Publication

Modélisation spatiale de l'habitat d'espèces végétales Apports du modèle numérique d'altitude à très haute résolution

Régis Caloz
2004
Student Projects

Abstract

Le domaine de l'acquisition de données altimétriques a fait un bond spectaculaire avec l'avènement de la technologie laser. Cette dernière permet la création de modèles numériques d'altitude (MNA) à très haute résolution, qui décrivent très en détail le relief du terrain. En écologie végétale, discipline qui s'intéresse aux relations entre plante et environnement, il est pressenti que le MNA laser pourra conduire à des améliorations notoires dans la modélisation de la distribution d'espèces dans le paysage.

Official source

https://infoscience.epfl.ch/entities/publication/8dfeead2-1118-4dbc-a921-1fcb185467aa

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Régis Caloz
2004
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8dfeead2-1118-4dbc-a921-1fcb185467aa

About this result

Related concepts (4)

Altitude sickness

Altitude sickness, the mildest form being acute mountain sickness (AMS), is a harmful effect of high altitude, caused by rapid exposure to low amounts of oxygen at high elevation. People can respond to high altitude in different ways. Symptoms may include headaches, vomiting, tiredness, confusion, trouble sleeping, and dizziness. Acute mountain sickness can progress to high-altitude pulmonary edema (HAPE) with associated shortness of breath or high-altitude cerebral edema (HACE) with associated confusion.

Altitude training

Altitude training is the practice by some endurance athletes of training for several weeks at high altitude, preferably over above sea level, though more commonly at intermediate altitudes due to the shortage of suitable high-altitude locations. At intermediate altitudes, the air still contains approximately 20.9% oxygen, but the barometric pressure and thus the partial pressure of oxygen is reduced. Depending on the protocols used, the body may acclimate to the relative lack of oxygen in one or more ways such as increasing the mass of red blood cells and hemoglobin, or altering muscle metabolism.

Altitude

Altitude or height is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The exact definition and reference datum varies according to the context (e.g., aviation, geometry, geographical survey, sport, or atmospheric pressure). Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage. Vertical distance measurements in the "down" direction are commonly referred to as depth.