Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 920 résultats pour les termes de recherche: transport maritime

Affichage des résultats: 291 à 300

h

h

Le tourisme et les activités récréatives

La Nouvelle-Calédonie est un magnifique archipel qui possède de nombreux attraits touristiques. Il y existe une grande diversité de paysages, avec des montagnes et des plages paradisiaques ainsi qu'un lagon riche en coraux et en poissons. Le clim...

Cross-shelf structure of coastal upwelling : a two - dimensional extension of Ekman's theory and a mechanism for inner shelf upwelling shut down

Sea-surface temperature images of the coastal upwelling regions off Northwest Africa show that the core of upwelling is sometimes located far from the coast. This has been documented in three regions that share a common feature, namely a wide and sha...

Provenance discrimination of siliciclastic sediments in the middle Okinawa Trough since 30 ka: Constraints from rare earth element compositions

The late Quaternary paleoceanography and paleoenvironment in the Okinawa Trough, East China Sea, have been well reconstructed over the last decade, while in contrast the provenance of terrigenous sediments that have accumulated there remains enigmati...

Clay mineral evolution in the central Okinawa Trough since 28 ka: Implications for sediment provenance and paleoenvironmental change

The Okinawa Trough is a natural laboratory for the study of later Quaternary land-ocean interaction and paleoenvironmental changes. In this study we reconstruct the evolution of clay mineral assemblages in Core DGKS9604 retrieved from the central Oki...

Regional circulation around New Caledonia from two decades of observations

The regional and near-coastal circulation around New Caledonia is investigated using a compilation of more than 20 years of observations. Velocity profiles acquired by Shipboard Acoustic Doppler Current Profiler (SADCP) during 109 research cruises an...

Responses of two scleractinian corals to cobalt pollution and ocean acidification

The effects of ocean acidification alone or in combination with warming on coral metabolism have been extensively investigated, whereas none of these studies consider that most coral reefs near shore are already impacted by other natural anthropogeni...

Atelier sur les indicateurs environnementaux en eau douce INDICATEURS A DÉVELOPPER : de l'utilité d'indicateurs végétaux, introduction à la piste...

Séance plénière 5 EMC2I se questionne sur l'utilisation de nouveaux indicateurs. les diatomées comme outils d'évaluation d'un milieu ? Il nous présente les avantages et les inconvénients.

"Liaisons dangereuses" : the invasive red-vented bulbul (Pycnonotus cafer), a disperser of exotic plant species in New Caledonia

The biodiversity hotspot of New Caledonia hosts high levels of endemism (74% of flora) that is threatened increasingly by climate change, habitat reduction, and invasive species. The fruit-eating red-vented bulbul (Pycnonotus cafer) is currently inva...

Simultaneous combined XRF-XRD analysis of geological sample: New methodological approach for on-site analysis on New-Caledonian Ni-rich harzburgite

There is a growing interest in on-site, real-time analytical solutions for mining and environmental projects to characterize large areas and/or volumes of raw materials that are sometimes highly heterogeneous in terms of elemental distribution and mi...

Fiche de données environnementales de substances chimiques : Le nickel | en bref

Dans le cadre de ses missions de surveillance et de communication auprès du grand public, l'OEIL a lancé un projet de rédaction de fiches sur les polluants utilisés en Nouvelle-Calédonie, leur nature et les spécificités éventuelles de leurs i...