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ADDITIONAL MILITARY LAYERS - United Kingdom Hydrographic ...

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Additional Military Layers<br />

Environment, Seabed and Beach Product Specification<br />

Data Quality Information<br />

Relative Vertical Accuracy<br />

Quality of Position<br />

Quality of Sounding<br />

Measurement<br />

Technique of sounding<br />

measurement<br />

Conformance to the<br />

Product Specification<br />

External Reference<br />

Information<br />

Image File Link<br />

Text File Reference (in<br />

national language<br />

characters)<br />

Reference to a publication<br />

Other Supporting<br />

Information<br />

Supporting textual<br />

information (in national<br />

language characters)<br />

Description<br />

The vertical error estimate<br />

for the distance between<br />

two points, or the accuracy<br />

of one point with respect to<br />

another<br />

An indication of the<br />

reliability of a quoted<br />

position<br />

An indication of the<br />

reliability of a sounding<br />

Indicates the method or<br />

equipment used to obtain<br />

the object’s depth<br />

An indication of how well<br />

the data conforms to the<br />

product specification<br />

Description<br />

A reference to an image file<br />

containing a pictorial<br />

representation of the object<br />

The file name relating to an<br />

external text file<br />

Reference to a specific<br />

location of any relevant<br />

information within an<br />

external publication<br />

Description<br />

Supporting (free text)<br />

information relevant to the<br />

object that cannot be<br />

explicitly encoded by any<br />

other attribute<br />

Encoding Details<br />

generic attribute<br />

generic attribute<br />

(may be encoded on the spatial<br />

object)<br />

specific attribute<br />

specific attribute<br />

Feature Class<br />

Encoding Details<br />

generic attribute<br />

generic attribute<br />

generic attribute<br />

Encoding Details<br />

generic attribute<br />

5.5.2 Feature Classes<br />

The following table contains the information described below:<br />

· Feature Class – gives the name of the feature class<br />

· Description – describes the feature class<br />

· Associated Attributes – indicates allowable attributes relevant to each feature class.<br />

(see section 5.5.3 for attribute descriptions and values.)<br />

· M – denotes that export of the attribute field is mandatory<br />

Page 30<br />

Version 1.0

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