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

INSPIRE
SDS

INSPIRE

Identification

File identifier: 91DB02B4-48A2-4BE3-81E8-99F400108491 XML

Hierarchy level: dataset Dataset

Online resource

Resource identifier

code: 1542502F-0FB5-4230-9B29-2CAFBEA059D8

Metadata language: ger German

Spatial representation type: Grid

Encoding

Format: TIFF

Version: n/a

Projection

Classification of data and services

Topic category

Geoscientific information

Classification of data and services

Coupled resource

Classification of data and services

Coupled resource

Keywords

GEMET - INSPIRE themes, version 1.0 ( Theme )

Geologie

GEMET - Concepts, version 2.4 ( Theme )

Grundwasser
Hydrogeologie

Other keywords

Keywords ( Theme )

Mittlere jährliche Grundwasserneubildung
HAD
HAD 5.5
GWN
HK1000

Keywords ( Place )

Deutschland

Geographic coverage

Temporal reference

Temporal extent

Date ( Publication ): 2019-08-15

Quality and validity

Lineage: -

Denominator: 1000000

Conformity

Restrictions on access and use

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