
Information technology
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Computer graphics and image processing --
Environmental Data Coding Specification

This International Standard establishes concepts to ensure that
environmental information is:
- unambiguously defined,
- flexibly denoted and encoded, and
- easily bound in exchange formats and to programming languages.
This International Standard specifies:
- classifications that define the type of environmental objects,
- attributes that define the state of environmental objects, and
- enumerants and units of measure that define how values of state are
characterized.
This International Standard specifies labels and codes because denoting and
encoding a concept requires a standard way of identifying the concept.
This International Standard is applicable, but is not limited to:
- abstract concepts (for example: absolute latitude accuracy, geodetic azimuth),
- airborne particulates and aerosols (for example: cloud, dust, fog, snow),
- animals (for example: civilian, fish, human, whale pod),
- atmosphere and atmospheric conditions (for example: air temperature,
humidity, rain rate, sensible and latent heat, wind speed and direction),
- bathymetric physiography (for example: bar, channel, continental shelf, guyot, reef,
seamount, water body floor region),
- electromagnetic and acoustic phenomena (for example: acoustic noise, frequency, polarization,
sound speed profile, surface reflectivity),
- equipment (for example: aircraft, spacecraft, tent, train, vessel),
- extraterrestrial phenomena (for example: asteroid, comet, planet),
- hydrology (for example: lake, rapids, river, swamp),
- ice (for example: iceberg, ice field, ice peak, ice shelf, glacier),
- man-made structures and their interiors (for example: bridge, building, hallway, road, room,
tower),
- ocean and littoral surface phenomena (for example: beach profile, current, surf, tide, wave),
- ocean floor (for example: coral, rock, sand),
- oceanographic conditions (for example: luminescence, salinity, specific gravity,
turbidity, water current
speed),
- physiography (for example: cliff, gorge, island, mountain, reef, strait, valley
region),
- space (for example: charged particle species, ionospheric scintillation, magnetic field, particle
density, solar flares),
- surface materials (for example: concrete, metal, paint, soil), and
- vegetation (for example: crop land, forest, grass land, kelp bed, tree).
Figure 1.1 illustrates some of these concepts.

Figure 1.1 -- Example
environmental concepts

http://www.iso.ch/iso/en/ittf/PubliclyAvailableStandards/ISO_IEC_18025_Ed1.html