Le service de Podcasts de l’Institut de la Montagne met à votre disposition un ensemble de contenus multimédia produits par l’Association pour le développement de l’Institut de la Montagne (ADIM) avec ses partenaires ou des laboratoires de recherche. Ces contenus sont issus d’enregistrements de cours dans le domaine de la géographie humaine et physique. Les ressources pédagogiques proposées s’adressent plus particulièrement aux étudiants et aux formateurs.
Le Podcast « Ressources pédagogiques en géographie » de l’Institut de la Montagne regroupe des enregistrements vidéo réalisés dans le cadre de cours d’anglais scientifique.
Les épisodes (2)
- Caves, speleothems, and past climate
This English course deals with environmental archives and characteristics of mineral deposits formed in caves: the speleothems.
The principal types of caves, their formation and development by geologic processes are presented in this video.
We understand how study on caves help paleoclimatologist to understand the past climate on climate-sensitive properties of speleothems.
For exemple, speleothems are used to study past climates, to identify periods of moisture and changes in global sea level, to establish the chronology of glacier advance and to determin the timing of major climate events.
This lecture is given by Russell Drysdale from the University of Melbourne (first part).
Mots-clés : paleoclimatology, environnemental archives, paleoclimate, caves, speleothems, Australia ---
Auteur(s) : Russel Drysdale ---
Paru le 24 Jan 2012 12:42:29 ---
Média : vidéo MPEG-4
En savoir plus sur cet épisode...
- Using speleothems to investigate rainfall history
How knowledge in paleoclimatology is used to understand the long-term patterns of drought?
How do the paleoclimatologists proceed? What are the instrumental methods and how can we read and analyse climate record?
The lecturer puts forth the hypothesis that modern speleothems record the patterns of rainfall change.
Speleothems, as environmental archives, give information about past climate on rainfall history.
The lecturer explains us the scientific approach to test the sensitivity of the caves with physical and chemical properties of drips water and describe the scientific instrumentation and the radiometric dating.
The obtained results from the instrumental climate record could be an indicator for politic decision makers to manage water resources in the Sydney region and maybe anticipate special drought events.
This lecture is given by Russell Drysdale from the University of Melbourne (second part).
Mots-clés : paleoclimatology, environnemental archives, paleoclimate, rainfalls history, caves, speleothems, water resources, drought, Australia ---
Auteur(s) : Russel Drysdale ---
Paru le 24 Jan 2012 11:52:19 ---
Média : vidéo MPEG-4
En savoir plus sur cet épisode...
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