Land and Sea Model
An overview of the various activities in the Land and Sea Model work package, as well as the involved project partners, is available in a work package summary report.
State of the Art report
As a preparation for generating a Reference Base for the North Sea, BLAST conducted a study of the current state of the art of the nature, currency, provenance and availability of relevant datasets and feature types. The first part of this report aims to support the identification of projects that may produce relevant datasets for the BLAST project and to identify whether standardized metadata exists for these datasets. The second part of this document describes the considerations behind the BLAST metadata catalogue, and the collection of metadata.
The Work Package 3 partners have developed a metadatabase where metadata of all data being used in the BLAST project can be compiled and distributed. The metadatbase is fully ISO- and INSPIRE-compliant and has been developed to meet the needs of the BLAST project partners.
Development of the BLAST metadatabase has been based on an initial review of the state of metadata distribution among the BLAST participants, as well as the requirements of the INSPIRE Directive. Built on open-source technologies and to current best practice and standards, the metadatabase meets the BLAST partners' current needs and can be adapted in stride with future developments.
Vertical Reference Frames
In the North Sea region, there are a number of national vertical reference frames in use. This impedes the development of cross-regional models. Therefore, BLAST has developed a shared vertical reference frame that can be used across the region, as well as a transformation tool that can convert data from one national vertical reference frame to another, in order to improve the foundations for cross-border modelling.
Read more about the shared vertical reference frame and transformation tool here:
- BLAST Vertical Datums (PDF)
- BLAST Height Transformation Tool (PDF)
- BLAST Height Transformation Tool (Zip file - 35 MB)
In addition to the work undertaken to define the North Sea's vertical reference frame as noted above, another work package activity dealt with the development and application of a new methodology for the unification of chart datums in the North Sea area and the connection to the onshore height systems. The output surfaces created are being incorporated into the BLAST Height Transformation Tool (above) so that data users can choose which method to use when vertically transforming their data.
Coastal Surveying to Support High Resolution Mapping
A comparative study of different LiDAR techniques and platforms was undertaken across pilot sites in both Belgium and Denmark. The objective of this work was to test the new airborne laser techniques in the coastal/intertidal zones, but also to gain new high resolution data in these areas, to use as input to help improve the Interoperable Land-Sea Reference Base datasets.
The results of the work in Belgium are presented in the final report - click here.
The results of the work in Denmark are presented in an additional report - click here.
Prototype BLAST Interoperable Land-Sea Reference Base
The data for the Reference Base is made available, under the BLAST Project, via SeaZone. For access to the data, please email marisha.rust seazone.com.
A technical report on the 'Land Sea Interoperability Audit, Methodology and Tool Creation' has been completed and is available to view now.
BLAST Feature Catalogue
A Feature Catalogue has been developed for the prototype Interoperable Land-Sea Reference Base.
This catalogue contains definitions and descriptions of the feature types, feature attributes and attribute values, occurring in the prototype Interoperable Land-Sea Reference Base. It comprises a single ISO 19110:2006 compliant XML document and a set of HTML pages to provide visual and searchable representation of the XML document.
The XML document is created by mapping items from the Product Specification to corresponding elements in the ISO 19110:2006 schema. These mappings are then used to generate XML elements for each feature type in the prototype Interoperable Land-Sea Reference Base.
This Feature Catalogue can be used alongside the Reference Base data as a support tool.
The feature catalogue for the Reference Base is made available, under the BLAST Project, via SeaZone. For access to the data, please email marisha.rust seazone.com.
BLAST Application Schemas
Application Schemas have been developed for the prototype Interoperable Land-Sea Reference Base. These are concept-based schemas which identify object/feature classes, and object-specific relations for the Reference Base. These schemas allow the visualisation of the data from the Feature Catalogue (above) and support data interoperability within the BLAST community.
The application schema for the Reference Base is made available, under the BLAST Project, via SeaZone. For access to the data, please email marisha.rust seazone.com.
Merged Solid and Drift Geology of the Forth Estuary
This report is covers a study by the British Geological Survey (BGS) to merge onshore and offshore geoscientific data in a part of the Forth Estuary. The report represents a first step towards creating protocols to allow such merged datasets to be created in other parts of the continental shelf.