National scale potential recharge values for France

A national scale map that shows yearly LTA potential recharge values (mm/year) calculated over France. Values are calculated at daily time step and averaged over the period 1981 – 2010 The map presents the mean yearly potential groundwater recharge (refers to the part of the precipitation not stored in the soil, nor used by the vegetation) that infiltrates to potentially reach the aquifers calculated over the period 1981-2010 and at the spatial scale of 8 x 8 km grid cells and provided in mm/years
 
Citation proposal
Bureau de Recherches Géologiques et Minières (BRGM) (2021) . National scale potential recharge values for France. https://services.mspdata.eu:/geonetwork/srv/api/records/60f54436-7658-4069-9f49-517d0a010833

Simple

Date ( Publication )
2021-04-07
Edition
Version 1.0
Presentation form
modelDigital Digital model

  Custodian

GEMET - INSPIRE themes, version 1.0
  • Hydrography , Geology
Spatial scope
  • National
INSPIRE priority data set
  • Location of water bodies
GeoERA Keyword Thesaurus
  • recharge , national , water budget , resource , resource management
European Geoscience Registry - Projects
  • TACTIC
Keywords
  • Groundwater; Potential recharge; Great Britain; Long term average;
Use constraints
otherRestrictions Other restrictions
Other constraints
Please contact https://www.brgm.fr
Access constraints
otherRestrictions Other restrictions
Other constraints
Please contact https://www.brgm.fr
Spatial representation type
grid Grid
Metadata language
fre French
Topic category
  • Environment
N
S
E
W


Vertical extent

Minimum value
0.01
Maximum value
8
Distribution format
  • ASCII GRID (10.3 )

OnLine resource
EGDI platform  

EGDI platform

Hierarchy level
Dataset

Conformance result

Date ( Publication )
2010-12-08
Explanation
See referenced specification
Statement
Effective precipitation is simulated at the daily time step for each 8x8 km gridcell, using the averaged result of three simple water balance models (Thornthwaite (1948), Edijatno & Michel (1989) and Dingman (2002)) and considering the maximum soil water content (French national soil map, DoneSol INRA (2014)). Water balance models are forced using the SAFRAN meteorological reanalysis data set available at the same resolution (Vidal et al., (2010)). To estimate an effective precipitation infiltration ratio (EPIR), average IDPR values (Mardhel et al., 2021) are compared to base flow computed using the Wallingford method (Gustard et al., 1992) on a set of representative and non-influenced French river basins. The EPIR values are then projected over the 8x8 km grid and multiplied by effective precipitation to obtain potential recharge.

Metadata

File identifier
60f54436-7658-4069-9f49-517d0a010833   XML
Metadata language
eng English
Character set
utf-8 UTF8
Hierarchy level
dataset Dataset
Date stamp
2021-10-13
Metadata standard name
ISO 19115/INSPIRE_TG2/CZ4
Metadata standard version
2003/cor.1/2006

  Point of contact

 
 

  Overviews


Provided by

Access to the portal

Associated resources

Not available