ADDITIONAL MILITARY LAYERS - United Kingdom Hydrographic ...

Additional Military Layers
Environment, Seabed and Beach Product Specification
Feature Class
Description
Associated Attributes
Form
Description
M
P
L
A
Ice Polynya
An Ice Polynya is any
opening enclosed by
ice. It is generally non
linear and generally
larger than an Ice Lead
or Ice Fracture. A
polynya may contain
brash ice and be
covered with new ice,
nilas or young ice.
- Ice Polynya Type
- Ice Polynya Status
- Name
- Name (in national
language characters)
p
(ECDIS Ice Objects
Version 3.0)
Land Elevation
An elevation is the
vertical distance of a
point or a level, on, or
affixed to, the surface
of the earth, measured
from a specified
vertical datum.
(IHO Dictionary, S -32,
5 th Edition, 1590)
- Conspicuous,
visually
- Elevation
- Height/Length Units
- Name
- Name (in national
language characters)
- Vertical Datum
p
p
Land Ice
A Land Ice area is ice
of land origin such as
glacier ice, ice shelf or
ice tongue.
(ECDIS Ice Objects
Version 3.0)
- Land Ice
- Name
- Name (in national
language characters)
p
Land Region
An area of natural
scenery on land. It is
defined by its
geographical
characteristics and may
be known by its proper
name.
(S -57 Annex A,
Appendix A, IHO
Object Catalogue)
- Classification of land
region
- Gradient
- Name
- Name (in national
language characters)
- Nature of Geological
Layer
- Nature of Geological
Layer - Qualifying
terms
p
p
- Water level effect
Landing Area
The general area used
for landing troops and
stores either by aerial
delivery or air landing.
This area includes one
or more landing/drop
zones or landing strips.
- Approach
- Exit Description
- Landing Conditions
- Name
- Name (in national
language characters)
p
(AML)
- Status
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