Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1425 résultats pour les termes de recherche: changement climatique

Affichage des résultats: 531 à 540

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Nickel and ocean warming affect scleractinian coral growth

The sensitivity of corals and their Symbiodinium to warming has been extensively documented; however very few studies considered that anthropogenic inputs such as metal pollution have already an impact on many fringing reefs. Thus, today, nickel rele...

Exploration de la performance de la gouvernance des petites pêcheries du Pacifique Sud par une démarche de recherche-action

Notre travail est une contribution à l'élaboration d'un cadre de recherche pour étudier le développement institutionnel pour la cogestion des ressources halieutiques communes, qui reste un mode de gouvernance minoritaire à l'échelle mondiale ma...

ENSO signals in the vicinity of New Caledonia, South Western Pacific

Data collected in an area enclosing New Caledonia are analysed both for the open ocean (17 degrees S-27 degrees S, 169 degrees E-170 degrees E; 1972-1992) and for one point in its lagoon (1967-1993), in order to improve our knowledge of the regional ...

Acclimatization of massive reef-building corals to consecutive heatwaves

Reef-building corals typically live close to the upper limits of their thermal tolerance and even small increases in summer water temperatures can lead to bleaching and mortality. Projections of coral reef futures based on forecasts of ocean temperat...

Chemical and physical transfers in an ultramafic rock weathering profile: 2. Dissolution vs. accumulation of platinum group minerals

The chemical weathering of ultramafic rocks has resulted in eluvial concentration of Pt-group minerals (PGM) in lateritic weathering profiles of southern New Caledonia. The Pt mineralization interpreted as being primary consists of Pt-group minerals ...

Earliest Eocene (53 Ma) convergence in the Southwest Pacific; evidence from pre-obduction dikes in the ophiolite of New Caledonia.

Uncertainty about timing and location of the initiation of convergence in the western and south western Pacific greatly hinders accurate plate tectonic reconstructions of subduction systems in that area. The chemistry and age of dikes intruding mantl...

Gestion du passif de l'activité minière. Rapport scientifique

Le programme « Gestion du passif de l’activité minière et remédiation (engravement et sédimentation) » s’est intéressé aux dégradations engendrées par les anciennes décharges minières et les sols mis à nus par les exploitations (zone...

Chemical and physical transfers in an ultramafic rock weathering profile: 2. Dissolution vs. accumulation of platinum group minerals

The chemical weathering of ultramafic rocks has resulted in eluvial concentration of Pt-group minerals (PGM) in lateritic weathering profiles of southern New Caledonia. The Pt mineralization interpreted as being primary consists of Pt-group minerals ...

Earliest Eocene (53 Ma) convergence in the Southwest Pacific; evidence from pre-obduction dikes in the ophiolite of New Caledonia.

Uncertainty about timing and location of the initiation of convergence in the western and south western Pacific greatly hinders accurate plate tectonic reconstructions of subduction systems in that area. The chemistry and age of dikes intruding mantl...

État de l'art sur la détermination du régime du feu par des moyens de télédétection

Ce rapport a pour but de faire un état de l'art des techniques qui permettent d'évaluer le régime du feu par des moyens de télédétection. Il comprend également une partie descriptive sur les données disponibles qui pourront être uti...