Taking Care of the Sea

The sea was once only a highway for vessels and trade but this is now only one aspect of a spectrum of activities including the protection of maritime assets. While there is universal updated hydrographic data coverage and there are changes in trade routes, types of cargo and vessels, there is a need for even greater co-operation by all involved in ‘Taking Care of the Sea’. The Continental and Island State of the Western Indian Ocean region recognised the need to improve the safety of navigation through their regional waters and to try to enforce regulations intended to protect their... (read more)
2013-01-18 02:02:48

The Dutch Sector of the North Sea

A geological introduction
The North Sea directorate of the Ministry of Public Works and the department of Geo-Marine & Coast of The Netherlands Institute of Applied Geoscience-TNO jointly carried out a geological mapping programme and the assessment of industrial sand deposits in the Dutch sector of the North Sea. A brief outline of the methods used and the knowledge obtained is given. The Dutch part of the North Sea (NCP) occupies an area of 57,000 km2 which is larger than the mainland of The Netherlands (Figure 1). In addition to traditional activities, like fishery and shipping, since the 1960s there have been new... (read more)
2008-01-01 01:00:00

The Hidden Landscape of the Baltic Sea

The Baltic Sea Bathymetry Database (BSBD) gathers, visualises and distributes data about the water depth – bathymetry – for the areas of all Baltic Sea countries. Bathymetric data of sufficiently high quality is a requirement for many administrative and research-related tasks. The BSBD offers complete, homogeneous and up-to-date Baltic Sea bathymetry data from all Baltic Sea national hydrographic offices under the umbrella of the Baltic Sea Hydrographic Commission. The BSBD website is developed to meet the requirements of maritime and environmental planning as well as scientific research. There are several fields of application where bathymetry data is needed –climate modelling,... (read more)
2013-09-13 04:32:20

States Parties to Law of Sea Convention Elect Continental Shelf Commission

The States parties to the Convention on the Law of the Sea today elected Fernando Manuel Maia Pimentel of Portugal to serve in his personal capacity for a five-year term beginning Monday on the Commission on the Limits of the Continental Shelf, thereby completing the panel of 21 experts to examine submissions by coastal States for the delineation of the continental shelf.     As the seventeenth meeting of States parties since the Treaty entered force in 1994 moved into its second day, experts in the fields of geology, geophysics, hydrography and/or geodesy, from Germany, Portugal and the United Kingdom,... (read more)
2007-06-19 09:31:45

Oceanographic Atlas of the Black Sea

The State Hydrographic Service of Ukraine has issued an Oceanographic Atlas of the Black Sea and the Sea of Azov, aimed at improving informational support for marine economic activities and scientific research in this region.     The Atlas is bilingual (all legends and explanatory notes are in English and Ukrainian). Since the atlas contains complex scientific information on the environmental conditions and main peculiarities of the Black Sea and the Sea of Azov, it is expected that scientists, navigators and mariners will take a keen interest in the Atlas.    The atlas represents an important milestone in the decade-long... (read more)
2009-10-28 01:25:04

3D Sea Currents of the Channel

The Service Hydrographique et Océanographique de la Marine (SHOM, France) has made 3D marine currents available at the surface, mid-depth and sea-floor levels. The English Channel is the first area to be covered. The information contains vectorised data on the water levels, the speeds and the directions of the currents, georeferenced maps displaying the current area and maps of the maximum current speed. SHOM has been developing 3D models of the Channel and Atlantic areas since 2009, satisfying the needs of current data in the entire water column. The 3D models contain additional information about the vertical structure of the... (read more)
2013-03-06 12:46:26

Joint Mapping of the Barents Sea

Norway and Russia will this month begin a joint mapping of undiscovered natural resources in the Barents Sea and around the Norwegian Arctic archipelago of Svalbard. The Norwegian Petroleum Directorate (NPD), the University of Oslo (UiO) and the Russian Geological Institute (GIN RAS) will participate in the charting mission. The main task is charting the area, and not to explore for oil and gas. NPD has earlier estimated that two thirds of Norway's undiscovered resources are to be found in the northern regions. The UiO has awarded a contract to the Russian research vessel Akademik Nikolay Strakhov which will carry out most... (read more)
2009-08-27 09:23:43

The Mapping of the Sea: Terra Incognita on the Globe

The bathymetry of the ocean floor is the key to the geological understanding of the various tectonic and ecological processes in the deep sea. Building on the pioneering work of Marie Tharp, the name given to the lecture series at the GEOMAR Helmholtz Center for Ocean Research Kiel, Germany, Dr Donna Blackman from the Scripps Institution of Oceanography in San Diego, USA, is mapping the seafloor. However, despite her and other people's efforts, only a fraction has been mapped and 90% of the deep sea continues to be 'Terra Incognita'. In her talk at the 18th Marie-Tharp Lecture, she presented... (read more)
2017-05-29 10:02:51

Lines in the Sea

Maritime Boundary Delimitation
Under the 1982 United Nations Convention on the Law of the Sea (UNCLOS) coastal states may claim rights over the resources of the sea and seabed up to 200 nautical miles (M) from their coasts, and seabed jurisdiction out to 350M where the continental margin is wider than 200M. But many boundaries are ill defined and even disputed. With the oil and gas industry operating in ever-deeper waters, the need for geodetically precise maritime boundaries has become increasingly pressing. This article explores the challenges involved. More than 30% of the world’s oceans now fall under state jurisdiction, with overlapping maritime... (read more)
2007-04-04 12:00:00

Mountains in the Sea

One can hardly discuss the configuration of the deep ocean bed without eventually using the term ‘seamount’. Today, the existence of tens of thousands if not over 100,000 seamounts is taken for granted. But in the not so distant past, their existence was unknown and not even suspected.  In 1878, Alexander Agassiz, one of the greatest oceanographers of the nineteenth century, wrote: “The monotony, dreariness, and desolation of the deeper parts of the submarine scenery can scarcely be realized. The most barren terrestrial districts must seem diversified when compared with the vast expanse of ooze which covers the deeper parts... (read more)
2016-05-19 03:53:33
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