1 / 17

Willi Struckmeier President International Association of Hydrogeologists,

Global Overview on the Future of Groundwater Sustainability. Willi Struckmeier President International Association of Hydrogeologists, The International Groundwater Association Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)

robyn
Download Presentation

Willi Struckmeier President International Association of Hydrogeologists,

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Global Overview on the Future of Groundwater Sustainability Willi Struckmeier President International Association of Hydrogeologists, The International Groundwater Association Bundesanstalt für Geowissenschaften und Rohstoffe (BGR) (Federal Institute for Geosciences and Natural Resources)

  2. wetlands 0,033% soil moisture 0,05% atmosphere 0,04% Recall the Facts of Groundwater vs Other Water Resources lakes 0,26% fresh groundwater 30,1% rivers 0,0057% snow and ice ( + glaciers and permafrost ) 69,5% Volume of water worldwide: 1400 Million km³ (100%) Freshwater: 35 Mio. km³ (2,5%) Saline groundwater: 14 Mio. km³ (1%) Saltwater of oceans and salt lakes: 1351 Mio. km³ (96,5%) Source: Water for People, Water for Life – UN World Water Development Report (WWDR); UNESCO 2003.

  3. A global view on groundwater • groundwater: resource and commodity • groundwater reserves are huge • how much GW can be used sustainably ? • quantification of resources / reserves • groundwater quality • poor groundwater governance • - insufficient data • - transboundary • - groundwater not valued • - no adequate investment • - poor management • - weakness of capacities, institutions, regulations, enforcement

  4. The global Groundwater Resources Map 1/25 M

  5. IHP National Committees Vice Presidents (8 regions) WHYMAP IAH Commissions IGCP Steering WHYMAP executing unit UNESCO Regional Offices National Committees Committee Consortium IAEA Isotope Hydrology Section CGMW Regional Vice Presidents GRDC IGRAC International programmes, organisations, institutions Regional organisations, e.g. OSS, SADC, OAS … Individual freelance contributors Universities The WHYMAP Network

  6. How much water / groundwater is globally and sustainably available ? = enough water for all, more than 6.000 m3 water per capita and year, about 2.000 m3 groundwater per capita and year

  7. 11 10 1 2 9 3 8 7 4 5 6 Regional distribution of groundwater

  8. River basins vs groundwater basins

  9. Matching river basins and aquifer systems • Substantial differences between TB river basins and TB groundwater basins • particularly large deviation in dry regions • uncoupling of surface from deep groundwater regimes • but: water resources (surface water and groundwater) must be managed coherently

  10. Top 10 countries with highest groundwater abstraction J. Margat: Les eaux souterraines du Monde, UNESCO & BRGM, 2008

  11. Sustainable use of groundwater for irrigation ? J. Margat: Les eaux souterraines du Monde, UNESCO & BRGM, 2008

  12. Conclusions • hydrogeological conditions and conceptual hydro- geological models should be available on all continents as a basis for groundwater planning • more coherent knowledge and common methodologies for managing transboundary groundwater resources • huge GW resources stored mainly in sedimentary basins, even in desert regions, but resources are endless: sustainable use required • how to manage irrigation from groundwater in a sustainable way?

  13. WHYMAP WebMapping Application Thank you more information available at www.whymap.org Contact: whymap@bgr.de

More Related