Unternehmen

DHI GRAS

We use Earth Observation satellite images to analyse, map, monitor and forecast Earths natural resources to help our clients understand the changes and developments that are taking place.

Über

We are a Danish company specialised in satellite image and data processing for hydrology, water quality, environmental assessment and land cover mapping. We handle the entire data flow from the reception and processing of satellite images to the delivery of the requested final information product.

Agriculture; Forests; Inland Water; Snow & Ice; Land Ecosystems; Land use

Zertifizierung
  • DHI GRAS works in accordance with the management system standards ISO 9001, ISO 14001 and OHSAS 18001
Registrationsnummer
CVR: 25621646
Adresse
Agern Alle 5, 2970 Hørsholm 2970 Copenhagen
Telefon
+45 4516 9100
Fax
+45 4516 9100
Kontaktname
Louise Kjær-Hansen
Kontaktposition
Kontakt Telefon
+45 4516 9100
Kontakt E-mail
lokh@dhigroup.com
Wertschöpfungskette
HQ-Standort
Agern Alle 5, 2970 Hørsholm, Denmark

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5D Multi-Purpose LIS (Land information System)
Agriculture, Infrastructure, Coastal, Floods, Forests, Inland Water, Land Ecosystems, Land use, Landslides, Sea-ice and icebergs, Snow & Ice, Topography, Urban Areas, Security, Assess Environmental impact of farming, Monitor crops, Assess Deforestation / Forest Degradation, Assess environmental impact of forestry, Assess and monitor water bodies   , Monitor land ecosystems and biodiversity, Monitor land cover and detect change , Baseline mapping , Map line of sight visibility (land surface), Asset infrastructure monitoring, Monitor coastal ecosystem, Monitor the coast line, Map and assess flooding, Detect and monitor wildfires, Forecast and assess landslides, Monitor sensitive risk areas, Forecasting epidemics and diseases, land administration, land use studies, monitoring of settlements, urban atlas, urban development, smart cities, rural areas, building inventory, building footprint, spatial planning, land cover, Solar energy, Construction, Forestry, Real-estate management, Transportation
The complexity of modern urban environments has led to the introduction of 3D Land Information Systems (LISs), which tend to replace traditional 2D LIS architectures for the purposes of urban planning and regeneration, land administration, real estate management and civil development. Both the need for 3D visualization of the geometry of buildings in various time instances through the years and the need for acquisition of 3D models in various levels of detail (LoDs), which not only fulfill the requirements of the various users but also they speed up the visualization process, are obvious. Thus, additional dimensions, that is, for time and scale, need to be supported by a modern LIS. This service introduces a 5D modelling pipeline that may be adopted by a multi-purpose LIS for the selective creation of 3D models of an urban area in various time instances and at various LoDs, enriched with cadastral and other spatial data. The methodology is based on automatic change detection algorithms for spatial-temporal analysis of the spatial changes that took place in subsequent time periods, using image orientation, dense image matching and structure from motion algorithms, the procedure requires photogrammetric stereo plotting, implements procedural modelling and relies on the availability of overlapping aerial and terrestrial imagery, ground control points and cadastral information.
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Land Cover Analysis
Floods, Inland Water, Land Ecosystems, Geology, Forests, Infrastructure, Land use, Urban Areas, Fires, Earthquakes, Construction, Emergency Services, Environmental, Pollution & Climate, Farming, Utilities (water, electricity, waste) , Oil and Gas, Minerals and Mining
LCA stands for Land Cover Analysis and is used to provide an up to date, digital overview of what covers the surface of our earth split out into 10 key land cover classes. The LCA is often the first step in many environmental monitoring or site selection processes.
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WindSight
Mapping the requirements and the willingness to pay for data at different stages of land based wind farm planning. Establish co-creation cycles with end users from the wind energy industry. Develop a sustainable business case for the provisioning of EO data and derived products over land to the wind energy industry.
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Satellite-derived Bathymetry
Coastal, Fisheries, Map water depth or charting, Oil and Gas, Maritime
A cost-effective method for accurate water depth mapping of the worlds shallow coastal areas based on high resolution satellite images. The method is globally applicable.
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