Landscape with 3d model

Niedersachsen Wasser

We map the ground beneath your feet.

What we do

Our services

3D Modell Gitternetz 3D Modell Struktur

3D-visualisation and construction of structural geological models

Correlation of drill logs and further geological data (geophysics, geoelectrics, pedology…) in a dense network of cross sections and subsequent triangulation in three-dimensional shells

Digital revaluation of geological data

Visualisation of geological data for near-surface regions and processing of archive material for usage in state-of-the-art geographic information systems

Sketch of a map 3d element over map

Evaluation and interpretation of scientific information

Analysis of specific data in the fields of geology, engineering geology, pedology and water management

The way we work

Our methods

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Technical

  • Geomodelling using SubsurfaceViewer® MX
  • Surface interpolation using SubsurfaceViewer® MX and Golden Software Surfer®
  • Processing of geological data using ESRI® ArcGIS™, QGIS™, etc.
  • Groundwater modelling using Processing Modflow™, Freewat, etc.
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Geological

  • Correlation of large drill log data sets within geological cross sections
  • Conversion of borehole data into lithostratigraphic model units
  • Transformation of these units in established hydrostratigraphy
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Analytical

  • Evaluation of superficial deposits out of 3D-models (according to HÖLTING et al.)
  • Voxel-based parameterisation of the subsurface (kf-value, electr. conductivity, etc.)
  • Hydrogeological model-preparation as basis for groundwater modelling
Subsurface model of the city of Oldenburg

Model example

The challenge
A first look at the urban underground

The city of Oldenburg is a densely populated urban territory with an area of more than 100 km². Numerous conduits – drinking water pipelines, sewers, power lines etc. – as well as buildings and deep foundations come into a conflict of use in the subsurface.

Therefore the modelling of the municipal area is the first step in transferring the urban subsurface into a structural model. Especially the spacious sealing of soils and climate-induced heavy precipitation events issue a challenge to the urban surface drainage. Among others the goal of the project was to investigate the seepage potential of the near-surface layers to achieve a relief for the public waste water systems.

Input data
3D model of the city of Oldenburg
We used this data
  • 5464 drillings – conforms a density of ~60 [Bhrg/km²]
  • 105 geoelectrical measurements
  • 168 cross sections
  • Digital terrain model in a resolution of 12.5 m
  • Geological map on the scale of 1:50.000
  • Hydrogeological informations from the water right applications of the two intraurban waterworks Donnerschwee and Alexanderfeld
Geology
This is how it looks below Oldenburg

Within the city of Oldenburg 20 geological units were identified. For the question of the project, the extension of near-surface groundwater retardant layers – like Drenthe boulder clay – were of special interest.

The Oldenburger Geest on the northern side of the river Hunte displays wide areas of boulder clay, which consists of mainly sandy to silty material. The clay deposits form a mostly impermeable surface layer.

In the area of Hunte-Leda-Moorniederung, fluvial sediments and peat deposits are most common. In the deeper subsurface are mighty deposits of the late Elsterian Lauenburg clay, which appear to crop out in the south-western part of the study area.

What we’ve done so far

Our references

Lower saxony

More informationen

Model area
Number of drillings
Number of cross sections Question mark icon
Number of geol. model units Question mark icon
Purpose and application
Client

Drinking water dispensers for schools

Drinking water dispenser in a school in Dinklage

Drinking water as food number 1 is an indispensable part of daily life.

The Niedersachsen Wasser GmbH and its project partner OOWV pursue the goal of teaching children and adolescents the importance of drinking water for health care and sustainable nutrition in their everyday school life. The use of drinking water dispensers should replace the consumption of sugary and high calorie sodas and spritzers. The aim of the initiative is to ensure that the important food no. 1 drinking water is available at all times and, in addition, information boards provide a broad knowledge of the properties of water.

If you have any questions about the products used, cost models, financing and funding opportunities, please do not hesitate to contact Jörn Logemann.

Who we are

Contact us

Egon Harms

Egon Harms

Geologist - authorised officer -

Diploma in geology with focus on hydrogeology and engineering geology at the Technical University of Braunschweig.

harms@niedersachsen-wasser.de
Malko Bischke

Malko Bischke

Geoscientist

M.Sc. geosciences with focus on sedimentology, engineering geology, hydrogeology and geophysics at the University of Bremen.

Phone: 0441 5707-521 bischke@niedersachsen-wasser.de
Johannes Beienz

Johannes Beienz

Geoscientist

M.Sc. geosciences with focus on hydrogeology, engineering geology, glaciology and marine geology at the University of Bremen.

Phone: 0441 5707-504 beienz@niedersachsen-wasser.de
Jörn Logemann

Jörn Logemann

Project/Sales
drinking water dispensers

Phone: 04401 916-373 logemann@niedersachsen-wasser.de

Karsten Specht

- CEO -

Phone: 04401 916-217 specht@niedersachsen-wasser.de
Rudi Hockmann

Rudi Hockmann

- Project EINFACH HEIMAT/Benefit World Manager -

Phone: 04401 916-472 hockmann@niedersachsen-wasser.de

Stefan Schwanke

- authorised officer -

Phone: 04401 916-236 schwanke@niedersachsen-wasser.de
Niedersachsen Wasser Logo
Niedersachsen Wasser Georgstraße 4 26919 Brake

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