Mean Annual Groundwater Recharge of Germany 1:1,000,000 (GWN1000)

The map shows the average annual groundwater recharge of Germany for the period 1961 - 1990 as a raster image in a cell range of 1 x 1 km. For this purpose, a multi-step regression model was developed (Neumann, J. 2005). In a first step, the baseflow index (BFI = baseflow / total runoff) was determined as the regression target size as a function of slope gradient, drainage density, land cover, available field capacity, depth to groundwater and the ratio of direct runoff to total runoff. Based on this, two different model variants were developed for low-drainage (R < 200 mm/a) and high-drainage regions (R > 200 mm / a). For R < 200 mm/a, groundwater recharge rates were calculated by multiplying the regional grid-based baseflow index and the area-differentiated total runoff according to BAGLUVA. For the higher values R > 200 mm/a, a second regression equation has been used which, in addition to the base flow index, also requires the BAGLUVA total runoff and the depth to groundwater.
 
Citation proposal
(2019) . Mean Annual Groundwater Recharge of Germany 1:1,000,000 (GWN1000). https://gdk.gdi-de.org/geonetwork/srv/api/records/91DB02B4-48A2-4BE3-81E8-99F400108491
 

Simple

Alternate title
GWN1000
Date ( Publication )
2019-08-15
Edition
v1.0
Identifier
1542502F-0FB5-4230-9B29-2CAFBEA059D8
Other citation details
GWN1000 (c) BGR Hannover 2019
Status
completed Completed

  Point of contact

GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Geologie
GEMET - Concepts, version 2.4 ( Theme )
  • Grundwasser
  • Hydrogeologie
Keywords ( Theme )
  • Mittlere jährliche Grundwasserneubildung
  • HAD
  • HAD 5.5
  • GWN
  • HK1000
Keywords ( Place )
  • Deutschland
Access constraints
Other restrictions
Use constraints
Other restrictions
Other constraints
Allgemeine Geschäftsbedingungen, siehe https://www.bgr.bund.de/AGB - General terms and conditions, see https://www.bgr.bund.de/AGB_en. Die bereitgestellten Informationen sind bei Weiterverwendung wie folgt zu zitieren: Datenquelle: GWN1000 (c) BGR Hannover 2019
Spatial representation type
Grid
Denominator
1000000
Metadata language
ger German
Character set
utf8 UTF8
Topic category
  • Geoscientific information
N
S
E
W


Geographic identifier
Regionalschlüssel / 000000000000
Distribution format
  • TIFF (n/a )

Transfer size
3
OnLine resource
GWN1000 (TIFF)  

GWN1000 im Format TIFF

OnLine resource
Informationen zum Projekt HAD und Bezugsquelle der gedruckten Atlastafel - Information about the project and supply of the printed edition  

Informationen zum Projekt HAD und Bezugsquelle der gedruckten Atlastafel - Information about the project and supply of the printed edition

OnLine resource
Karte im BGR-Geoviewer  

Karte im BGR-Geoviewer

Hierarchy level
Dataset
Statement
-

gmd:MD_Metadata

File identifier
91DB02B4-48A2-4BE3-81E8-99F400108491   XML
Metadata language
German
Character set
utf8 UTF8
Hierarchy level
dataset Dataset
Hierarchy level name
Grundwasser
Date stamp
2025-03-10
Metadata standard name
INSPIRE Metadata Implementing Rules: Technical Guidelines based on EN ISO 19115 and EN ISO 19119
Metadata standard version
n/a

  Point of contact

Website
https://www.bgr.bund.de  
 
 

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