Group items tagged

Malaysia has said it will send a team to the Maldives to inspect debris found on the archipelago to determine whether it might be related to missing MH370.

Malaysia has said it will send a team to the Maldives to inspect debris found on the archipelago to determine whether it might be related to missing MH370.

At-sea inspections reveal shark-finning practices in the Western Indian Ocean.

Scientists have had a rare opportunity to inspect a dead killer whale that washed up at Plettenberg Bay this week. And its stomach contents have painted a sad story of how she may have spent her last days.

Scientists have had a rare opportunity to inspect a dead killer whale that washed up at Plettenberg Bay this week. And its stomach contents have painted a sad story of how she may have spent her last days.

Some Old Movies Become Classics - A Case Study Determining the Scientific Value of ROV Inspection Footage on a Platform on Australia's North West Shelf.

The ultra large container ship Hong Kong Express collided with general cargo ship BBS Sky on 10 nautical miles off Hollum, Netherlands. The both ships were heading in northern direction and accident happened during overtaking. The container carrier suffered no damages, while the German general cargo ship BBS Sky got small scratch above the waterline, but remained seaworthy and continue her voyage. The local authorities were informed about the duty officers of both ships about the collision, but after it was estimated the damages are minor, vessels were released to resume voyages and will be inspected in the next port of call.

British skipper Sam DAVIES informed her team that her IMOCA Initiatives Coeur had struck a floating object at around 1900hrs UTC this evening. She is heading north at reduced speed and will inspect her boat to assess the damage and discuss actions with her team. Sam DAVIES is unhurt.

Monthly composites of remote sensing reflectance at 555 nm wavelength (Rrs555) from ocean color imagery of the MODIS sensor onboard the Aqua platform were used to characterize the spatial and temporal variability of coastal plume in the Sofala Bank and its relation to river discharge, local rainfall, and wind speed. To achieve the objective, maps of monthly composites of Rrs555 over the Sofala Bank were inspected and statistical analysis was performed, including correlation, analysis of variance, and wavelet coherence between environmental variables and both plume area and Rrs555. Climatology of Rrs555 revealed that both plume dispersion and Rrs555 values are higher during June to December and lower during January to May. A positive correlation (r = 0.77) between wind speed and monthly time series of Rrs555, and a negative correlation between the Zambezi river discharge (r = −0.21) and rainfall (r = −0.67) with Rrs555 were found. These results suggest that variation of suspended matter in the Sofala Bank is mainly controlled by erosion and re-suspension by winds rather than the input of terrigenous matter by the Zambezi River discharge and rainfall, assuming that Rrs555 can be a valid proxy for the inorganic suspended matter. The southern portion of the Sofala Bank (i.e., near the mouths of the Pungue and Buzi Rivers) presented higher values of Rrs555 if compared to the center region near Zambezi river mouth and the northern region near Licungo river mouth. The higher Rrs555 values in the southern region might be associated with higher re-suspension rates due to increased tide mixing, dredging activities, and the shallower nature of bathymetry in the southern region. The dominance of wind in controlling the variability of suspended sediments and the eventual relatively greater contribution of Pungue and Buzi River than the Zambezi in supplying sediments could represent an evidence of weakening of Zambezi River supply of sediments, a process that might have start

Recent studies suggest that pelagic sediments can enrich rare-earth elements (REE) acting as a significant reservoir for the global REE budget as well as a potential resource for future exploitation. Although Ca-phosphate (e.g., bioapatite fossils) and Fe-Mn (oxyhydr)oxides (e.g., micronodule) have been considered important REE carriers in deep-sea sediments, the proportion of REE held by each mineral phase remains enigmatic. Here, we have investigated the sediments from two promising REE-rich prospective areas: the Tiki Basin in the Southeast Pacific (TKB) and the Central Indian Ocean Basin (CIOB). The mineral grains including bioapatite fossils and Fe-Mn micronodules have been inspected individually by in-situ microscale analytical methods. Correspondently, the REE bound to Ca-phosphate and Fe-Mn (oxyhydr)oxides have been sequentially extracted and quantified. The crucial role of Ca-phosphate is substantiated by sequential leaching which reveals its dominance in hosting ~69.3-89.4% of total REE. The Fe-Mn (oxyhydr)oxides carry ~8.2% to 22.0% of REE in bulk sediments, but they account for ~70.0-80.5% of Ce owing to their preferential adsorption of Ce over the other REE. Surface sediment on modern seafloor can accumulate high REE contents resulting from the REE scavenging by the host phases within the range of sediment-seawater interface. Differences between TKB and CIOB samples indicate that the REE enrichment in the deep-sea environment may be controlled by multiple factors including the productivity of overlying seawater (e.g., phosphorus flux), water depth relative to carbonate compensation depth (CCD), sedimentation rate, redox condition, and hydrothermal vent input (e.g., Fe-Mn precipitations).

Perte du "MOL Comfort" : du flambage constaté sur les sister-ships.