Global Bathymetry GEBCO
Introduction
This dataset is relevant for windPRO users working with offshore wind farm development. The General Bathymetric Chart of the Oceans (GEBCO) is a global bathymetry dataset – developed from multiple sources by an international group of experts. The resolution of the dataset is at 30 arc-seconds (approximately 1km). It was released in 2014 – based on a previous version from 2008. Traditionally, the GEBCO dataset have focused on deep-water areas (i.e. beyond 200m water depth), however with the recent versions many shallow water areas have been added based on contributions from national hydrological offices. The GEBCO bathymetry holds a global coverage, the areas where national shallow-water data has been assimilated into the dataset can be seen in the figure to the right.
Availability from within WindPRO and Usage Notes
The data is available directly from within windPRO and can be accessed from the online-services in the Elevation Grid Object.
Usage:
- In order to access the data, please set the purpose of the Elevation Grid Object to 'Water depths'.
- If you want to export the grid to contour lines: This can be done from within the grid-object, simply select the layer of interest, then choose 'Export Layer'.
- The original dataset from GEBCO also include land elevations – these originate from the various sources, such as: SRTM30, GMTED2010, IBCAO v3, Bedmap2 and a DEM for Greenland by Ekholm. These are not distributed with windPRO – instead use the higher quality data that comes with the windPRO online services.
- The dataset with windPRO is processed, so that it only holds water depths (with the convention that water depths are with negative values).
Reference System
The following coordinate reference systems were used in the original data:
- Horizontal: Geographical [deg,min] - WGS84
- Vertical: The GEBCO dataset is generated from multiple sources. However, generally, the vertical co-ordinate can be assumed to be reffered to the mean-sea-level (MSL). At some shallow-water areas – the vertical datum may be other than MSL.
Feedback to GEBCO
Any reported errors in the datasets are available from the errata-page of GEBCO. Users are encuraged to report any problems back to GEBCO <click-here> in order to ensure further future improvements of the data.
Coverage
Global
Attribution
Please use the following attribution when using this dataset - and also consider and accept the disclaimer from GEPCO.
The GEBCO_2014 Grid, version 20150318, http://www.gebco.net. Distribution through windPRO and EMD.
Acknowledgement
- The international group of experts and GEBCO are thanked for producing this global bathymetry dataset – and disseminating it in the public domain and thus for aiding the development of renewable energy and in particular the offshore based wind-energy.
- Integration of this dataset into EMD services - was co-supported through the InnoWind project (www.innowind.dk) - which is co-funded by the Danish Innovation Fund.
License, Terms of Use and Disclaimer
The following license, terms-of-use and disclaimer applies to the GEBCO dataset. The conditions are from the GEBCO webpage, accessed 2019-02-15.
License:
GEBCO's gridded bathymetric data sets are placed in the public domain and may be used free of charge. Data within GEBCO's gridded bathymetric data sets are subject to copyright and database rights restrictions. Use of GEBCO's gridded bathymetric data sets indicates that you accept the terms and conditions of use and disclaimer information given below. Under these terms you are free to:
- Copy, publish, distribute and transmit the information
- Adapt the information
- Exploit the information commercially for example, by combining it with other information, or by including it in your own product or application
Terms and conditions of use:
- You must acknowledge the source of the data. A suitable form of attribution is given in the documentation that accompanies the data set.
- Ensure that you do not use the information in a way that suggests any official status or that GEBCO endorses you or your use of the information.
- Ensure that you do not mislead others or misrepresent the information or its source.
Disclaimer
- GEBCO's gridded bathymetric data sets are made available 'as is'. While every effort has been made to ensure reliability within the limits of present knowledge, the accuracy and completeness of GEBCO's gridded bathymetric data sets cannot be guaranteed. No responsibility can be accepted by those involved in their compilation or publication for any consequential loss, injury or damage arising from their use or for determining the fitness of the data for any particular use.
- Users should be aware that GEBCO's gridded bathymetric data sets are largely deep ocean products (based on trackline data from many different sources of varying quality and coverage) and do not include detailed bathymetry for shallow shelf waters. Although GEBCO's gridded bathymetric data sets are presented at 30 arc-second and one arc-minute intervals of latitude and longitude, this does not imply that knowledge is available on seafloor depth at this resolution. Users are advised to consult the accompanying data set documentation before using the data sets.
- GEBCO'S global bathymetric data sets shall not be used for navigation or for any other purpose involving safety at sea.
External Links
- General Bathymetric Chart of the Oceans: https://www.gebco.net/
- Description of the GEPCO Bathymetry data set: https://www.gebco.net/data_and_products/gridded_bathymetry_data/gebco_30_second_grid/
- InnoWind: http://www.innowind.dk