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TOPOGRAPHIE MONTAGNE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2022-06-29

English

Subject field(s)
  • Meteorological Forecasting, Data Measurement and Analysis
DEF

The study of weather phenomena associated with moutains or topographically complex areas.

CONT

The subject of mountain meteorology is connected with the broader fields of ecology and geology in several ways. Many of the Earth's deserts are caused by the barrier effects of mountain ranges. Rain forests often occur on windward mountain slopes. Local ocean circulations are influenced by the cold air reaching the sea through mountain passes, and by the freshwater input to the oceans, channeled by the terrain.

French

Domaine(s)
  • Prévisions météorologiques et mesure et analyse des données
CONT

La météorologie de montagne consiste à étudier l'influence de la topographie sur l'atmosphère. Les montagnes représentent approximativement 25 % de la surface continentale terrestre et abritent environ la même proportion de la population mondiale [...] la compréhension des mécanismes météorologiques induits par les montagnes est donc essentielle.

Spanish

Save record 1

Record 2 2001-09-14

English

Subject field(s)
  • Atmospheric Physics
  • Environmental Studies and Analyses
CONT

Terrain can influence the transport and diffusion of hazardous gases to a critical degree, especially for heavier-than-air gases (such as chlorine). Channelling of winds along valleys can lead to transport of gases with restricted lateral diffusion for considerable distances. In light winds, the slope of terrain has a significant influence on local airflow.

French

Domaine(s)
  • Physique de l'atmosphère
  • Études et analyses environnementales
CONT

[Influence de la topographie sur le gradient de température et sur les vents]. Le relief en général exerce une action dynamique sur l'écoulement de l'air. [...] D'une façon générale, les filets d’air ont tendance à épouser plus ou moins le profil du relief, de sorte qu'une montagne engendre une zone d’ascendance de l'air sur sa face au vent suivie d’une zone de descendance.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Estudios y análisis del medio ambiente
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