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UAV flight missions • System solutions • Remote sensing • Aerial mapping • Geoinformation
Applications

Landfill

It is important for landfill operators to keep an eye on filled in volumes. This is independent from what gets filled in, e.g. garbage, sand, soil, construction waste, slag, or other material. Changes over time are of interest to the landfill operator. Based on 3D spatial information one can take proper decisions e.g. to realize the constructional final shape of the landfill or to plan relocation of masses, expansions, or recultivation activities. Inventory documentation and volume documentation are possible to be completed within a short time frame using our UAV-Mapping approach. The flying itself often takes only 2 to 3 hours. This allows for very little disturbances of the landfill operation, if at all, and it increases its operational safety.

Next to volume computations GerMAP delivers a high resolution orthomosaic (image map) as well as 3D-modelings, profiles, contour lines, and custom 3D-visualizations.

 

Landfill

Open Pit

Open pit mining sites permanently require periodic documentation and monitoring. UAV-Mapping helps resolving this highly local task. Up to now this is done via terrestrial surveying or using manned aircraft aerial mapping. UAV-Mapping is a cost-efficient alternative.

The shown example of an open pit mine is of approximately 1 km x 0.6 km in size. The task was to deliver a high accuracy digital surface model (DSM) for volume computations and a high-resolution orthomosaic as planning complement and for visualization. Based on topography and size of area 1 block was flown in this example. Delivered ground sampling distance (GSD) in the orthomosaic was 4 cm resulting from a flying height above ground level (AGL) of 100 m. The flight mission took approximately 20 min flying time.

This minimizes disturbances in open pit mine operations and increases safety of the UAV-Mapping-team as well as the safety of the open pit mine staff. A preliminary overview image, a so-called AirMosaic, was produced on-site to verify data integrity. Accurate ground control points (GCP) got surveyed using GPS. Via GerMAP's UAV Internet-Service a highly accurate digital surface model with ± 4.2 cm height accuracy and 25 cm raster spacing was achieved. The level of detail in the DSM allows for sufficiently precise volume computations.

 

Open Pit

Road construction

Road construction has – from a mapping point of view – similar constraints as railway construction. It modifies, creates or renews, local infrastructure, the maps of which are to be created or updated. Further, installments of machinery and material need to be documented and monitored. UAV-Mapping enables such spatial intelligence tasks. The spatial reference defines the new or modified road path and integrates it into the existing, local surroundings.

UAV-Mapping helps accomplishing this task in an efficient yet complete manner and delivers supportive 3D-visualizations.

 

Road construction

Railway

Railway-projects are of corridor nature. At distinct places bigger amounts of equipment and material get stored, stations get newly built or renovated. All of this has influence onto neighboring, existing infrastructure. The interest of the railway operator resp. of its construction contractor is to update local changes. UAV-Mapping often is ideally suited to document and to monitor such local geospatial dynamics.

For documentation and GIS-updating purposes German Railway required latest information. UAV-Mapping delivered a 40 cm raster DSM and a 2.5 m raster DTM as well as an orthomosaic with 5 cm ground sampling distance (GSD). All of this was derived from 1140 aerial images flown in 4 blocks on a cloudy day.

The construction contractor of the Swedish Botinabanan railway project, a new railway track alongside the Botnian Sea, a part of the Baltic Sea, needed to monitor various of its construction sites. With UAV-Mapping one could identify, document, and deliver volumes of gravel of different granularities, also during winter at minus Celsius degrees.

 

Railway

Environment

Renaturalization of our environment helps us improving our living conditions and preserving it for future generations. UAV-Mapping delivers valuable spatial information and documentation for this process. It allows easy periodic re-flights of an area of interest. Flying heights above ground level (AGL) of e.g. 100 m to 300 m (national regulations apply!) deliver great detail and usually allow flight missions below clouds. This way one can operate far more often than manned aircraft for this purpose.

 

Environment

Agriculture and forestry

Agriculture and forestry frequently take advantage of aerial imagery in many of their applications. Available near-infrared imagery opens even more possibilities of data exploitation. The easy transportation capabilities of GerMAP's UAV systems allows their use also in remote areas. With flying heights above ground level which are below cloud coverage UAV-Mapping (Link zu: “UAV Services”) uses the weather in an optimal manner. Farmers, foresters, but also respective consultants, biomass energy plant operators, or insurance entities may efficiently make use of spatial information, e.g. to monitor health of crop, progress in re-forestation projects, planning in precision farming projects, biomass-monitoring, or localization and identification of damage claims.

UAV-Mapping delivers detail information for agricultural projects and ongoing work. Georeferenced, high resolution orthoimages help monitoring plantations and support precision farming processes. ColorInfraRed (CIR) orthomosaics may help to visualize and to localize specific status of crop health and growth. Orthomosaics are ideal backdrop information in agro-GIS and strongly support readability of related data bases.

The top shows a regular agricultural area. Below displays a plantation test site. The upper row of 4 images shows a series of RGB, NIR, CIR, DSM images in overview mode, and below one sees more detailed views of them. All orthoimages are of 10 cm GSD or higher ground sampling distance (GSD).

Forestry traditionally has a high demand for spatial information. The UAV-Mapping technology offers attractive solutions to forestry matters such as e.g. documentation of fallen trees, status of plantations, biomass determination, insect damage or forest fires to name a few.

One use of UAV-Mapping within forestry is monitoring and documenting seats of fire.

Agriculture and forestry

Biomass

Biomass is of increasing interest to the public and moreover to the companies generating energy from regenerative biomass. Volume determination on demand is more a need than a desire. UAV-Mapping can easily produce this highly local geospatial information, also during winter time and snow cover. UAV-Mapping delivers the available volume, and the user converts the volume by means of knowledge and experience into returns, e.g. X tons of wheat per cubic-meters.

 

Biomass

Golf courses

Golf course green keepers have an economic interest to know current details about their "green". For this purpose an orthomosaic of the whole green delivers geospatial information which serves for visualizations as well as for extraction of measures. Furthermore, one can integrate an orthomosaic easily into a local geoinformation system (GIS). UAV-Mapping generates this sort of infrastructural information. Moreover, orthomosaic and 3D digital surface model including all trees and other elevated permanent objects represent the basis for a not only realistic but true 3D computer simulation of the green and 3D-visualizations thereof.

 

Golf course

Historic sites

Historic sites of modern and ancient times are of public interest. Aerial images and elevated views support the presentation, the understanding, and the perception of these locations, which usually are of small extent. UAV-Mapping helps getting insight views and maps the location while establishing spatial references.

The Göltzschtal Bridge, Germany, supposedly is worldwide one of the largest train viaduct arc-bridges of its kind and considered to be a technical monument under UNESCO protection. The bridge spans 574 m in 78 m height across the Göltzsch river valley and is a 4-story Roman arc-bridge made of bricks. It was opened in 1851 as the first train connection between northern and southern Germany and is in daily use. The shown aerial view originates from a UAV-Mapping flight mission with oblique imaging capability.

 

Historic sites

Archaeology

Many archaeological sites benefit from precise spatial overall information as given in an orthomosaic. As such sites often are of smaller extent, the UAV-Mapping approach appears to be the ideal response for local documentation and provision of orthomosaics. Also, temporal, periodic documentation becomes affordable this way.

 

Archaeology