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Pursuant to the provision of article 37 of the Convention on International Civil Aviation Chicago , each contracting state is committed to provide Aeronautical Information Service. The aeronautical data, so published, is immensely utilized by Aviation Services Providers as the aeronautical data has grown sensitive and earned more significant importance with technological developments with regard to sophisticated computer based air navigation systems, such as Flight Management System FMS.

I am sure that all the users of this manual including AAI personnel engaged in the provision of Aeronautical Information Services will be benefited. The provision of aeronautical information is essential for the safety, regularity and efficiency of air navigation. This manual shall not be reproduced or copied in part or full in anyway by any other organization except AAI.

Aeronautical Information Services Manual. Aeronautical Information Service providers. Location Indicators. This manual may be amended as and when considered appropriate. The need to amend this manual may arise because of the following reasons, some of the parameters on account of which amendment may be considered are listed below : 1 2 3 4 Amendments to the applicable ICAO Annex and documents.

Introduction of new technologies in the provision of AIS. Requirements from ATS, Airlines or any other concerned aviation agency. A degree of conformance between the estimated or measured value and the true value.

For measured positional data the accuracy is normally expressed in terms of a distance from a stated position within which there is a defined confidence of the true position falling. Aeronautical data. A representation of aeronautical facts, concepts or instructions in a formalized manner suitable for communication, interpretation or processing. Aeronautical information. Information resulting from the assembly, analysis and formatting of aeronautical data.

A notice containing information that does not qualify for the origination of a NOTAM or for inclusion in the AIP, but which relates to flight safety, air navigation, technical, administrative or legislative matters. A publication issued by or with the authority of a State and containing aeronautical information of a lasting character essential to air navigation.

AIP Amendment. Permanent changes to the information contained in the AIP. AIP Supplement. Temporary changes to the information contained in the AIP which are published by means of special pages.

An acronym aeronautical information regulation and control signifying a system aimed at advance notification based on common effective dates, of circumstances that necessitate significant changes in operating practices.

Air defence identification zone ADIZ. AIS product. A process of merging data from multiple sources into a database and establishing a baseline for subsequent processing. The assemble phase includes checking the data and ensuring that detected errors and omissions are rectified.

Bare Earth. Surface of the Earth including bodies of water and permanent ice and snow, and excluding vegetation and man-made objects. Bare Earth vegetation height. Data quality.

A degree or level of confidence that the data provided meets the requirements of the data user in terms of accuracy, resolution and integrity.

Data set. Data set series. The representation of terrain surface by continuous elevation values at all intersections of a defined grid, referenced to common datum. Direct transit arrangements. Special arrangements approved by the public authorities concerned by which traffic which is pausing briefly in its passage through the Contracting State may remain under their direct control.

Ellipsoid height Geodetic height. The height related to the reference ellipsoid, measured along the ellipsoidal outer normal through the point in question. Feature attribute. A feature attribute has a name, a data type and a value domain associated with it.

Feature operation. All man-made features constructed on the surface of the Earth, such as cities, railways and canals. Cyclic redundancy check CRC. A mathematical algorithm applied to the digital expression of data that provides a level of assurance against loss or alteration of data.

Danger area. An airspace of defined dimensions within which activities dangerous to the flight of aircraft may exist at specified times.

One or more files of data so structured that appropriate applications may draw from the files and update them. This primarily refers to data stores electronically and accessed by computer rather than in files of physical records. Data product. Data product specification. A data product specification provides a description of the universe of discourse and a specification for mapping the universe of discourse to a data set.

It may be used for production, sales, end-use or other purpose. An operation upon the feature type dam is to raise the dam. The result of this operation is to raise the level of water in the reservoir.

The vertical distance of a level, point or an object considered as point, measured from a specific datum. An aerodrome or a defined area on a structure intended to be used wholly or in part for the arrival, departure and surface movement of helicopter.

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. Feature relationship. Feature type. In a feature catalogue, the basic level of classification is the feature type.

Geodesic distance. The shortest distance between any two points on a mathematically defined ellipsoidal surface. Geodetic datum. The equipotential surface in the gravity field of the Earth which coincides with the undisturbed mean sea level MSL extended continuously through the continents.

The geoid is irregular in shape because of local gravitational disturbances wind tides, salinity, current, etc. Geoid undulation.

The distance of the geoid above positive or below negative the mathematical reference ellipsoid. Gregorian calendar.

In the Gregorian calendar, common years have days and leap year days divided into twelve sequential months. 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.

Manoeuvring area. That part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, excluding aprons. Data 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.

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. 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.

Orthometric height. Height of a point related to the geoid, generally presented as an MSL elevation. 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. The smallest difference that can be reliably distinguished by a measurement process. 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-flight information bulletin PIB.

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 assurance. Quality Control. Quality management.


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