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To better classify and manage your layers, the following categories must be chosen for each layer:



Flora and/or fauna in natural environment

Examples: Wildlife, vegetation, biological sciences, ecology, wilderness, sealife, wetlands, habitat


Legal land descriptions, maritime boundaries.

Examples: Political and administrative boundaries, territorial seas, EEZ, port security zones

Climatology Meteorology Atmosphere

Processes and phenomena of the atmosphere.

Examples: Cloud cover, weather, climate, atmospheric conditions, climate change, precipitation


Information related to disasters.

Examples: Site of the disaster, evacuation zone, disaster-prevention facility, disaster relief activities


Economic activities, conditions and employment.

Examples: Production, labour, revenue, commerce, industry, tourism and ecotourism, forestry, fisheries, commercial or subsistence hunting, exploration and exploitation of resources such as minerals, oil and gas


Height above or below a vertical datum.

Examples: Altitude, bathymetry, digital elevation models, slope, derived products


Environmental resources, protection and conservation. Examples: Environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape

Extra Terrestrial              

Region more than 100 km above the surface of the Earth


High-level geographic data thematic classification to assist in the grouping and search of available geographic data sets.

Examples: Agriculture, irrigation, aquaculture, plantations, herding, pests and diseases affecting crops and livestock

Geoscientific Information           

Information pertaining to earth sciences.

Examples: Geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth’s rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, erosion


Health, health services, human ecology, and safety.

Examples: Disease and illness, factors affecting health, hygiene, substance abuse, mental and physical health, health services

Imagery Base Maps Earth Cover              

Base maps. Examples:

Land cover, topographic maps, imagery, unclassified images, annotations

Inland Waters  

Inland water features, drainage systems and their characteristics.

Examples: Rivers and glaciers, salt lakes, water utilization plans, dams, currents, floods, water quality, hydrologic information

Intelligence Military       

Military bases, structures, activities.

Examples: Barracks, training grounds, military transportation, information collection


Positional information and services.

Examples: Addresses, geodetic networks, control points, postal zones and services, place names


Features and characteristics of salt water bodies (excluding inland waters).

Examples: Tides, tsunamis, coastal information, reefs

Planning & Cadastre          

Information used for appropriate actions for future use of the land.

Examples: Land use maps, zoning maps, cadastral surveys, land ownership


Characteristics of society and cultures.

Examples: Settlements, anthropology, archaeology, education, traditional beliefs, manners and customs, demographic data, recreational areas and activities, social impact assessments, crime and justice, census information


Man-made construction.

Examples: Buildings, museums, churches, factories, housing, monuments, shops, towers


Means and aids for conveying persons and/or goods.

Examples: Roads, airports/airstrips, shipping routes, tunnels, nautical charts, vehicle or vessel location, aeronautical charts, railways

Utilities & Communication              

Energy, water and waste systems and communications infrastructure and services.

Examples: Hydroelectricity, geothermal, solar and nuclear sources of energy, water purification and distribution, sewage collection and disposal, electricity and gas distribution, data communication, telecommunication, radio, communication networks

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