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DATA REQUIREMENTS ACCORDING TO THE SCIENTIFIC AND TECHNICAL GUIDELINES OF THE CLCS. Harald Brekke. Types of data required. Bathymetric (water-depth) data to delineate the foot of the continental slope and the 2500 meters isobath - PowerPoint PPT Presentation
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DATA REQUIREMENTS
ACCORDING TO THE
SCIENTIFIC AND TECHNICAL
GUIDELINES OF THE CLCS
Harald Brekke
Types of data required
• Bathymetric (water-depth) data to delineate the foot of the continental slope and the 2500 meters isobath
• Seismic reflection and refraction data to determine the thickness of sedimentary rocks
• Magnetic and gravity field data when needed to support other data
RL9909005/1
Acquisition of bathymetric data
Bathymetric map
Multibeam bathymetry survey
RL9909005/2
Cable
Acquisition of seismic data
Source Hydrophone
Seismic profile of continental margin
Seismic profile of sediment basin
Information requested in all cases
• Maps showing the overview and details of the limit of the continental shelf for the coastal State, and the criteria by which it is determined
• Map showing the location of the foot of the continental slope (FOS), and the locations of the seismic and bathymetric profiles used to determine the FOS
• Bathymetric contour maps where used to identify FOS and the 2500 metre isobath
Information requested in all cases (continued)
• Maps showing the baselines, the 200 nautical miles limit, and the 350 nautical miles possible maximum limit
• Map showing the 2500 meters isobath and the 100 nautical miles extension line defining possible maximum limit
Article 76 - Delineation principles
100
M
350
M
200
M
60 M 25
00 m
Land
SEDIMENT THICKNESS 1% OF DISTANCE TO FOS
Baseline
FO O T OF
THE C
ON
TIN
EN
TA
L SL
OP
E (F
OS)
Information requested in all cases (continued)
• All bathymetric profiles (sections) referred to, annotated with locations of foot of the continental slope (FOS)
• Tables of the relevant bathymetric and seismic survey parameters for all surveys referred to
Information requested on applying sediment thickness formula
• All seismic profiles (two-way time sections) used to determine sediment thickness (interpreted and original versions)
• All depth-converted profiles used to determine the sediment thickness distribution on the basis of which the fixed limit line points are established
Information requested on applying sediment thickness formula
(continued)
• Table of details of all velocity data used for converting two-way travel time to depth
• Map of location and type of all velocity data used for the depth conversion
• Full description of method(s) applied for the depth conversion
Format of submission
• Executive summary
• Main body
• Annex containing all supporting scientific and technical data
Executive summary
• Maps in appropriate scale and coordinates showing the outer limit of the continental shelf, and the baselines when relevant
• Which provisions of article 76 are invoked• Names of any CLCS member who may
have given advice in the preparation of the submission
• Any disputes as referred to in rule 44 of the Rules of Procedure of CLCS
Main body
• Detailed description of all data sets, maps, technical procedures and scientific methodologies applied in the implementation of article 76
• References to the basic data be made for documentation at each relevant step
Annex
• A copy of all data referred to in the main body, and in accordance with the requirements of Chapter 9 of the Scientific and Technical Guidelines (CLCS/11)
• May be arranged as a set of several annexes
• All data submitted in support of a submission will be considered by the CLCS