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  2. Special flight rules area - Wikipedia

    en.wikipedia.org/wiki/Special_Flight_Rules_Area

    Following the terrorist attacks of September 11, 2001, the airspace around Washington DC underwent a number of changes designed to restrict flying around the city. In 2003, a temporary flight rules area was created and was named the Washington DC Air Defense Identification Zone.

  3. Air Defense Identification Zone (North America) - Wikipedia

    en.wikipedia.org/wiki/Air_Defense_Identification...

    ADIZ boundaries for the United States and Canada as of 2018. ADIZ boundaries for Alaska. The Air Defense Identification Zone of North America is an air defense identification zone (ADIZ) that covers the airspace surrounding the United States and Canada – in which the ready identification, location, and control of civil aircraft over land or water is required in the interest of national ...

  4. Washington, D.C., Special Flight Rules Area - Wikipedia

    en.wikipedia.org/wiki/Washington,_D.C.,_Special...

    An air defense identification zone (ADIZ) has existed since February 10, 2003, [1] around the Baltimore-Washington Metropolitan Area to restrict air traffic near Washington, D.C. The ADIZ was established as a precursor to the US invasion of Iraq in 2003. [2]

  5. Air defense identification zone - Wikipedia

    en.wikipedia.org/.../Air_defense_identification_zone

    An air defense identification zone (ADIZ) is a region of airspace in which a country tries to identify, locate, and control aircraft in the interest of national security. [1] It is declared unilaterally [ 2 ] and may extend beyond a country's territory to give the country more time to respond to possibly hostile aircraft. [ 3 ]

  6. Prohibited airspace - Wikipedia

    en.wikipedia.org/wiki/Prohibited_airspace

    A prohibited airspace is an area (volume) of airspace within which flight of aircraft is not allowed, usually due to security concerns. It is one of many types of special use airspace designations and is depicted on aeronautical charts with the letter "P" followed by a serial number.

  7. DJI - Wikipedia

    en.wikipedia.org/wiki/DJI

    DJI later set up a no-fly Geo-system according to prohibited airspace, and forced all drones to update the firmware. The system introduced prevents flights from getting closer to, or to take off from restricted zones, based on GPS location. [116]

  8. Global Area Reference System - Wikipedia

    en.wikipedia.org/wiki/Global_Area_Reference_System

    Geographic point coord. 1983: NAD 83: North American Datum 1983: WGS 84: World Geodetic System 1984: NAVD 88: N. American Vertical Datum 1988: ETRS89: European Terrestrial Ref. Sys. 1989: GCJ-02: Chinese obfuscated datum 2002: Geo URI: Internet link to a point 2010

  9. List of national coordinate reference systems - Wikipedia

    en.wikipedia.org/wiki/List_of_national...

    The list of national coordinate reference systems (CRS) lists map projections officially recommended for existing countries. Given that every projection gives deformations, each country's needs are different in order to reduce these distortions.