Table 6.44 — EEs for EAs whose label begins with I

Attribute label Enumerant label Concept definition Code
ICAO_AIRSPACE_CLASS   The class of an ICAO <AIRSPACE>.  
  A IFR flights only are permitted, all flights are subject to air traffic control service and are separated from each other; class A. 1
  B IFR and VFR flights are permitted and all flights are subject to air traffic control service and IFR flights are separated from each other; class B. 2
  C Class <<<B>>> where IFR flights are also separated from VFR flights by air traffic control service; class C. VFR receive traffic information about other VFR flights. 3
  D Class <<<B>>> where IFR flights also receive traffic information about VFR flights by air traffic control service; class D. VFR flights receive traffic information about all other flights. 4
  E IFR and VFR flights are permitted and IFR flights are subject to air traffic control service and are separated from other IFR flights; class E. All flights receive traffic information as far as is practical. 5
  F IFR and VFR flights are permitted and all participating IFR flights receive an air traffic advisory service and all flights receive flight information service if requested; class F. 6
  G IFR and VFR flights are permitted and receive flight information service if requested; class G. 7
ICING_TYPE   The type of any deposit or coating of <ICE> on an <OBJECT> caused by the impingement and freezing of liquid (usually supercooled) hydrometeors; the icing type.  
  CLEAR_ICE Smooth compact <RIME>, usually transparent, fairly amorphous, with a ragged <SURFACE>, and morphologically resembling <ICE_GLAZE>; clear ice. 1
  HARD_RIME Opaque, granular masses of <RIME> deposited chiefly on vertical <SURFACE>s by a dense supercooled <FOG>; hard rime. Hard rime is more compact and amorphous than <<<SOFT_RIME>>> and may build out into the <WIND> as glazed cones or feathers of <ICE>. 2
  HOAR_FROST <HOAR_FROST>. 3
  ICE_GLAZE <ICE_GLAZE>. 4
  RIME <RIME>. 5
  SOFT_RIME A white, opaque coating of fine <RIME> deposited chiefly on vertical <SURFACE>s, especially on points and edges of <OBJECT>s, generally in supercooled <FOG>; soft rime. 6
INLAND_HYDROGRAPHIC_PERMANENCE   The permanence of an inland hydrographic <OBJECT>.  
  EPHEMERAL Ephemeral. 1
  INTERMITTENT Intermittent. 2
  PERENNIAL Perennial. 3
INSTALLATION_BUOY_TYPE   The type of an installation <BUOY>.  
  CATENARY_ANCHOR Incorporates a large <BUOY> that remains on the <SURFACE> at all times and is moored by 4 or more anchors; a catenary anchor leg mooring. Mooring hawsers and cargo hoses lead from a turntable on top of the <BUOY> so that the <BUOY> does not turn as the <VESSEL> swings to wind and stream. 1
  SINGLE A mooring <STRUCTURE> used by tanker <VESSEL>s to load and unload in port approaches or in offshore oil and gas fields; a single point mooring. The size of the <STRUCTURE> can vary between a large mooring <BUOY> and a manned floating <STRUCTURE>. 2
INTEREST_TYPE   The reason an <OBJECT> is of interest.  
  FAMOUS_RESIDENCE A famous place of residence. 1
  HISTORIC_BATTLEFIELD An historic battlefield. 2
  HISTORIC_MONUMENT An historic monument. 3
INTERIOR_WALL_CONSTRUCTION-
_TYPE 		  The type of <MATERIAL> and/or techniques used to construct an <INTERIOR_WALL>.  
  CONCRETE Concrete. 1
  GYPSUM_ON_METAL Gypsum wallboard secured to metal studs. 2
  GYPSUM_ON_WOOD Gypsum wallboard secured to wood studs. 3
  HOLLOW_CONCRETE_BLOCK Hollow concrete blocks cemented with mortar. 4
  HOLLOW_FIRED_CLAY_BLOCK Hollow fired clay blocks cemented with mortar. 5
  LATH_PLASTER Lath and plaster on wood studs. 6
  MASONRY Masonry. 7
  REINFORCED_CONCRETE Reinforced <<<CONCRETE>>>. 8
IRRIGATION_METHOD   The method used to supply crops with <WATER>; the irrigation method.  
  DITCH Utilizes a <SYSTEM> of <IRRIGATION_DITCH>s for the distribution of <WATER> for agricultural use. 1
  SPRINKLER Utilizes an aerial mist or spray rather than applying <WATER> directly on the <SURFACE> of the <SOIL>; sprinkler. 2
ISLAMIC_DENOMINATIONAL_FAMILY   The designation of a <NON_EMPTY_SET> of closely related Islamic religious denominations, often ones which were at one time part of a single movement but are now separate religious denominations; the Islamic denominational family.  
  AHMADIYA Messianic movement derived from Shia Islam, following 1889 founder Ghulam Ahmad; Ahmadiya. 1
  ALAWITE Followers of Alawiya, a sect of Shia Islam in Latakia province Syria, Lebanon, and Celicia, Turkey; Alawite. 2
  BADAWIYA A major order of Sufi Islam in Egypt; Badawiya. 3
  HANAFITE Followers of Hanafiya, the most liberal of the four schools of Sunni Islamic law, and by far the most widespread; Hanafite. 4
  HANBALITE Followers of Hanabila, the most rigid of the four schools of Sunni Islamic law; mainly in Central Arabia; Hanabalite. 5
  ISMAILI Followers of Ishaliya, the second largest sect of Shia Islam; Ismaili or Seveners. 6
  ITHNA_ASHARI Followers of Ithna-Ashariya, the largest sect of Shia Islam; Ashari, Ithna-Ashari or Twelvers. 7
  MADARIYA A major order of Sufi Islam in Northern India and Nepal; Madariya. 8
  MALAKITE Followers of Malikiya, one of the four schools of Sunni Islamic law; Malakite. 9
  NATION_OF_ISLAM Followers of Elijah Mohammed; a sect of Islam found in the West; Nation of Islam, Black Muslims. 10
  QADIRIYA The oldest order of Sufi Islam, widespread in over 50 countries from Senegal to Malaysia; Qadiriya. 11
  SHAFFITE Followers of Shafiiya, one of the four schools of Sunni Islamic law; Shaffite. 12
  SHIA Shia. 13
  SUFI Members of one of approximately 70 orders of Sunni Islam believing in mysticism and asceticism; Sufi. 14
  SUNNI Sunni. 15
  WAHABI Wahabi. 16
  ZAYDI A sect of Islam in Yemen that constitutes of one of the four major sects of Shia Islam; Zaydi or Fivers. 17

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