Sea Bed Area - Spatial object type

Definition: An area of the sea bed with some identified type of cover. e.g. an area of vegetation or sediment type.

Description: This describes a sea region according to the characteristics of the sea bed rather than characteristics of the water column in general. It does not include the subsea geology and is analogous to the concept of LandCover (INSPIRE Annex III).

INSPIRE Data Theme: Sea Regions - [INSPIRE Data Theme Sea Regions]

INSPIRE Application schema: Sea Regions - [INSPIRE Application schema Sea Regions]

Subtype of: Marine Layer


Attributes:

surface Type

Definition: Surface type of sea bed.

Description: Surface type of sea bed.

Multiplicity: 1...*

Valuetype: SeaBedCoverValue

geometry - MarineLayer

Definition: Geometry of the marine layer.

Multiplicity: 0...1

Valuetype: GM_Object

valid Time - MarineLayer

Definition: Time period for which the marine layer is valid.

Multiplicity: 1

Valuetype: TM_Period


Associated objects - Optional:

Marine Layer - ( Name of the association: sub Layer ) - from Marine Layer

Definition: A Marine Layer describes any layer that may cover any part of a sea surface or sea bottom.

Description: Examples of surface layers identified in the reference material include oil, algal blooms and ice. Examples of seabed layer identified in the reference material include sediment type and presence or absence of vegetation.As these phenomena have a dynamic characteristic, the extent they describe (GM_Surface) has a validity period. A marineLayer may not be associated with a particular SeaArea. A SeaArea may have multiple MarineLayers and MarineLayers can overlap each other.

Multiplicity: 0..*

Name of the association: sub Layer

Association definition: A marine layer may have a sub-layer, for example an Oil Slick may have a main slick with several smaller sub-slicks.

INSPIRE Data Theme: Sea Regions - [INSPIRE Data Theme Sea Regions]

INSPIRE Application schema: Sea Regions - [INSPIRE Application schema Sea Regions]

Supertype of: SeaBedArea SeaSurfaceArea


Attributes

geometry

Definition: Geometry of the marine layer.

Multiplicity: 0...1

Valuetype: GM_Object

valid Time

Definition: Time period for which the marine layer is valid.

Multiplicity: 1

Valuetype: TM_Period


Constraints

geometry should be a GM_Point or GM_Surface

Type OCL

Status Approved

Note /* A Marine Layer can be represented as either a surface or a point. The point type geometry reflects the reality that many Marine Layers are identified by point observations. */inv:self.geometry.oclIsKindOf(GM_Point) OR self.geometry.oclIsKindOf(GM_Surface)


Associated objects - Optional:

Marine Layer - ( Name of the association: sub Layer )

Definition: A Marine Layer describes any layer that may cover any part of a sea surface or sea bottom.

Description: Examples of surface layers identified in the reference material include oil, algal blooms and ice. Examples of seabed layer identified in the reference material include sediment type and presence or absence of vegetation.As these phenomena have a dynamic characteristic, the extent they describe (GM_Surface) has a validity period. A marineLayer may not be associated with a particular SeaArea. A SeaArea may have multiple MarineLayers and MarineLayers can overlap each other.

Multiplicity: 0..*

Name of the association: sub Layer

Association definition: A marine layer may have a sub-layer, for example an Oil Slick may have a main slick with several smaller sub-slicks.

INSPIRE Data Theme: Sea Regions - [INSPIRE Data Theme Sea Regions]

INSPIRE Application schema: Sea Regions - [INSPIRE Application schema Sea Regions]

Supertype of: SeaBedArea SeaSurfaceArea


Attributes

geometry

Definition: Geometry of the marine layer.

Multiplicity: 0...1

Valuetype: GM_Object

valid Time

Definition: Time period for which the marine layer is valid.

Multiplicity: 1

Valuetype: TM_Period



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