ais land cover map of denmark examples of its application 1. for the ais land use map of denmark
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AIS Land Cover Map of Denmark Examples of its application 1. for the AIS Land Use map of Denmark 2. for habitat / vegetation type application. Systematic land use inventory is seen as essential in order:. to produce proper land use statistics to follow changes and developments in - PowerPoint PPT PresentationTRANSCRIPT
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AIS Land Cover Map of Denmark
Examples of its application
1. for the AIS Land Use map of Denmark
2. for habitat / vegetation type application
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• to produce proper land use statistics
• to follow changes and developments inland use over appropriate time periods
• to monitor the effects of imposed land use policies
• to police land use policies and regulations
• to perform scenario analyses
• to perform integrated analyses
Systematic land use inventory is seen as essential in order:
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1. for the AIS Land Use map of Denmark
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Background
• GIS layers in Denmark were (1994) sparse and inconsistent– old– held by different organisations– lacking good land cover information
• Land Use & Environmental Mapping in Denmark,mid-1990s :
- an abundance of mappings produced and used by the various organisations
- no common map base or data structure
- a major impediment to inter-disciplinary monitoring and modelling
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Objectives
• a unitary polygon based land use map
• selected supplementary databases– based on existing topographic mappings
– nation-wide, scale 1:25.000
– for both research and administrative application
– supplemented by other relevant data
... including a satellite image derived Land Cover Classification
• as a Collaboration across the research institutes and policy agencies of the Ministry of Environment & Energy and related Governmental departments
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Participants• National Environmental Research Institute
– Dept. Lake and Estuarine Ecology– Dept. Landscape Ecology– Dept. Policy Analysis– Dept Marine Ecology
• Geological Survey of Denmark and Greenland• Danish Forest and Landscape Research Institute• National Forest and Nature Agency• Danish Energy Agency• Danish Environmental Protection Agency• Spatial Planning Dept.* Kort & Matrikelstyrelsen* Danish Institute of Agricultural Sciences* The Danish Counties* Royal Danish Administration of Navigation and Hydrography
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Overview of databases
Basemaps:• Land use map• Coast lines• Streams* Satelite data archieve• Satelite classification
Hydrological data• Lakes• Stream sections• Catchments• Gauging stations• Wetlands
Vegetation data• Protected nature types• Forests• Terestrial nature types
Urban areas• Land use
Geology* Surface Geology 1:25.000* Surface Geology 1:200.000
Administrative zones• Planning regions:
• Urban areas• Village boundaries• Rural planning• Summer houses• Wind energy
• Drinking water interest• Waste deposits• Mineral extraction sites
• Leisure centres/hotels• Camping/Youth hostels
• EU-bird protection site• Ramsar-sites• EU-habitat site• Wildlife sanctuaries
• Cultural protections
Marine areas* Bottom sediments• Depth model
* Restrictions in distribution
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Example - Land use map
• Based on data fusion from:– Topographical data in scanned and digital form– Map(s) of protected nature types – Digital map of arable fields– Classification of satellite data
• Sequential integration of the different layers, applying layer dependent rules for handling cartographic and thematic issues
• CORINE LC based coding and nomenclature as far as possible (4 digits)
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Topographic map
Agricultural fields
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Land cover
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Final map
Generalisation
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Protected nature types
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Example from Land use map
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The AIS Area Reference Frame data product
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§3 arealer i Viborg Amt§3 arealer i Viborg Amt
2. for habitat / vegetation type application
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Arealdækkekort - AIS, Viborg AmtArealdækkekort - AIS, Viborg Amt
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3220 - Hede, Viborg Amt3220 - Hede, Viborg Amt
Hede arealerne i Viborg amt finder man ved kysten i den norvestlige del af amtet, samt på arealer inde i landet.
Hedearealerne er på billedet markeret med lilla/violetHjelm & Hjerl Hede
Hessellund Hede
Kongenshus Hede
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Lodbjerg KlithedeLodbjerg Klithede
Foto: Ditte Nan Hansen, DMU
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Hjelm HedeHjelm Hede
Foto: Ditte Nan Hansen, DMU
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Kongenshus HedeKongenshus Hede
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Areal fordeling: Viborg amt §3, 3220 polygonerAreal fordeling: Viborg amt §3, 3220 polygoner
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1 Km2 net etableres
Etablering af Analyse netEtablering af Analyse net
Net afgrænses med amtsgrænse
Net kombineres med §3 Hede
polygoner (Polygoner >
10.000m2)Analysenet
hele amt analyse --> spatial analysis of patterns within Viborg amt
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Arealfordeling i net cellerArealfordeling i net celler
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Arealfordeling i net cellerArealfordeling i net celler
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For a large area of heath in the SW of Viborg county, the Paragraph-3 heath areas can be sub-divided into a set of 1x1 km areas (left)
e.g. … for targeting protected nature area field survey work
The AIS LCM data (centre) for the P-3 areas within each grid cell can then be interrogated for a particular land cover composition pattern
Such as, (right, shown in yellow) those P-3 heath areas with a certain mixture of grass and shrub heathland, bare areas and woodland
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