Sunda Shelf Seas: flushing rates and residence times
Summary: The Indonesian Sunda Shelf (average depth 48 m) is subject to many physical and biogeochemical processes with a strong impact from human activities. For investigation of marine environmental water properties, it is important to know characteristic water exchange rates. With realistic computer model results, analytical flushing rates and tracer residence times were compared for different shelf regions. Only the latter give detailed 3D pictures with times of less than 30 days to more than 2 years.
Ocean Sci. Discuss., 12, 863-895, doi:10.5194/osd-12-863-2015, 2015
On the modulation of the periodicity of the Faroe Bank Channel overflow instabilities
Summary: Quasi-regular eddies are known to be generated in the outflow of dense water through the Faroe Bank Channel. One year-long mooring records from the plume region show that (1) the energy associated with the eddies vary with a factor of ten throughout the year and (2) the frequency of the eddies shifts between 3-6 days and is related to the strength of the outflow. Similar variability is shown by a high resolution regional model and the observations agree with theory on baroclinic instability.
Ocean Sci. Discuss., 12, 823-861, doi:10.5194/osd-12-823-2015, 2015
Distribution of intermediate water masses in the subtropical northeast Atlantic
Ocean Sci. Discuss., 12, 769-822, doi:10.5194/osd-12-769-2015, 2015
Interactions between the Somali Current eddies during the summer monsoon: insights from a numerical study
Ocean Sci. Discuss., 12, 735-767, doi:10.5194/osd-12-735-2015, 2015
Sea level budget over 2005–2013: missing contributions and data errors
Ocean Sci. Discuss., 12, 701-734, doi:10.5194/osd-12-701-2015, 2015
Simulation of tsunami generation, propagation and coastal inundation in the Eastern Mediterranean
Summary: An advanced tsunami generation, propagation and coastal inundation model is applied to simulate representative earthquake-induced tsunami scenarios in the Eastern Mediterranean. Two areas of interest were selected after evaluating tsunamigenic zones and possible sources in the region: one at the SE of Crete (Greece) and one at the E of Sicily (Italy). Results are indicative of the model’s capabilities, as well of how areas in the Eastern Mediterranean would be affected by eventual larger events.
Ocean Sci. Discuss., 12, 673-699, doi:10.5194/osd-12-673-2015, 2015
The RADMED monitoring program: towards an ecosystem approach
Summary: The IEO-RADMED monitoring program is already conducting many of the evaluations required under the Marine Strategy Framework Directive (MFSD) along the Spanish Mediterranean coast. The different aspects of the ecosystem that are regularly sampled under this monitoring program are the physical environment and the chemical and biological variables of the water column, together with the planktonic communities, biomass and structure.
Ocean Sci. Discuss., 12, 645-671, doi:10.5194/osd-12-645-2015, 2015
Carbon-based phytoplankton size classes retrieved via ocean color estimates of the particle size distribution
Summary: Recent advances in ocean color remote sensing have allowed the quantification of the particle size distribution (and thus volume) of suspended particles in surface waters, using their backscattering signature. Here we leverage these developments and use volume-to-carbon allometric relationships to quantify phytoplankton carbon globally using SeaWiFS ocean color data. Phytoplankton carbon concentrations are partitioned among three size classes - picoplankton, nanoplankton, microplankton.
Ocean Sci. Discuss., 12, 573-644, doi:10.5194/osd-12-573-2015, 2015
Accelerated sea level rise and Florida Current transport
Summary: Changes in mass transport of the Florida Current induce significant coastal sea level changes along the Florida Straits and middle Atlantic coast of North America. Analysis of Florida Current transport data finds a decrease in mean transport over the last decade. This decrease that is coincident with a decrease in AMOC and acceleration of coastal sea levels along the Florida Straits.
Ocean Sci. Discuss., 12, 551-572, doi:10.5194/osd-12-551-2015, 2015
An estimate of the Sunda Shelf and the Strait of Malacca transports: a numerical study
Ocean Sci. Discuss., 12, 275-313, doi:10.5194/osd-12-275-2015, 2015
Impact of currents on surface fluxes computation and their feedback on coastal dynamics
Summary: The paper studies the impact of the use of relative winds (i.e. winds minus ocean currents) to compute heat and momentum fluxes at sea surface. This was done in an area interested by mesoscale eddies and by a local coastal upwelling. Impact is relevant both for heat and momentum fluxes, inferring respectively on surface temperature (improved) and on currents patterns and magnitude. Currents in SW part shows a feedback on itself through momentum fluxes, also modyfing upwelling patterns.
Ocean Sci. Discuss., 12, 1-30, doi:10.5194/osd-12-1-2015, 2015