Areas of application
Introduction of the split wastewater fee
For legal reasons, the measurement of sealed surfaces for calculating the split wastewater fee has become a high priority for many municipalities. This task can be mastered in a legally binding manner using high-resolution aerial photos provided by IABG. All the roof and soil surfaces of the parcels of land are measured photogrammetrically and identified according to their degree of sealing. We supply the municipality a database of all the chargeable areas which can be used directly for producing fee notifications. Very often these measurements are combined with other municipal themes such as road, green space and pipe cadastres.
Forestry remote sensing
The use of geographic information systems for capturing and managing data is an integrated part of the work of forestry authorities. IABG supports forestry authorities as a competent service provider in the field of forest-related geo information. Next to data capture from aerial photography, the range of services covers the actualization and alignment of data with real estate land registers as well as support of forest analysis and management by defining structural components of forests and definition of tree species. This makes the on-site work of the forest manager much easier. Possible borderlines within the forest are provided to him beforehand. Changes to the population are being visualised and registered accordingly.
GIS-consulting, migration and development
We advise municipalities, authorities and companies in the private sector with the conception and structure of geo-databases (ArcSDE, Oracle). Beyond that, we support our customers with establishing workflows for quality assurance, data analysis and automated map generation.
With our outstanding expertise in GIS development, we help our customers with complex migration processes of GIS applications, databases and data models. Our extensive portfolio in software development includes the use of ArcObjects in the .net environment, XML and database technologies as well as geoprocessing with ArcPy.
Land use mapping
In the DLM-DE working group, existing heterogeneous geodatasets were supplemented so that the data they contain complies with the classification structure of the pan-European land cover mapping, the CORINE Land Cover (CLC). Here, all sorts of different information sources were linked together spatially and the required dataset was reprocessed. In addition to recording the change of land use, IABG was also responsible for implementing the database schema, creating a quality assurance concept and developing software tools for efficient mapping and quality assurance. Thus, in collaboration with the project partners, a pan-Germany geodataset was created that is widely used in the sectors of environment, agriculture and forestry, water pollution control, traffic, security, and spatial planning.
Raster data of population density in Germany (day/night)
Another field of activity of the IABG Geodata Service is the self-commissioned generation of a current Germany-wide raster dataset of the population density. Based on current remote sensing data as well as country-wide and city maps, measurements were made of all settlements using a special settlement typology which took into account local building types and usage types in each case. Ancillary community-specific attribute and statistical data was added to generate a completely new raster dataset that shows the number of inhabitants in a fine raster for day and for night. This data serves in principle for planning purposes (e.g. expansion calculations, radio network planning, noise and pollution, emergency services, evacuation planning) and is thus an essential component in a decision process that does not yet rely on GIS.
In the search for suitable sites for installing solar systems, the IABG Geodata Service provides photogrammetric data of building roofs in different degrees of detail, which is then combined with the corresponding terrain data. By taking into account other relevant factors such as global solar radiation, roof exposition, roof inclination, local shadowing and the usable surface of the roof, the desired solar potential of each roof surface is calculated using a grid-based process. The customer group for this primary planning information consists mainly of municipalities, regional authorities, energy suppliers, and private parties.
Road and green space cadastres
Current information about urban infrastructure, used areas and the identification of individual trees and tree populations, green spaces, and biotopes provide an important basis for the decision processes in urban planning and development. Based on high-resolution aerial photos IABG photogrammetrically measures the entire public road network and the urban green spaces of a municipality. Evaluation of bodies of water, buildings, sports grounds, playgrounds, cemeteries, and tree and shrub populations is added to the municipal database. Another significant component of a road cadastre is the additional mapping of numerous individual objects in the roadside area such as rail networks, street lighting, traffic lights, urban wastewater objects (drains, etc.), power supply networks, and public transport stops.
Topographic mapping (updating)
For the Thuringia State Office for Mapping and Geo-information (Thüringer Landesamt für Vermessung und Geoinformation TLVermGeo) specific qualified staff of IAGB’s Geodata Service was employed in the project of updating topographic maps on a scale of 1:50.000 in order to revise on-site selected maps with an internal capturing software. In doing this, the official capturing rules of the TK50 as well as the Thuringian editing document ACD 13-16 had to be exactly used. The update covered editing individual signatures, localities, the transportation network, borders/conduits, water/relief/vegetation and inscription. The appropriate cartographic generalisation represented a special challenge in this context.
3D city models
For years, IABG has regularly created 3D city models as a basis for microcell planning. The data is used to calculate field strength levels that are the basis for all further planning steps. Modelling is done using photogrammetric measurement of current aerial photos. The position and height of buildings, terrain and bridges is recorded vectorially. This vector data is then converted into rasterised terrain and building models and a combined surface model. Furthermore, current orthophoto mosaics of the cities are generated.
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