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

IAEA

Isotope

Hydrology

Section

UNESCO

Water Sciences

IHP

Earth Sciences

IGCP

IAH

Council +

Commissions

National Chapters

Regional Vice-

Presidents

COHYM

Commission on

Hydrogeological

Maps

CGMW

Continental

Sub-

commissions

SC-HYM

Subcommission on

Hydrogeological Maps

Main Players

since 2000

+ others, e.g.

IGRAC, GRDC,

Universities etc

major hydrogeological units

Hydogeological

maps of continents

WHYMAP

executing

unit

Steering

Committee

National

Committees

CGMW

regional Vice-

Presidents

Regional

organisations,

e.g. OSS,

SADC, OAS ..

International

programmes,

organisations,

institutions

Individual

freelance

contributors

Isotope

Hydrology

Section

WHYMAP Network

Consortium

IHP National

Committees

UNESCO

regional

offices

Vice-

Presidents

(8 regions)

IAH

Commissions

IGRAC

Petra

Döll

GRDC GPCC

WHYMAP GIS

small sketch-maps

for publications, ...

explanatory

notes / booklet

groundwater

resources maps

1/50 M

&

1/25 M

interactive

CD-ROM

Web-Mapping application

for visualisation/distribution

of WHYMAP data &

information pool

on hydrogeological

mapping

Topography

Geology

Aquifers

GW Abstraction

GW Quality

GW Recharge

Age of groundwater

Relation GW – surface w.

1. Special Edition

Groundwater

Map

of the World IGC Florence

August 2004

Check, correct, complete

WHYMAP GIS

Web mapping application Groundwater Map

of the World

1 : 25 000 000

4.WWForum

Mexico 2006

International

Geological

Congress

Oslo 2008

Check, correct, complete

2. Special Edition

Transboundary

Aquifer Systems

of the World

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

•

Extracted from the WHYMAP Groundwater Resources Map of the World

Percentages …

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)

•

Source: UNESCO / ISARM 2001

Transboundary Aquifer Systems

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

Quelle: Igor A. Shiklomanov, State Hydrological Institute

(SHI, St. Petersburg) and UNESCO (Paris), 1999.

Exact

figures?