Creation of quality-assured datasets for the German Bight
A data and method bank will be set up for seafloor, which will describe compiled natural data as a time-varying digital geomorphological model. This allows planar interpolation and semi-automatically produced consistent models and maps for relationship between geomorphology, hydrodynamic, sediment composition, and their dynamics. For a period of 20 years, simulation models will be operated as part of multi-model approach and the quality of model results will be analyzed and documented.
Data analysis on geomorphology, hydrodynamic, sediment and user structure
Based on model results, analyzes are carried out on a variety of morphological, hydrodynamic and sedimentological parameters. Products are consistent bathymetries, maps and models of dynamics of morphology, sediment and tide events. The participatory process identifies stakeholders and their needs for products.
Participatory development of prototypical applications
Due to intensive dialogue between stakeholders and project consortium, linking of requirements is promoted in the phase of participatory product development with possible solutions. Together, we will develop usable prototypical products for selected applications and ensure their usability in test runs.
Visualization, provision and storage of products
All products (data, methods, models, complex visualizations) are deployed on the platforms of EasyGSH-DB (data and information portal) and merged into MDI-DE and mCLOUD based on a distributed database. They contained metadata is according to currently valid standards (INSPIRE, WSV) as well as proof of origin and processing. The offer is complemented by an information portal applications on selected topics.
The aim of the project is to generate quality assured high-resolution reference data sets for the area of the German Bight by using available measurements, hydrodynamic simulations and analysis and make them accessible in a simple way.
Geodata and products prepared in the framework of EasyGSH-DB are provided via existing structures of the Maritime Data Structure Germany (MDI-DE) as well as information systems of the Federal Maritime and Hydrographic Agency (BSH) and the Federal Ministry of Transport and Digital Infrastructure (mCloud), thus guaranteeing practical and long-term availability.
For the first time, practice-oriented application options are systematically developed and prototypically implemented through close cooperation with future users. The early involvement of stakeholders and organization of a participatory process that continues over the entire duration of the project ensure focus on practice-relevant products.
The work focuses on geomorphologic data for bathymetry, sedimentology and data for hydrodynamics, salt and sediment transport as well as sea state. The project structure of EasyGSH-DB therefore offers possibilities for a large number of stakeholders from administration, maritime industry, research, non-governmental organizations and interested population to work proactively on product development of high-resolution, quality-assured databases.
The map viewer is intended to provide an overview of some EasyGSH-DB products for users.
The map tool can be accessed with the button "to the viewer for analysed data", project-related prototypical data of bathymetries, sediment parameters and hydrodynamic data are presented by a web map service (WMS).
In a second viewer we explicitly present synoptic data based on netCDF. Hydrodynamic data is presented in the viewer for synoptic data. It is selected data, due to data size of the netCDF files.
The data visualized in the viewer is available for download.
WMS / WFS / WCS are offered for use of EasyGSH geodata in other web or desktop applications. Desired data can be integrated into your own GIS applications using following URLs. Change year for web services to integrate hydrodynamics.
Due to the GeoTiff size it can happen that GIS programs do not load data completely on the first attempt, so that "0" values are displayed, then reload WCS.
All products from EasyGSH-DB are available in sense of 4.0 International (CC BY 4.0), provided the name is given.
For the first time, EasyGSH-DB provides synoptic model data in addition to analysis data. With these netCDF files, users can e.g. start their own models or analyzes.
All synoptic data can be viewed beforehand in a viewer and are rasterized to a resolution of 1000m.
- Bathymetry (1996-2016)
- Morphological drive
- Morphological space
- Isolines (1996-2016)
and moreto download
Aim of the information portal is to provide documentation of specific information about generation process and data from EasyGSH-DB.
In particular, "lineage" and "keywords" information stored in metadata should be used and support development of a thematic map.
Then links of "encapsulated" learning objects with metadata should ensure reusability.
to information portal
2. Stakeholder Workshop
25. March 2019 - Prototyping partnerships
Umgang mit Unsicherheiten (Ger.)
Bestimmung von Wattkanten (Ger.)
Beurteilung von Trassen (Ger.)
├ťbergabe von Randwerten (Ger.)
Workshop Protokoll (Ger.)
3. Stakeholder Workshop
14. November 2019 - Habitate & Biotops
Bathymetrische Produkte (Ger.)
Canceled because of Corona-Virus
Einladung und Programm (Ger.)
Vorstellung EasyGSH-DB (Ger.)
Einblick in die Prototyping Partnerschaften:
PP Randwerte (Ger.)
PP Lebensraumtypen (Ger.)
PP Trockenfallkarten (Ger.)
PP Wattkanten (Ger.)
PP Morphologischer Raum (Ger.)
10.- 12. April 2019
Annual data sheets - extract of validation document
Bundesanstalt f├╝r Wasserbau, 2019, Jahreskennblatt Jahr - Kurzfassung der Validierung, doi: https://www.doi.org/10.18451/k2_easygsh_jkbl_<1996-2015> (Ger.)
For the use of EasyGSH-DB data products in publications (articles, papers, reports, books, and data products derived from EasyGSH-DB products), all users are subject to the provisions of CC BY 4.0.
To cite the EasyGSH-DB hydrodynamics or sea state products, please indicate: "The EasyGSH-DB products and metadata were obtained from the EasyGSH-DB portal www.easygsh-db.org " and quote the DOI : https://www.doi.org/10.18451/k2_easygsh_1 for the following reference:
BUNDESANSTALT F├ťR WASSERBAU; HAGEN, R.; FREUND, J.; Pl├╝├č, A. and IHDE, R.: Validierungsdokument EasyGSH-DB Nordseemodell. Teil. UnTRIM2 ÔÇô SediMorph ÔÇô UnK. 2019, https://www.doi.org/10.18451/k2_easygsh_1 (aufgerufen am: xxx)
From the start of the project, metadata was recorded to ensure long-term useability and traceability.
Metadata is automatically recorded in the netCDF header for synoptic data and manually for products. Product metadata is linked to
direct downloads and, if available, to additional information such as the validation document for the model and the annual information sheets.
Metadata for products are offered as PDF or XML in the download area.
Via Harvest of CSW (Catalog Service for the Web) interface of BAW on the which metadata acquisition system NOKIS (North and Baltic Sea Coastal Information System) is located, metadata is harvested to mCLOUD
(www.mcloud.de), MDI-DE (www.mdi-de.org), GovData (www.govdata.de) and GDI-DE
(www.geoportal.de). Data from EasyGSH-DB appears in Geoportal Europa - INSPIRE by querying from GDI-DE. As a result, metadata comply with applicable standards
(INSPIRE, GDI-DE, WSV) and include quality evidence of origin and processing processes. This network of connections ensures web-based provision of data for experts and public.
Examples of different visualizations of data are shown in the gallery.
The project EasyGSH-DB consists of different partners with respective subprojects.
Bundesamt f├╝r Seeschifffahrt und Hydrographie (BSH) - Federal Maritime and Hydrographic Agency -
Bernhard-Nocht-Stra├če 78, 20359 Hamburg - contact
Preparation, analysis and provision of geomorphological data of the German Bight
"Quality-assured ground data": The importance of data and information about waterbed has grown steadily in
recent decades. They are in particular requested by maritime industry, planning offices, ecologists, but also by federal and state
authorities to fulfill their tasks. The sea survey data and sedimentological data (sediment samples and side-view sonar recordings and maps)
available from federal authorities and administrations are merged to form a quality-assured database-based simulation model of the water
surface of the German Bight. Consistent area wide sedimentological and geomorphological base products, such as e.g. annual bathymetries are created.
"Analysis of ground data and derivation of products": This sub goal focuses on derivation of complex geomorphological products (depth differences, hypsometries, animations, maps of sediment properties). In addition, methods for spatial interpolation of particle size distributions depending on seabed facies and hydrodynamic system are improved, carried out and results are offered as products. By way of example, it should be examined to what extent a time variant surface sediment distribution can be calculated by combining morphological time series. Conceptual analyzes are also intended to capture relationships between ground data and hindcast modeling results. The results are classifications and descriptions of different types of seabeds according to ground physical, hydro- and sediment dynamic properties in form of maps and texts as well as resulting function as habitat, resource or subsoil.
"Data storage and publication": The easy accessibility and searchability of collected data and created products is an essential prerequisite for acceptance and use by target groups addressed in overall target. For this purpose, suitable previews and download components are developed and integrated into infrastructures of the established Internet portals in the business area of the BMVI.
Contact person: apl. Prof. Dr.-Ing. habil. Peter Milbradt
Stakeholders/Requirements and Participatory Product Development
As part of the subproject EasyGSH-DB_Dialog of the joint project EasyGSH-DB, a participation process is organized and carried out by the
company K├╝ste und Raum over the entire duration of the project. A mutual exchange between partners of the consortium and potential
users of data is used to organize a proactive mediation of demand and possible offers. The aim is to identify solutions for a representative
selection of requirements together with potential users and to develop them in practice. The tasks of the company K├╝ste und Raum are mainly
aimed at communication between project consortium and stakeholders. In the first phase of the project, relevant stakeholders and their
needs for products are identified in order to be able to develop selected products as prototypes in the second project phase as part of
participatory product development.
Important target groups for use of marine geodata are federal, state and municipal administrations (Transport and environment ministries, coastal protection and environmental authorities, etc.), public institutions from research (oceanography, coastal engineering, environmental sciences, etc.), as well as the public, consisting of NGOs (environmental associations, environmental organizations, tourism, sailing association, etc.) and the economy (energy producers, engineering firms, fisheries, etc.). The aim is to include as many relevant groups as possible in the participation process.
To ensure this, an extensive analysis is carried out in the first phase of the process:
which are already existing products that are currently available from project partners but also from other sources on the topics of geomorphological and hydrological baseline data,
which relevant stakeholders for the German Bay area are to include. The degree of further involvement in the project is determined in consultation with consortium partners and willingness of identified stakeholders.
needs of identified stakeholders. For this purpose, selected stakeholders are consulted in form of structured interviews and questioned about needs and existing deficits.
identified product needs resulting from analysis of needs and deficits. In a coordination process conducted in collaboration with stakeholders and consortium partners, products (to be developed) are selected.
In the second phase of the project, participatory product development will be carried out for selected product needs based on analyse results.
The goal is to develop applications and practicable solutions together with stakeholders. The previous phase of dialogue is mainly about close
interaction between project consortium and users of the to be developed products. In order to develop user friendly products that are specific to
respective needs, this exchange is organized in form of one on one discussions and workshops with respective stakeholders. In the subsequent phase of
prototyping, further development into prototypical products for selected use cases takes place. The usability is ensured by an interactive vote on the basis of test
runs, in which all consortium partners and relevant stakeholders are involved.
Contact person: Dr. J├╝rgen Meyerdirks
Creation of synoptic reference data of hydrodynamics, sediment transport, sea state and creation of a supportive e-learning platform
The tasks of Institute of Hydraulic Engineering of the Technical University of Hamburg (TUHH-WB) focus on model based determination
and provision of quality assured temporally and spatially highly resolved hydrodynamic, morphodynamic conditions and salinity in the German Bight for the period 1996
to 2015 as basis for target group-specific applications. For this purpose, the model chain Telemac - Sisyphe - Tomawac is used as part of a multimodel approach, as
well as the SWAN model for the sea state.
In addition to actual operation of models, an essential part of the work will be quality assurance of results by direct comparison with calculation results of BAW (see lead application). Within the scope of multimodel approach, the TUHH carries out three-dimensional simulations of hydrodynamics and seaway as well as salt and sediment transport with Telemac / Sisyphe / Tomawac. It is expected that ongoing comparison of work results in the project will produce quality assurance methods that can only be achieved on basis of ongoing comparisons of work results, and which will ensure that, in the future, for both the project partners and other institutions the quality of model results can be significantly improved.
The Telemac model chain used in this subproject of the TUHH consistently uses finite element method to solve equations of motion. Furthermore, multi-model approach (the model chain of the BAW uses the finite difference method) makes it possible to compare model performance of different model families.
Contact person: Prof. Dr.-Ing. Peter Fr├Âhle
Creation of synoptic reference data of hydrodynamics, sediment transport and sea state as well as their publication in specialized information portals
The subproject EasyGSH_ModPort is embedded in the mFUND joint project EasyGSH-DB and includes simulation runs and analyzes by BAW and TUHH. These form the basis for study of coastal hydrology issues and further investigations, which assume a spatially and temporally consistent basis of marine geo and hydrodynamics data. More specifically, work in this subproject focuses on the
Creation of quality-assured simulation data on hydrodynamics, salt / sediment transport and sea state parameters,
analysis of simulation data and derivation of products and
data management and publication.
"Simulation data": To characterize dynamic conditions in the German Bight, hydrodynamic measurement data, which as a rule are only available
selectively, spatially and temporally interpolated via simulation models and thus created consistent reference datasets for the natural habitat of the German Bight. Data are
first considered for a period of 20 years (1996 - 2015), which represent a complete nodal cycle of partial tides of the moon (18.6 years). They describe a sufficiently recent
period, which is already sufficient for many questions and planning tasks. In addition to actual basic data, derived, characteristic quantities are also merged.
"Analysis of simulation data and derivation of products": Both desired high spatial and temporal resolution and quality of simulation data allow a variety of characteristic analyzes of water level, flow, salt and sediment transport as well as sea state and thus their changes over the years. This also concerns analysis and statistical evaluation of frequencies of hydrodynamic variables and assignment of occurrence probabilities. For detailed characterization of tidal dynamics, harmonic constants of water level and flow are documented.
"Data storage and publication": The easy access to data and products compiled as a digital catalog is an essential prerequisite for acceptance and use by the addressed target groups. For this purpose, IT infrastructure components used at BAW and BSH must be further networked, metadata and data services adapted and expanded, and simple entry points, previews and download components integrated.
Contact person: Dr.-Ing. Andreas Pl├╝├č
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