Maritime forum

MARE/2009/07 EMODnet hydrography final report

Published on: Sat, 06/10/2012 - 16:55

Overall cooperation from data providers has been very good. Up till August 2012 more than 8400 bathymetric survey datasets, managed by 14 data centres from 9 countries and originated from 114 institutes, have been collated and made available for internal use in the EMODNet Hydrography and Seabed Mapping projects for analysing and generating the EMODNet digital bathymertry. It appears that data providers welcome the SeaDataNet concept, that their datasets are described by metadata in the public CDI data discovery and access service, while they can keep control of the access themselves by means of the data access restriction metadata field. The CDI service functions as a shop window to inform users of their data holdings. Especially in the field of bathymetric survey datasets it appears that data providers do not simply want to give open access to their precious datasets, but want to negotiate with potential users about access and use. Therefore all datasets included so far have been labeled as restricted, leading to a negotiation in case of user requests. Also it appears that the data providers do not object that the generated EMODNet digital bathymetry is made available to users without any constraints for viewing, sharing as W MS service and downloading as DTM tiles in various formats. The resolution of 0.25 minute by 0.25 minute is considered as low resolution and the derived product as a good way to attract potential users.

The collated datasets are gathered from consortium partners. Also in a number of cases subcontracts have been established with identified other data providers. The aim of the subcontracts is not to fund the purchase of datasets, but to cover the extra efforts required by data providers for describing their datasets in the CDI metadata format and for making their datasets fit for use by the EMODNet consortium. Some subcontracted data providers gave a copy of their survey datasets to partners; others decided to work up their datasets themselves to a subDTM at an internal resolution of 1/16 minute by 1/16 minute, following the EMODNet QA/QC and production methodology. These data providers then transferred the subDTM to the consortium and not their survey datasets.

The discovery of additional data providers and additional datasets is an ongoing activity within the EMODNet Hydrography and Seabed Mapping projects. It is supported by a promotional campaign, especially trying to trigger private sources, and by synergies with other relevant projects and networks, such as SeaDataNet, Geo-Seas and others. At present there are no barriers observed towards making datasets available to the EMODNet project, products and services, as long as access restrictions and use conditions are respected. Also all extra data providers are considered as associate partners and as such engaged in the project by naming them on the portal and giving them access to project documents and communication.

The spatial and temporal coverage of gathered datasets for the European maritime regions will be analysed in deep in the WP3.4 activities. As a preliminary conclusion it can be said that many parts of the European waters have not been surveyed at all or not by modern techniques.

final report