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The shallow subsurface of present day urban areas has been severely modified by anthropogenic landscaping since pre-historic times. These changes of the geoenvironment can be reproduced by man made ground which shows a complex and heterogeneous distribution and structure. 
For example, grave artificial landscaping in the Eastern Districts of Cologne can be traced back into roman times. It is recordet by deposits filling a trench, which surroundet the former roman fort (see Fig. 1).
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For example, grave artificial landscaping in the Eastern Districts of Cologne can be traced back into roman times. It is recordet by deposits filling a trench, which surroundet the former roman fort (see Fig. 1). 
Fig. 1: 3-D subsurface model of the roman moat in the Eastern district of Cologne Further anthropogenic elements recorded in subsurface structures, deposits and subsurface features are: terraces and irrigation-canals for farming, cuttings and embankments from railway- and road-engineering, dikes and channels for flood defence, landfills for relief levelling, as well as banks and ditches from e.g. military constructions and fortifications, quarries, pits and dumps from mining-activity (see Fig. 2)

Fig. 2: Structural model of the surface features and subsurface in the area of a former minig area. Research-focus is to provide a guideline on how to locate and characterize and model man made ground, by using historic-geographical techniques and the latest Surface Information Systems such as Geographical Information Systems (GIS) and subsurface Geoscientific Information Systems (GSIS) such as GSI3D. 
Fig. 3: Technogenic landuse sequences constructed from topographic maps Timelapse Land-use sequences from historic maps and drawings, historical reports, archaeological excavations as well as from aerial photographs are constructed (Fig. 2). The structures and distribution of man-made ground deriving from the cartographical work provide potential boundaries and outcrops of artificial ground units. These data sets, in combination with borehole information, are integrated into a subsurface modelling software (GSI3D an the respective subsurface viewer), where sediment units can be addressed and distinguished by means of their 3-dimensional relationship, regarding textural, lithological, morphological as well as genetical features and properties.
These anthropogenic heritages have to be systematically addressed, characterized, quantified and qualified in order to understand the complexity of the urban subsurface in needs for a sustainable city-development for it contributes to an improved decision-support in terms of city-planning an city engineering.
List of
publications and posters
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Classon, F., Brunotte, E., Sobisch, H.-G. &
Neber, A. (2005): Zur
dreidimensionalen Modellierung von anthropogenen Ablagerungen in urbanen
Räumen am Beispiel des rechtsrheinischen Kölns.- Geotechnik 2, 2005. Abstract:

Neber, A. Classon, F. Hesemann, J. & Sobisch,
H.-G. (2004) An urban subsurface
in three dimensions. A Surveying and Modelling Concept for the eastern part of
Cologne.-
In: JAKOBS, F.,
RÖHLING, H.-G. & UHLMANN, O. (Ed.): GeoLeipzig 2004 - Geowissenschaften
sichern Zukunft. Schriftenreihe der Deutschen Geologischen Gesellschaft 34,
382.
Classon, F., Boenigk, W., Brunotte, E, Sobisch,
H.-G., Neber, A. (2004):
Modelling Concept for artificial Ground.- Tagungsband Deuqua-Tagung 2004
Poster
NEBER, A., CLASSON,
F., KEMNA, H.-A., KLOSE, S., PERK, M., SCHADE, S., WEBER, B. & SOBISCH, H.-G.
(2004). GEOSUM (Integrated working group for Geo-scienitific Surveying and
Modelling in 3D): A step towards an integrated approach in three dimentsional
subsurface modelling. In: JAKOBS, F., RÖHLING, H.-G. & UHLMANN, O. (Ed.):
GeoLeipzig 2004 - Geowissenschaften sichern Zukunft. Schriftenreihe der
Deutschen Geologischen Gesellschaft 34, 382.
NEBER, A., CLASSON,
F., HESEMANN, J. & SOBISCH, H.-G. (2004). An urban subsurface in three
dimensions, a surveying and modelling concept for the eastern parts of
Cologne. In: JAKOBS, F., RÖHLING, H.-G. & UHLMANN, O. (Ed.): GeoLeipzig 2004 -
Geowissenschaften sichern Zukunft. Schriftenreihe der Deutschen Geologischen
Gesellschaft 34, 383.
Neber, A., Aubel, J., Classon, F.,
Hoefer, S., Kunz, A. & Sobisch, H.-G. (2006): From the Devonian to the
present: Landscape and technogenic relief evolution in an urban environment.-
IAEG 2006 (in press)
NEBER,
A. & CLASSON, F. (2006): Artificial Changes of the
Environment in the Eastern Parts of Cologne - A Depositional and Technological
Journey from the Devonian to the Present.-
Tagungsband
SEAGA
Conference
2006.
Abstract:
-
NEBER, A., HOWAHR,
M. & CLASSON, F. (2006): The Urban Subsurface in Three Dimensions Using GSI3D
- Decision Support for a Sustainable Management Based on 3D Geological/Technological
Structure Models - A Guideline Towards Best Practice.-
-
Tagungsband
SEAGA
Conference
2006.
Abstract: 
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