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(MSL) extended continuously through the continents.
Note.- The geoid is irregular in shape because of local
gravitational disturbances (wind tides, salinity, current,
etc.) and the direction of gravity is perpendicular to the
geoid at evev point.
Geoid undulation. The distance of the geoid above (positive)
or below (negative) the mathematical reference ellipsoid.
Note.- In respect to the World Geodetic System - 1984
(WGS-84) dejhed ellipsoid, the difference between the
WGS-84 ellipsoidal height and orthometric height represents
WGS-84 geoid undulation.
Gregorian calendar. Calendar in general use; first introduced
in 1582 to define a year that more closely approximates the
tropical year than the Julian calendar (IS0 19108*).
Note.- In the Gregorian calendar, common years have
365 days and leap years 366 days divided into twelve
sequential months.
Height. The vertical distance of a level, point or an object
considered as a point, measured from a specific datum.
Helipott An aerodrome or a defined area on a structure
intended to be used wholly or in part for the anival, departure
and surface movement of helicopters.
Human Factors principles. Principles which apply to
aeronautical design, certification, training, operations and
maintenance and which seek safe interface between the
human and other system components by proper consideration
to human performance.
Integrated Aeronautical Information Package. A package
which consists of the following elements:
- AIP, including amendment service;
- Supplements to the AIP;
- NOTAM and PIB;
- AIC; and
- checklists and lists of valid NOTAM.
Chapter 2 Annex 15 - Aeronautical Information Services
Integrity (aeronautical data). A degree of assurance that an
aeronautical data and its value has not been lost or altered
since the data origination or authorized amendment.
International airport. Any airport designated by the
Contracting State in whose territory it is situated as an
airport of entry and departure for international air traffic,
where the formalities incident to customs, immigration,
public health, animal and plant quarantine and similar
procedures are carried out.
International NOTAM ofice (NOF). An office designated by
a State for the exchange of NOTAM internationally.
Manoeuvring area. That part of an aerodrome to be used for
the take-off, landing and taxiing of aircraft, excluding
aprons.
Metadata. Data about data (IS0 191 1 S*).
Note.- Data that describes and documents data.
Movement area. That part of an aerodrome to be used for the
take-off, landing and taxiing of aircraft, consisting of the
manoeuvring area and the apron(s).
NOTAM. A notice distributed by means of telecommunication
containing information concerning the establishment, condition
or change in any aeronautical facility, service,
procedure or hazard, the timely knowledge of which is
essential to personnel concerned with flight operations.
Obstacle. All fixed (whether temporary or permanent) and
mobile objects, or parts thereof, that are located on an area
intended for the surface movement of aircraft or that extend
above a defined surface intended to protect aircraft in flight.
Obstacle/errain data collection surface. A defined surface
intended for the purpose of collecting obstacleJterrain data.
Orthometric height. Height of a point related to the geoid,
generally presented as an MSL elevation.
Portrayal. Presentation of information to humans (IS0 191 17*).
Position (geographical). Set of coordinates (latitude and
longitude) referenced to the mathematical reference ellipsoid
which define the position of a point on the surface of
the Earth. .
Post spacing. Angular or linear distance between two adjacent
elevation points.
Precision. The smallest difference that can be reliably
distinguished by a measurement process.
Note.-- In reference to geodetic surveys, precision is a
degree of refinement in performance of an operation or a
degree of perfection in the instruments and methods used
when taking measurements.
Pre-fight information bulletin (PIB). A presentation of current
NOTAM information of operational significance, prepared
prior to flight.
Prohibited area. An airspace of defined dimensions, above the
land areas or territorial waters of a State, within which the
flight of aircraft is prohibited.
Quality. Totality of characteristics of an entity that bear on its
ability to satisfy stated and implied needs (IS0 8402*).
Note.- Entity is an item which can be individually
described and considered ('SO 8402*).
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附件15--航行情报服务 Aeronautical Information Services(10)
