Groundwater resources in the ECOWAS region

The map “Groundwater resources in the ECOWAS region” captures and standardises existing groundwater data of West Africa and gives a consistent regional overview on the groundwater resources. It provides a quantitative assessment of aquifer productivity using a combination of aquifer flow type and expected borehole yield. The map highlights the suitability of aquifers for water supply on different scales while at the same time showing the physical limits of groundwater development. Map elaboration comprised the harmonisation of existing continental and regional geological maps and the attribution of hydrogeological units with expected yield data compiled from a literature meta-survey. Insert maps highlight the geological structure, geogenic background levels of arsenic and fluoride, and groundwater recharge.

INSPIRE

Identification

File identifier
794a6359-fd05-4851-8790-9281d1c7717b XML
Hierarchy level
Dataset
Online resource
Resource identifier
code

21d99f16-3845-59df-2087-1f24fa5454e0
code

https://doi.org/10.25928/GWR-ECOWAS .1

Metadata language
fra
Metadata language
English
Spatial representation type
Vector
Encoding
Format

PDF
Version

n/a
Format

Shapefile
Version

n/a
Projection
code
EPSG:4326
 

Classification of data and services

Topic category
  • Geoscientific information
 

Classification of data and services

Coupled resource

Coupled resource
 
 

Classification of data and services

Coupled resource

Coupled resource
 
 

Keywords

GEMET - INSPIRE themes, version 1.0

  • Geologie

  • Geology

  • Géologie

GEMET - Concepts, version 2.4

  • Grundwasser

  • Groundwater

  • Eaux souterraines

  • Hydrogeologie

  • Hydrogeology

  • Hydrogéologie

Other keywords

Place

  • Afrika

  • Africa

  • Afrique

  • ECOWAS

  • CEDEAO
Theme

  • Aquifer

  • Aquifère

  • Groundwater recharge

  • Recharge des eaux souterraines

  • Geogenic background values

  • Fond géochimique

  • Groundwater resources

  • Ressources en eaux souterraines

  • Groundwater yield

  • Rendement

  • Aquifer media type

  • Type de milieu aquifère

  • Lithology

  • Lithologie

  • Productivity

  • Productivité

  • Sedimentary basins

  • Bassins sédimentaires

  • Fluoride

  • Fluorure

  • Arsenic

  • Opendata

  • Données ouvertes
 
 

Geographic coverage

N
S
E
W
thumbnail


 

Temporal reference

Temporal extent
Temporal extent
Date (Publication)
2022-03-01
 

Quality and validity

Lineage

L'élaboration de la carte comprenait l'harmonisation des cartes géologiques continentales et régionales existantes et l'attribution des unités hydrogéologiques avec les données de rendement attendu compilées à partir d'une méta-enquête bibliographique. Map elaboration comprised the harmonisation of existing continental and regional geological maps and the attribution of hydrogeological units with expected yield data compiled from a literature meta-survey.
Denominator
5000000
 

Conformity

Conformity
Conformity
 

Conformity

Conformity
Conformity
Explanation

siehe dazu die angegebene Durchführungsbestimmung
 

Restrictions on access and use

Access constraints
Es gelten keine Zugriffsbeschränkungen
Access constraints

Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0). Die bereitgestellten Informationen sind wie folgt zu zitieren / The information provided must be quoted as follows / Les informations fournies doivent être citées comme suit: BGR, BGS, BRGM, EAWAG & UNESCO (2022): Ressources en eaux souterraines dans la région de la CEDEAO – Groundwater resources in the ECOWAS region. 1 : 5 000 000. DOI: 10.25928/GWR-ECOWAS.1
Access constraints

{"id": "cc-by-sa/4.0", "name": "Creative Commons Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International (CC-BY-SA 4.0)", "url": " http://creativecommons.org/licenses/by-sa/4.0/ ", "quelle": "BGR, BGS, BRGM, EAWAG & UNESCO (2022): Ressources en eaux souterraines dans la région de la CEDEAO – Groundwater resources in the ECOWAS region. 1 : 5 000 000. DOI: 10.25928/GWR-ECOWAS.1"}

 

Responsible organization (s)

Contact for the resource
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

whymap@bgr.de

Organisation name

BGR, BGS, BRGM, EAWAG & UNESCO
Email

whymap@bgr.de

 

Responsible organization (s)

Contact for the resource
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

whymap@bgr.de

Organisation name

BGR, BGS, BRGM, EAWAG & UNESCO
Email

whymap@bgr.de

 

Metadata information

Contact for the metadata
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

geodatenmanagement@bgr.de

Date stamp
2025-03-12
Metadata language
fra
Character set
UTF8
 
 

SDS

Conformance class 1: invocable

Access Point URL
Endpoint URL
Technical specification
 

Conformance class 2: interoperable

Access constraints

Limitation
 

Use constraints

Limitation
 

Responsible custodian

Contact for the resource
 
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords

Aquifer Aquifer media type Aquifère Arsenic Bassins sédimentaires Données ouvertes Fluoride Fluorure Fond géochimique Geogenic background values Groundwater recharge Groundwater resources Groundwater yield Lithologie Lithology Opendata Productivity Productivité Recharge des eaux souterraines Rendement Ressources en eaux souterraines Sedimentary basins Type de milieu aquifère
GEMET - Concepts, version 2.4
Eaux souterraines Groundwater Grundwasser Hydrogeologie Hydrogeology Hydrogéologie
GEMET - INSPIRE themes, version 1.0
Geologie Geology Géologie

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Associated resources

Not available