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Data and Products

Data Access

The majority of data acquired by INFOMAR is available digitally via the following sites.

  View Data

Query Data

Download Data

Data Type (more info on formats & software)
Limited No Yes

Backscatter grid(.ers), xyz (.dat), geotiff(.tif), .pdf

Bathymetry grid(.ers), xyz (.dat), Fledermaus (.scene, .sd), Google (.kmz), geotiff(.tif), zipped ESRI ArcGIS GRIDS, .pdf.

Geology shapefile .shp

Gravity grid(.ers), vector xyz (.dat), map(.png), zipped ESRI ArcGIS GRIDS.

Lidar xyz (.dat), geotiff(.tif), Google (.kmz), zipped ESRI ArcGIS GRIDS.

Magnetics grid(.ers), vector xyz (.dat), map(.png), zipped ESRI ArcGIS GRIDS.

Reports .doc, .xls, .pdf

Seabed Classification zipped ESRI ArcGIS GRIDS & shapefile .shp

Vector Data vector points xyz (.dat) or shapefile .shp (eg survey coverage areas, survey lines, sample locations, shipwrecks)

Offshore Charts .pdf .zip

Yes No Yes

Vector Data (eg survey coverage areas, survey lines, sample locations, shipwrecks) csv, kml, shapefile, file geodatabase, API

Limited Yes Yes

Bathymetry (Raw) .raw

Yes Limited Yes

Vector Data (eg survey coverage areas, survey lines, sample locations, shipwrecks) .shp, .gdb, .dwg, .dxf, .dgn,


Yes Yes Yes

Vector Data (eg sample locations, shipwrecks) .csv

Yes Limited No  
No No No Metadata .htm

INFOMAR Survey Data Download

Open Download Site

The Interactive Web Data Delivery System (IWDDS), was developed by Intrepid Geophysics of Australia and is hosted by the GSI. It allows users to browse a catalogue of all the available data and to then pull
their own raw data selections onto their own machines. Data such as bathymetry and backscatter grids, ascii files, fledermaus scenes, google .kmzs and leg reports for all INSS and INFOMAR surveys can be downloaded.

The site contains a very basic map covering the entire Irish land and sea area. A user can choose their area of interest by coordinate map extent, or by map number if they already know the area well, or by
drawing a map-extent box on the map.

If a user is unsure with regards to their area of interest they may prefer to use the INFOMAR webmapping viewer to locate the data. The viewer allows the user to choose by survey leg for example.

When a user is happy with their selected area, they then proceed to the download page. The user then selects a data type (vector, gridded, report, fledermaus, google), a region (onshore or offshore) and a theme (bathymetry, backscatter, bedrock etc).

Depending on the user’s chosen criteria and area of interest, the system then returns a listing of all of the data it contains of that type within that area. The user can browse through and preview this listing.

After making selections for parts or all of the data listed, a user submits their data request. The request gets queued for action by the system. When the request has been acted upon and completed by the system, the IWDDS then emails the user who made the request, giving them a secure FTP link to download the data.

Additional features such as end user map creation on the fly and end user on the fly gridding of the XYZ datasets is also available.

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INFOMAR Survey Open Data Download

Open Data Download Site

Our vector data can be viewed and downloaded in open formats (csv, kml, shapefile, file geodatabase). They can also be accessed via API as a Geoservice and GeoJSON.

Data includes shipwrecks, seabed samples, survey coverage & survey tracklines. Web maps & web mapping applications are also available to view.

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INFOMAR raw Multibeam Bathymetry Data Download from NOAA

Open Download Site

INFOMAR sends raw multibeam bathymetry data to NOAA's National Geophysical Data Center (NGDC). NGDC is the US national archive for multibeam bathymetric data and presently holds over 15.7 million nautical miles of ship tracklines (1187 surveys) received from sources worldwide. In addition to deepwater data, the multibeam database also includes hydrographic multibeam survey data from NOAA's National Ocean Service (NOS).

Locating and Downloading Data:

Multibeam bathymetric data at NGDC can now be selected via an interactive map (ArcGIS) Web interface. Data selections are downloadable for free.

Frequently Asked Questions:

Why can't ESRI read the data I downloaded?
You probably downloaded the raw multibeam files. These can't be read by ESRI. You can go to autochart (http://www.ngdc.noaa.gov/autochart/) which will allow you to create a NetCDF binary grid of the data in your area of interest which ESRI can read.

What other programs can I use to read raw multibeam data?
Some of the products known to read raw multibeam data are: MB-System, CARIS, and Fledermaus. This list is provided for information only, NGDC does not recommend or endorse external products.

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Webmapping Viewer

Click Here to open the Webmapping Viewer in a new window

The webmapping viewer has been designed to display the large raster datasets. This includes bathymetry (water depth), seabed classification, backscatter and shaded relief datasets.

Bathymetry grids are scaled and you will see a higher resolution as you zoom into the map. The resolution varies between 2 - 100m resolution. There is a variation in the standard of the data used in the viewer, these are divided into surveys that meet IHO standards and surveys that don’t meet IHO standards. Both layers can be viewed in the Survey Coverage layer.

Data from associated projects/organisations is also used within the viewer and again you can see the name of the associated organisation or project in the Survey Coverage Layer.

The seabed classification divides the seabed into different sediments types. The resolution varies between 5 - 20m resolution.

The backscatter images can be used to interpret the composition of the seafloor. High backscatter is shown as dark areas and represents rock outcrops and the soft sediments are lighter grey areas. The resolution varies between 2 - 20m resolution.

The shaded relief images are created by artificially placing a sun at an angle to the terrain model created from the XYZ values to give light and shade to the terrain and are excellent for showing the texture and general composition be it sediment or rock or the seafloor. The resolution varies between 2 - 100m resolution.

Vector datasets are also available including shipwrecks, survey areas, tracklines and grab sample data. 

The ARCGIS REST service link for this viewer is


You can use the link to view all of our data in the ArcGIS desktop software.

Within the service there are two image services available (Bathy_All_Surveys and Bathy_CoastalSurveys) which enable users to view and identify values in the bathymetry data.

Open ArcCatalog. Go to GIS Servers. Add ArcGIS Server. Use GIS Services. Paste in the link.

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New Webmapping Viewer

NEW INFOMAR Web Mapping Viewer has increased functionality to allows users to view and explore INFOMAR data.

Users can get elevation profiles.

Tools include: Elevation Profile, Swipe, Identify, Measure, Add Service, Add Shapefile, Draw, Save Session and Print.

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Dynamic Web Mapping Viewer

INFOMAR Dynamic Web Mapping Viewer allows users to manipulate and analyse the bathymetry data within the browser. View the INFOMAR Dynamic Web Mapping Viewer Quick Guide on YouTube https://youtu.be/A54mWGW-egw

The viewer enables dynamic rendering of the bathymetry data so it can be manipulated to best suit each individuals requirements.

It is also possible to extract water depths for specific points and carry out basic analysis of the bathymetry data such as slope and aspect analysis....Open Viewer

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Web Map Services, Ocean Basemap and REST Services

You can access INFOMAR's GIS data directly through your desktop GIS application, and also you may use the links below to view our data in a variety of Open Source Viewers (eg Gaia). Please note that some datasets are scale dependant and will not be visible until you zoom in.

To view the WMS in ArcGIS. Download Opening a GSI_INFOMAR WMS in ArcGIS.pdf

To view the WMS in Gaia . Download Opening a INFOMAR WMS in Gaia.pdf

WMS Image


Bathymetry & Lidar (111m and 10m),

Shaded Relief Bathymetry & Lidar (111m and 10m)



Backscatter 10m



Survey and Lidar Coverage



Survey Tracklines






Samples & SVP

INFOMAR Samples, INFOMAR Samples Particle Size Analysis, Non INFOMAR Samples Particle Size Analysis & Seabed Survey Sound Velocity Profiles



Seabed Classification



INFOMAR Seabed Survey Priority Areas and Bays

Biologically Sensitive Area, INFOMAR Priority Areas & INFOMAR Priority Bays


Maritime Boundaries

INSS/INFOMAR Zones (50m-5000m),Ireland Designated Continental Shelf, Ireland Territorial sea limit (12NM) Nautical Miles & Irish Exclusive Economic Zone EEZ


WMS Image


Bantry and Dunmanus Coastal DTM

Aerial Lidar Geotiffs, Backscatter Geotiff, Bathymetry and Lidar Geotiff, Bathymetry and Lidar GRID & Seabed Classification GRID


WMS Image


Cork East 5m Shaded Relief NW Bathymetry


WMS Image


Cork Middle 5m Shaded Relief NW Bathymetry


WMS Image


Cork West 5m Shaded Relief NW Bathymetry


WMS Image


Dublin 5m Shaded Relief NW Bathymetry and 30cm to 2m shipwrecks


WMS Image


Galway 5m Shaded Relief NW Bathymetry, Lidar and shipwreck


WMS Image


Kerry 5m Shaded Relief NW Bathymetry


WMS Image


Louth & Meath 5m Shaded Relief NW Bathymetry, 30cm to 2m Shipwreck geotiffs


WMS Image


Waterford 5m & 20m Shaded Relief NW Bathymetry


WMS Image


Wexford 5m & 20m Shaded Relief NW Bathymetry


WMS Image


Wicklow 5m Shaded Relief NW Bathymetry, 30cm to 2m Shipwreck geotiffs


WMS Image


European 230m Shaded Relief Bathymetry (various color ramps), Coastlines, Depth contours, High Res Coastal dtms (Bantry & Dunmanus 7m)

INFOMAR data included in dataset EMODnet Bathymetry


WMS Image


European dataset. Aggregate Deposits, Cobalt rich ferromanganese crusts, Evaporite Deposits, Gas Hydrate Deposits, Hydrocarbon Deposits, Marine Placer Deposits, Phosphorite Deposits, Polymetallic Nodules & Polymetallic Sulphides PMS.

INFOMAR data included in dataset EMODnet Geology Minerals.


ArcGIS REST services

Open ArcCatalog. Go to GIS Servers. Add ArcGIS Server. Use GIS Services. Paste in the Server URL.

REST Image


All GSI datasets.INFOMAR data, EMODnet Geology Minerals, Groundwater, Bedrock, Geological Heritage, Geotechnical, Minerals, Quaternary & Tellus.


REST Image


Bathymetry (various resolutions), Backscatter, Shipwrecks, Survey and Lidar Coverage, Samples, Seabed Classification & Tracklines

All layers in Webmapping Viewer


REST Image


Irelands Marine Atlas administrative units, Irelands Marine Atlas Energy exploration, energy resources infrastructure, tidal, wave, wind, environmental monitoring facilities, fisheries, geology, habitats & biotopes, Survey and Lidar Coverage, Samples, Land Cover, meteorological features, Ocean Features, Protected sites features, Sea regions, species distribution, Marine Mammals, maritime transport related features & Utility and Government Services layers



REST Image


Global Shaded Relief Bathymetry - ESRI Ocean Basemap

INFOMAR data included in dataset


INFOMAR bathymetry has been incorporated into ESRI's Ocean Basemap. The Ocean Basemap is now available as a cached map service in ArcGIS Online. This map service is designed to be used as a basemap by marine GIS professionals and as a reference map by anyone interested in ocean data. The basemap includes bathymetry, marine water body names, undersea feature names, and derived depth values in meters.

You can view the basemap using the ArcGIS.com online viewer or ArcGIS Explorer online

An ESRI layer file can also be downloaded and used in ArcGIS Desktop. Click here

Click here for more information on the basemap

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Open Metadata Site

An online catalogue of our data holdings.

Metadata on the various data types collected by INFOMAR as well as metadata on all other datasets held by the Marine Institute and the GSI. Among the wide range of information databases available through ISDE are seabed mapping, ocean temperature and current, tidal information, groundwater and geological information, weather information from the coastal data buoys, locations of underwater heritage sites, Special Areas of Conservation, underwater wreck sites, fishing and fish spawning grounds.

If you search for INFOMAR you will find all of our metadata.

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Find Us
Geological Survey of Ireland Geological Survey, Ireland
Beggars Bush, Haddington Road
Dublin 4
Marine Institute Marine Institute Headquarters,
Rinville, Oranmore
Co. Galway
The National Development Plan
a modus site