Network Conference, Kampala, Uganda December 2011 Sander de Haas, Merel Hoogmoed, Harry Rolf
  2. 2. Introduction Sander de Haas Hydrogeologist at PWN Water Supply Company North-Holland. Co-founder of the SamSamWater Foundation. introduction |maps | meteorology| elevation| conclusion
  3. 3. <ul><li>Introduction </li></ul><ul><li>SamSamWater Foundation: </li></ul><ul><li>Advice & information for water & sanitation projects </li></ul><ul><li>Share knowledge and information </li></ul><ul><li>All information (presentation, hyperlinks, etc.): </li></ul><ul><li> </li></ul>introduction |maps | meteorology| elevation| conclusion
  4. 4. <ul><li>Free online information </li></ul><ul><li>Rural water and sanitation projects: </li></ul><ul><li>Often little information available </li></ul><ul><li>Obtaining information can be expensive </li></ul><ul><li>A lot of information can be found online (for free): </li></ul><ul><li>- Maps (topographic, soil, geology) </li></ul><ul><li>Meteorological (rainfall, evaporation, temperature) </li></ul><ul><li>Aerial information </li></ul><ul><li>Elevation (DEM) </li></ul><ul><li>No alternative to field measurements or field visits, but can provide additional information and higher efficiency! </li></ul>introduction |maps | meteorology| elevation| conclusion
  5. 5. Maps introduction | maps | meteorology| elevation| conclusion
  6. 8. springs streams contour lines
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  8. 10. <ul><li>Maps </li></ul><ul><li>Topographic maps useful for: </li></ul><ul><li>Planning and navigation </li></ul><ul><li>Geomorphology of the area </li></ul><ul><li>Identification of springs, streams, dams, etc. </li></ul><ul><li>Many more maps available, such as: </li></ul><ul><li>Geology </li></ul><ul><li>Soils </li></ul><ul><li>Vegetation </li></ul><ul><li>Hydrogeological (boreholes) </li></ul><ul><li>etc. </li></ul>introduction | maps | meteorology| elevation| conclusion
  9. 11. Meteorology introduction |maps | meteorology | elevation| conclusion
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  11. 13.
  12. 14.
  13. 15. <ul><li>Meteorology </li></ul><ul><li>Climate data useful for: </li></ul><ul><li>Determination of rainy seasons. </li></ul><ul><li>Potential for rainwater harvesting. </li></ul><ul><li>Estimate the amount of evaporation from lakes. </li></ul><ul><li>Dimensioning roofwater harvesting systems. </li></ul><ul><li>etc. </li></ul>introduction |maps | meteorology | elevation| conclusion
  14. 16. Elevation introduction |maps | meteorology| elevation | conclusion
  15. 19. <ul><li>Elevation </li></ul><ul><li>Elevation data useful for: </li></ul><ul><li>Determination of catchment boundaries. </li></ul><ul><li>Potential sites for dams. </li></ul><ul><li>Layout of pipelines. </li></ul><ul><li>etc. </li></ul>introduction |maps | meteorology| elevation | conclusion
  16. 20. <ul><li>Conclusion </li></ul><ul><li>A lot of useful information is available for free. </li></ul><ul><li>Using this information can’t substitute field measurements. </li></ul><ul><li>It can make planning and field visits more efficient. </li></ul><ul><li>No difficult software required. </li></ul><ul><li>All of you should publish your information online: </li></ul><ul><li>let’s share knowledge and learn from each other! </li></ul><ul><li>This presentation and more information: </li></ul><ul><li> </li></ul><ul><li>More information and questions: </li></ul><ul><li>[email_address] </li></ul><ul><li>or </li></ul><ul><li>+31 6 44 988 559 </li></ul>introduction |maps | meteorology| elevation| conclusion