negative altitude

An angular distance below the horizon.

Aviation dictionary. 2014.

Look at other dictionaries:

  • altitude — i. The vertical distance of a level, a point, or an object considered as a point, measured from mean sea level (ICAO). In the case of aircraft in flight, it is normally expressed in flight levels or hundreds of feet. For example, an aircraft… …   Aviation dictionary

  • Altitude — L altitude est l élévation verticale d un lieu ou d un objet par rapport à un niveau de base. C est une des composantes géographique et biogéographique qui explique la répartition de la vie sur terre. L altitude est aussi une grandeur qui exprime …   Wikipédia en Français

  • Parallel of altitude — Parallel Par al*lel, n. 1. A line which, throughout its whole extent, is equidistant from another line; a parallel line, a parallel plane, etc. [1913 Webster] Who made the spider parallels design, Sure as De Moivre, without rule or line ? Pope.… …   The Collaborative International Dictionary of English

  • Extreme points of India — include the coordinates that are further north, south, east or west than any other location in India; and the highest and the lowest altitudes in the country. Also included in this list is the southern most Indian station in Antarctica. India s… …   Wikipedia

  • Horizontal coordinate system — The horizontal coordinate system is a celestial coordinate system that uses the observer s local horizon as the fundamental plane. This conveniently divides the sky into the upper hemisphere that you can see, and the lower hemisphere that you… …   Wikipedia

  • Flight planning — A Tarom Boeing 737 300 and United Airlines Boeing 777 200 taxiing to depart London Heathrow Airport. Flight planning is the process of producing a flight plan to describe a proposed aircraft flight. It involves two …   Wikipedia

  • depression — /di presh euhn/, n. 1. the act of depressing. 2. the state of being depressed. 3. a depressed or sunken place or part; an area lower than the surrounding surface. 4. sadness; gloom; dejection. 5. Psychiatry. a condition of general emotional… …   Universalium

  • depression — i. The angular distance of a body below the horizon. The term generally refers to a radar beam. ii. A region of relatively low barometric pressure. The term depression is usually applied to a certain stage in the development of a tropical cyclone …   Aviation dictionary

  • Atmospheric electricity — is the regular diurnal variations of the Earth s atmospheric electromagnetic network (or, more broadly, any planet s electrical system in its layer of gases). The Earth’s surface, the ionosphere, and the atmosphere is known as the global… …   Wikipedia

  • ABSOLU — Le sens de ce terme paraît, d’entrée de jeu, nécessairement équivoque et polémique. L’absolu est le corrélat et le contraire du relatif, c’est donc une négation. Mais une notion d’où l’idée de rapport est absente est soustraite aux limitations,… …   Encyclopédie Universelle

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