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GREAT PLAINS NORTH AMERICA [5 records]

Record 1 2019-03-29

English

Subject field(s)
  • Physical Geography (General)
  • Ecology (General)
CONT

The Great Plains of North America is a large region spanning the area from the end of the Midwest mesophytic forests to the front range of the Rocky Mountains(east to west), and from northern Canada to Central Texas(north to south).

French

Domaine(s)
  • Géographie physique (Généralités)
  • Écologie (Généralités)
DEF

Grande région qui s'étend du centre de la Saskatchewan (Canada) jusqu'au centre du Texas (États-Unis), limitée à l'ouest par les montagnes Rocheuses et à l'est par les Appalaches, caractérisée par un climat très sec et consacrée surtout au pâturage et à l'agriculture.

Spanish

Save record 1

Record 2 2018-01-26

English

Subject field(s)
  • Geological and Other Scientific Names
  • Biogeography
  • Ecology (General)
OBS

The Boreal Plains Ecozone is part of the flat Interior Plains of Canada, a northern extension of the Great Plains of North America.

OBS

The Boreal Plains are divided in 20 ecoregions.

French

Domaine(s)
  • Noms géologiques ou scientifiques
  • Biogéographie
  • Écologie (Généralités)
OBS

L'écozone des Plaines boréales fait partie des plaines de l'intérieur du Canada, étant elles-mêmes un prolongement nordique des grandes plaines d'Amérique du Nord.

OBS

Les Plaines boréales sont divisées en 20 écorégions.

Spanish

Save record 2

Record 3 2006-02-27

English

Subject field(s)
  • Climatology
  • Biogeography
DEF

Said of a type of climate in which there is slightly more precipitation (10-20 inches or 12-16 inches) than in an arid climate, and in which grasses are the characteristic vegetation.

CONT

Semi-arid regions often form on the margins of deserts, or in rainshadow basins. They are more hazardous than deserts because, from time to time, there is enough rainfall to support farming, which encourages people to overdevelop them and leads to catastrophe when a long period without rain follows... The Sahel of Africa is a region of semi-arid climate with a large population where disasters due to rain failures are common. The Great Plains region of North America is a semi-arid region. The disaster that produced the "Dust Bowl" was due to a period of rain shortage.

PHR

Semiarid area.

Key term(s)
  • sub-arid
  • sub arid
  • semi arid

French

Domaine(s)
  • Climatologie
  • Biogéographie
DEF

Se dit d'un climat comportant des précipitations irrégulières dont la hauteur annuelle moyenne est faible.

OBS

Les bordures des déserts sont soumises à ce genre de climat.

PHR

Région semi-aride.

Key term(s)
  • semi aride

Spanish

Save record 3

Record 4 2004-05-13

English

Subject field(s)
  • Atmospheric Physics
DEF

... a swift-moving cold frontal passage in the southern Great Plains [of North America], marked by a dark, blue-black sky with strong wintery winds from the northwest or north and temperatures that may drop 20°F to 30°F in a few minutes.

OBS

The term "blue norther" is most commonly associated with Texas. Various other names for the same phenomenon exist over the central and southern Plains [California norther, etc.]. There are also various theories as to the exact origin of the term. In general it is associated with a rapidly moving cold front (usually in the Autumn) that causes temperatures to drop quickly and that often brings with it precipitation and unsettled weather, followed by a period of blue skies and cold temperatures.

OBS

Some authors consider "blue norther" as a synonym of "Texas norther", others consider it as a related term. Compare to "Texas norther".

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Vent fort et froid, venant du nord, dans diverses parties de l'hémisphère Nord.

OBS

Le Grand dictionnaire encyclopédique Larousse répertorie «northern» au lieu de «norther». Norther figure dans les dictionnaires spécialisés de météorologie.

OBS

northern : Phénomène relevé en Amérique du Nord (centre et sud-est des États-Unis et occasionnellement golfe du Mexique), qui correspond à l'arrivée d'air polaire continental aux latitudes subtropicales, voire intertropicales.

OBS

Il ne semble pas y avoir de correspondance française pour le terme «blue norther». Aussi, le terme générique «norther» semble être le meilleur équivalent. Cependant, René Héroux, météorologue à Environnement Canada, suggère d'utiliser le terme anglais avec une note explicative sur la provenance de ce terme.

Spanish

Save record 4

Record 5 2001-11-30

English

Subject field(s)
  • Climatology
DEF

A climate of low rainfall characterised by irregular and unpredictable rainy seasons.

CONT

Mediterranean Seas. A true (salt-water) sea completely enclosed by land; large enough to be "oceanic" but restricted ocean dynamics; ... semi-arid climate with hot, dry summers, rainy winters ...

CONT

Semi-arid regions often form on the margins of deserts, or in rainshadow basins. They are more hazardous than deserts because, from time to time, there is enough rainfall to support farming, which encourages people to overdevelop them and leads to catastrophe when a long period without rain follows... The Sahel of Africa is a region of semi-arid climate with a large population where disasters due to rain failures are common. The Great Plains region of North America is a semi-arid region. The disaster that produced the "Dust Bowl" was due to a period of rain shortage.

OBS

Climate of 250 - 500 mm annual rainfall.

OBS

A climate characterized by 10"-20" of annual rainfall.

Key term(s)
  • sub-arid climate
  • subarid climate
  • sub arid climate

French

Domaine(s)
  • Climatologie
DEF

[...] climat [où] il fait chaud pendant l'été[,] très froid pendant l'hiver et [où] il pleut très peu. [Le temps est] très sec et les nuits sont froides.

CONT

La ville de Safi se caractérise par un climat semi-aride, avec un été chaud et sec (mai-octobre) et un hiver rigoureusement humide et tempéré (novembre-avril). Cependant, ce climat se trouve atténué par la présence de la chaîne montagneuse Atlas à l'Est et de l'Océan Atlantique à l'Ouest qui réduisent considérablement les grandes chaleurs de l'été. [...] La moyenne annuelle des précipitations dans la ville est l'ordre de 300 mm et ne dépasse guère les 200 mm pendant les saisons de sécheresse.

OBS

semi-aride adj. Se dit d'un climat comportant des précipitations irrégulières dont la hauteur annuelle moyenne est faible. (Les bordures des déserts sont soumises à ce genre de climat.)

Spanish

Save record 5

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