Depth measurements to map the seafloor result in bathymetric data. Bathymetric data is of great importance for many marine information products such as navigation charts, environmental research and location optimization for wind turbines, oil platforms, cables and pipelines. Bathymetric data can be seen as the underwater equivalent of on land height measurements.
Bathymetric data types
There is great variety of acquisition methods for bathymetric data. At sea multi- and single beam sonar equipment is used to acquire bathymetric data. From air LIDAR mountend on aircrafts is used while satellite systems acquire bathymetric data from space. In the end all acquisition methods result in point cloud and raster datasets. In many cases specialized algorithms are used to generate derived infromation products such as depth contours or dredging areas. These derived datasets are ususally available as vector datasets.
Bathymetry in GeolinQ
For GeolinQ users a configured bathymetric datasource is available to import bathymetric point clouds, raster datasets as well as processed vector data. The datasource supports the import of files in ASCII, LAS, GeoTIFF en Shape file formats in all coordinate systems supported by EPSG.
The GeolinQ bathymetric datasource offers an ISO 19115 based metadata schema to store the metadata of bathymetric datasets consistently. Pre-defined color scales, styles and map layers help to interpret bathymetric datasets from the start. Datasets are available for further distribution to users or solutions using web services. The datasources can easily be changed or extended by end-users.
More information concerning bathymetry datasource including the Seamless Point Surface concept can be found via Bathymetry SPS tutorial on GeolinQ support.