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.

INSPIRE

Identification

File identifier
91DB02B4-48A2-4BE3-81E8-99F400108491 XML
Hierarchy level
Dataset
Online resource
Resource identifier
code

1542502F-0FB5-4230-9B29-2CAFBEA059D8
Metadata language
Deutsch
Spatial representation type
Grid
Encoding
Format

TIFF
Version

n/a
Projection
code
EPSG:25833
 

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

GEMET - Concepts, version 2.4

  • Grundwasser

  • Hydrogeologie

Other keywords

Theme

  • Mittlere jährliche Grundwasserneubildung

  • HAD

  • HAD 5.5

  • GWN

  • HK1000
Place

  • Deutschland
 
 

Geographic coverage

N
S
E
W
thumbnail


 

Temporal reference

Temporal extent
Temporal extent
Date (Publication)
2019-08-15
 

Quality and validity

Lineage

-
Denominator
1000000
 

Conformity

Conformity
Conformity
 

Conformity

Conformity
Conformity
 

Restrictions on access and use

Access constraints
Es gelten keine Zugriffsbeschränkungen
Access 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

 

Responsible organization (s)

Contact for the resource
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

fis.hy@bgr.de

 

Responsible organization (s)

Contact for the resource
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

fis.hy@bgr.de

 

Metadata information

Contact for the metadata
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

geodatenmanagement@bgr.de

Date stamp
2025-03-10
Metadata language
Deutsch
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

GWN HAD HAD 5.5 HK1000 Mittlere jährliche Grundwasserneubildung
GEMET - Concepts, version 2.4
Grundwasser Hydrogeologie
GEMET - INSPIRE themes, version 1.0
Geologie

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Associated resources

Not available