These OS sessions covering different scientific topics have been merged to technicaly permit PICO presentation of their abstracts. The original definition of the sessions are the following.

OS2.5
The 2000 km long, 360 km wide Red Sea is one of the few places on Earth where creation of a young ocean by rifting and subsequent splitting of a continent is presently occurring. While largely amagmatic continental rifting takes place in the northern Red Sea, ocean floor creation in the south is coupled with active volcanism. The basin is the host to exotic brine-filled Deeps, some of which hold significant hydrothermal mineral deposits, and extensive evaporite deposits. Ocean water exchange with the Indian Ocean through the Bab el Mendeb Strait is limited, and high surface evaporation, water column stratification and the basin geomorphology dictate characteristic patterns of ocean circulation, marine physicochemical gradients, ecosystems and environment.
Following a revivial in interest in studying the Red Sea, this session will focus on an interdisciplinary overview of recent work in the area. We will focus on the geological processes, ocean chemistry, bio-geosciences, biology and ecosystem monitoring, oceanography, coastal monitoring, environmental monitoring and natural resources.

OS5.4
Geostrophic turbulence underlies large scale flow in most rotating stratified environments, including the atmosphere and oceans. Its importance derives from the fact that it can help determine the structure of large flow itself, can lead to formation of coherent-structures, and can affect other aspects such as mixing. We invite contributions to address this topic from any of a theoretical, computational, experimental, or observational perspective. Topics of interest include but are not limited to: cascade dynamics, topographic effects, interactions between balanced and imbalanced turbulence, dynamics and formation of alternating zonal jets, low frequency regime transitions and statistical mechanical considerations of geostrophic turbulence.

OS4.8
The ocean is one of the natural environments that have most fascinated humans since the beginning of time. Although we now have quite a lot of information about the science of the ocean, however, very few persons have any idea about how the ocean “works”, what is its impact on Earth, etc.
Outreach and education are thus of foremost importance, in a field that has been completely revolutionized in the last fifty years or so.
This session addresses how we communicate and educate the public, pupils, students and even the guy in the desk next door about ocean. Although we welcome and encourage all contributions presenting in this topic, we are particularly interested in:
1- The use of online datasets in education & outreach, and the use of visualisation tools in education & outreach, and of any innovative tools that enables students to manipulate “real” data
2- Feedbacks and assessments on past and current ocean education & outreach projects (or education & outreach parts of ocean projects)
3- Feedbacks and assessments from “end users” of outreach (e.g. media persons, teachers, etc.)
4- Contributions by science and education projects that try to reach across frontiers by involving research and schools in different countries.
5- Innovative approaches that try to attract the public and pupils to the fascination of ocean sciences.