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METEOROLOGICAL ORGANISATION [5 records]

Record 1 2005-04-08

English

Subject field(s)
  • Meteorology
  • River and Sea Navigation
DEF

Either of two arbitrary series of numbers from 0 to 9, used separately or in combination to define qualitatively the degree to which the ocean surface is disturbed by fresh waves (sea) generated by local winds, and by decaying waves, or swell, propagated from their distant wind sources ...

CONT

Douglas scale, denomination, height waves (m): 0 calm, 0 m.; 1 nearly calm, < 0.1; 2 little moved, 0.1 - 0.5; 3 moved, 0.5 - 1.3; 4 a lot moved, 1.3 - 2.5; 5 rough, 2.5 - 4; 6 much rough, 4 - 6; 7 flood, 6 - 9; 8 much flood, 9 - 14; 9 stormy, > 14.

OBS

The "state of the sea" is the locally observed motion of the waves generated by the combined effects of "wind sea" and "swell."

OBS

DOUGLAS, Douglas Sea State. Douglas Sea Scale. Douglas Scale. Douglas Swell Scale. Douglas Sea and Swell Scale.... what do they mean? Douglas is the name given to a set of tables used to describe sea and swell conditions. The Douglas Sea tables refer to the waves generated by the wind in the locality at the time, the Douglas Swell tables refer to decaying waves originally generated by distant winds, and the Douglas Sea and Swell tables are a combination of the two. Originally, Douglas made no mention of heights or wave periods, and used only words to define the sea and swell conditions, e. g., slight sea, moderate sea or long low swell, short moderate swell. The combined definition was produced by a sea description followed by a swell description. But different publications have interpreted the Douglas Scales to produce wave heights and periods; and different interpretations have led to confusion. According to the World Meteorological Organisation, there is no internationally recognised definition or official status for any of the Douglas scales.

OBS

The Douglas scale is a scale to estimate the state of the sea whereas the Beaufort scale is an internationally recognised table with a standard set of wind speed values.

OBS

state-of-sea scale; sea state scale: these terms frequently refers to the "Douglas scale" and sometimes to the "Beaufort scale" ("Beaufort sea state scale)." Sea state numbers and wave height values are sometimes appended to Beaufort tables, however they are not standardized and may differ from one source to another.

French

Domaine(s)
  • Météorologie
  • Navigation fluviale et maritime
DEF

Barême exprimant l'agitation de la surface de la mer par une suite de nombres de 0 à 9 (ou code «S»).

CONT

Francis Beaufort (v. 1774 - 1857). Son échelle anémométrique, notée de 0 à 12, est basée sur le calcul de la pression exercée par le vent, et est utilisée dans la marine depuis 1874. Ne pas confonde avec l'échelle de l'état de la mer (indice 0 à 9) nommée échelle de Douglas.

CONT

La description de l'état de la mer correspond à une échelle (échelle de Douglas) différente de celle de l'échelle de Beaufort, à laquelle elle est cependant souvent associée. Des hauteurs probables de vagues sont données avec chaque échelon, de calme à énorme.

OBS

échelle de Douglas : Du nom de l'amiral anglais Percy Douglas (1876-1939).

OBS

échelle de Douglas; échelle d'état de mer : termes uniformisés par le Comité de normalisation de la terminologie navale.

Spanish

Campo(s) temático(s)
  • Meteorología
  • Navegación fluvial y marítima
DEF

Escala numérica de la altura promedio de las olas, en la cual los números aumentan con la altura de las olas.

OBS

Consta de diez categorías, cada una de las cuales recibe un nombre característico y comprende intervalos de altura del oleaje que corresponden a uno o dos grados de la escala de viento de Beaufront.

Save record 1

Record 2 2003-06-10

English

Subject field(s)
  • System Names
  • Satellite Telecommunications
OBS

SADIS is an operational system dedicated to primarily aeronautical meteorological information in line with ICAO(International Civil Aviation Organisation) worldwide provision. It provides a point to multipoint service on a 24-hrs. basis via satellite. The SADIS uplink is situated at the Mercury Communications at Whitehill Earthstation in UK.

Key term(s)
  • Satellite distribution system for information relating to air navigation

French

Domaine(s)
  • Noms de systèmes
  • Télécommunications par satellite
Key term(s)
  • Système de diffusion par satellite d'informations relatives à la navigation aérienne

Spanish

Campo(s) temático(s)
  • Nombres de sistemas
  • Telecomunicaciones por satélite
Save record 2

Record 3 2002-12-13

English

Subject field(s)
  • International Bodies and Committees
  • Astronomy
OBS

IUCAF is an international committee(set up in 1960 by URSI, IAU, and COSPAR) that works in the field of spectrum management on behalf of the passive radio sciences, like radio astronomy, remote sensing, space research, and meteorological remote sensing. The IUCAF brief is to study and coordinate the requirements for radio frequency allocations established by the afore-mentioned sciences and to make these requirements known to the national and international bodies responsible for frequency allocations. IUCAF has official standing as a nonvoting organisation at the ITU, the International Telecommunication Union, located in Geneva, Switzerland.

French

Domaine(s)
  • Organismes et comités internationaux
  • Astronomie
Key term(s)
  • Commission interunions pour l'attribution de fréquences à la radioastronomie et à la science

Spanish

Campo(s) temático(s)
  • Organismos y comités internacionales
  • Astronomía
Save record 3

Record 4 2002-09-23

English

Subject field(s)
  • International Bodies and Committees
  • Meteorology
  • Spacecraft
OBS

EUMETSAT is an intergovernmental organisation created through an international convention agreed by 17 European Member States : Austria, Belgium, Danemark, Finland, France, Germany, Greece, Ireland, Italy, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Luxembourg will soon become the 18th Member State. These States fund the EUMETSAT programmes and are the principal users of the systems. EUMETSAT also has four Cooperating States : Slovak Republic, Hungary, Poland and Croatia. EUMETSAT's primary objective is to establish, maintain and exploit European systems of operational meteorological satellites. EUMETSAT is responsible for the launch and operation of the satellites and for delivering satellite data to end-users as well as contributing to the operational monitoring of climate and the detection of global climate changes.

French

Domaine(s)
  • Organismes et comités internationaux
  • Météorologie
  • Engins spatiaux

Spanish

Campo(s) temático(s)
  • Organismos y comités internacionales
  • Meteorología
  • Naves espaciales
Save record 4

Record 5 2002-07-04

English

Subject field(s)
  • International Bodies and Committees
  • Meteorology
  • Water Transport
OBS

Much of the work of the World Meteorological Organisation is done within the Technical Commissions by working groups of experts, who ensure that Members are informed of technical advances and means of exploiting them.... There are four Applications Commissions : 1. Commission for Aeronautical Meteorology. 2. Commission for Agricultural Meteorology. 3. Commission for Marine Meteorology. 4. Commission for Climatology.

French

Domaine(s)
  • Organismes et comités internationaux
  • Météorologie
  • Transport par eau
OBS

Organisation météorologique mondiale.

Key term(s)
  • Commission de météorologie marine

Spanish

Campo(s) temático(s)
  • Organismos y comités internacionales
  • Meteorología
  • Transporte por agua
OBS

Organización Meteorológica Mundial.

Save record 5

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