Hydrogeological Maps
• highly condensed and synthetic information:
= a picture can tell more than thousand words,
a map more than thousand pictures
• information in relation to the geographic location
• picture/display with strong message potential
The World-wide Hydrogeological Mapping and
Assessment Programme
( WHYMAP )
Key ideas
• From regional and continental to global
• Harmonised view of groundwater resources
• Contribution to World Heritage Programme
• International Cooperation
• Wall map, booklet and Web application
WHYMAP
World-wide Hydrogeological
Mapping & Assessment
Programme
UNESCO
Water Sciences
IHP
Earth Sciences
IGCP
IAH
Council +
Commissions
National Chapters
Main Players
since 2000
CGMW
Continental
Subcommissions
Regional VicePresidents
COHYM
Commission on
Hydrogeological
Maps
SC-HYM
Subcommission
on
Hydrogeological
Maps
IAEA
Isotope
Hydrology
Section
+ others, e.g.
IGRAC, GRDC,
Universities etc
major hydrogeological units
Hydogeological
maps of continents
WHYMAP Network
UNESCO
regional
offices
IHP National
Committees
Consortium
Steering
Committee
WHYMAP
executing
unit
Isotope
Hydrology
Section Petra
International
programmes,
organisations,
institutions
IAH
Commissions
National
Committees
CGMW
Döll
GPCC
VicePresidents
(8 regions)
GRDC
IGRAC
Regional
organisations,
e.g. OSS,
SADC, OAS ..
regional VicePresidents
Individual
freelance
contributors
groundwater
resources maps
1/50 M
&
1/25 M
WHYMAP GIS
Web-Mapping application
for visualisation/distribution
of WHYMAP data &
information pool
on hydrogeological
mapping
explanatory
notes / booklet
interactive
CD-ROM
small sketch-maps
for publications, ...
WHYMAP GIS
Topography
Geology
IGC Florence
August 2004
1. Special Edition
Groundwater
Map
of the World
Aquifers
Check, correct, complete
GW Abstraction
GW Quality
Relation GW – surface w.
GW Recharge
4.WWForum
Mexico 2006
Age of groundwater
Web mapping application
2. Special Edition
Transboundary
Aquifer Systems
of the World
Check, correct,
International
Geological
Congress
Oslo 2008
complete
Groundwater Map
of the World
1 : 25 000 000
Groundwater Map of the World 1 : 50 000 000,
Special Edition for the IGC Florence, August 2004
Explanations
on the back
Global Map of Transboundary Aquifer Systems
www.whymap.org
First results of WHYMAP
• first global draft on regional hydrogeological setting
• range of aquifer types different on the continents
•
Percentages …
Extracted from the WHYMAP Groundwater Resources Map of the World
First results of WHYMAP
• first global draft on regional hydrogeological setting
• range of aquifer types different on the continents
• nearly all important aquifers and groundwater systems
are trans-boundary (cut by political borders)
•
Transboundary Aquifer Systems
Source: UNESCO / ISARM 2001
First results of WHYMAP
• first global draft on regional hydrogeological setting
• range of aquifer types different on the continents
• nearly all important aquifers and groundwater systems
are trans-boundary (cut by political borders)
• river basin boundaries often different from aquifer
boundaries
First results of WHYMAP
• first global draft on regional hydrogeological setting
• range of aquifer types different on the continents
• nearly all important aquifers and groundwater systems are
trans-boundary (cut by political borders)
• river basin boundaries often different from aquifer boundaries
• global recharge distribution
Mean annual groundwater recharge
Quelle: Döll et al., 2003
Overlay of Hydrogeological Environments ( WHYMAP )
and Recharge from WaterGAP ( Döll et al.)
The world‘s largest aquifer systems
Great Artesian Basin, Australia
Nubian Sandstone
Aquifer System,
NE-Africa
Regional distribution
of global
freshwasser - resources
Exact
figures?
Quelle: Igor A. Shiklomanov, State Hydrological Institute
(SHI, St. Petersburg) and UNESCO (Paris), 1999.